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875 lines
16 KiB
C
875 lines
16 KiB
C
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
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#include <precomp.h>
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extern int __mb_cur_max;
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int __vfprintf(FILE*, const char*, va_list);
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/*
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* @implemented
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*/
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int lnx_vfprintf(FILE* f, const char* fmt, va_list ap)
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{
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int len;
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char localbuf[BUFSIZ];
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#if 0
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__fileno_lock(_fileno(f));
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#endif
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if (f->_flag & _IONBF) {
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f->_flag &= ~_IONBF;
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f->_ptr = f->_base = localbuf;
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f->_bufsiz = f->_cnt = BUFSIZ;
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len = __vfprintf(f, fmt, ap);
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(void)fflush(f);
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f->_flag |= _IONBF;
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f->_base = NULL;
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f->_bufsiz = 0;
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f->_cnt = 0;
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} else {
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len = __vfprintf(f,fmt, ap);
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}
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#if 0
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__fileno_unlock(_fileno(f));
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#endif
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return (ferror(f) ? EOF : len);
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}
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/*
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* linux/lib/vsprintf.c
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*
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* Copyright (C) 1991, 1992 Linus Torvalds
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*/
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/* vsprintf.c -- Lars Wirzenius & Linus Torvalds. */
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/*
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* Wirzenius wrote this portably, Torvalds fucked it up :-)
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*/
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/*
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* Appropiated for the reactos kernel, March 1998 -- David Welch
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*/
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#include <stdarg.h>
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#include <ctype.h>
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#include <string.h>
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#include <math.h>
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#include <internal/ieee.h>
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#define ZEROPAD 1 /* pad with zero */
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#define SIGN 2 /* unsigned/signed long */
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#define PLUS 4 /* show plus */
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#define SPACE 8 /* space if plus */
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#define LEFT 16 /* left justified */
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#define SPECIAL 32 /* 0x */
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#define LARGE 64 /* use 'ABCDEF' instead of 'abcdef' */
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#define ZEROTRUNC 128 /* truncate zero 's */
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static int skip_atoi(const char **s)
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{
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int i=0;
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while (isdigit(**s))
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i = i*10 + *((*s)++) - '0';
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return i;
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}
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static int do_div(LONGLONG *n,int base)
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{
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int __res = ((ULONGLONG) *n) % (unsigned) base;
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*n = ((ULONGLONG) *n) / (unsigned) base;
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return __res;
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}
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static int number(FILE * f, LONGLONG num, int base, int size, int precision ,int type)
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{
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char c,sign,tmp[66];
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const char *digits="0123456789abcdefghijklmnopqrstuvwxyz";
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int i, done = 0;
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if (type & LARGE)
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digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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if (type & LEFT)
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type &= ~ZEROPAD;
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if (base < 2 || base > 36)
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return done;
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c = (type & ZEROPAD) ? '0' : ' ';
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sign = 0;
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if (type & SIGN) {
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if (num < 0) {
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sign = '-';
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num = -num;
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size--;
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} else if (type & PLUS) {
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sign = '+';
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size--;
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} else if (type & SPACE) {
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sign = ' ';
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size--;
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}
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}
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if (type & SPECIAL) {
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if (base == 16)
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size -= 2;
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else if (base == 8)
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size--;
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}
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i = 0;
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if (num == 0)
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tmp[i++]='0';
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else while (num != 0)
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tmp[i++] = digits[do_div(&num,base)];
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if (i > precision)
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precision = i;
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size -= precision;
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if (!(type&(ZEROPAD+LEFT)))
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while(size-->0)
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{
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if (putc(' ',f) == EOF)
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return -1;
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done++;
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}
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if (sign)
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{
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if (putc(sign,f) == EOF)
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return -1;
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done++;
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}
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if (type & SPECIAL) {
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if (base==8) {
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if (putc('0',f) == EOF)
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return -1;
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done++;
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}
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else if (base==16) {
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if (putc('0', f) == EOF)
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return -1;
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done++;
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if (putc(digits[33],f) == EOF)
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return -1;
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done++;
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}
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}
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if (!(type & LEFT))
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while (size-- > 0)
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{
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if (putc(c,f) == EOF)
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return -1;
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done++;
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}
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while (i < precision--)
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{
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if (putc('0', f) == EOF)
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return -1;
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done++;
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}
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while (i-- > 0)
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{
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if (putc(tmp[i],f) == EOF)
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return -1;
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done++;
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}
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while (size-- > 0)
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{
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if (putc(' ', f) == EOF)
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return -1;
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done++;
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}
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return done;
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}
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static int numberf(FILE * f, double __n, char exp_sign, int size, int precision, int type)
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{
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double exponent = 0.0;
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double e;
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long ie;
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//int x;
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char *buf, *tmp;
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int i = 0;
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int j = 0;
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//int k = 0;
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double frac, intr;
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double p;
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char sign;
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char c;
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char ro = 0;
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int result, done = 0;
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union
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{
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double* __n;
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double_t* n;
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} n;
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n.__n = &__n;
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if ( exp_sign == L'g' || exp_sign == L'G' || exp_sign == L'e' || exp_sign == L'E' )
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{
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if ( 0 == n.n->mantissal && 0 == n.n->mantissah && 0 == n.n->exponent )
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{
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ie = 0;
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}
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else
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{
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ie = ((unsigned int)n.n->exponent - (unsigned int)0x3ff);
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}
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exponent = ie/3.321928;
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}
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if ( exp_sign == 'g' || exp_sign == 'G' ) {
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type |= ZEROTRUNC;
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if ( exponent < -4 || fabs(exponent) >= precision )
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exp_sign -= 2; // g -> e and G -> E
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else
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exp_sign = 'f';
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}
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if ( exp_sign == 'e' || exp_sign == 'E' ) {
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frac = modf(exponent,&e);
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if ( frac > 0.5 )
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e++;
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else if ( frac < -0.5 )
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e--;
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result = numberf(f,__n/pow(10.0L,e),'f',size-4, precision, type);
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if (result < 0)
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return -1;
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done += result;
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if (putc( exp_sign,f) == EOF)
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return -1;
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done++;
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size--;
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ie = (long)e;
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type = LEFT | PLUS;
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if ( ie < 0 )
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type |= SIGN;
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result = number(f,ie, 10,2, 2,type );
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if (result < 0)
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return -1;
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done += result;
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return done;
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}
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if ( exp_sign == 'f' ) {
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buf = alloca(4096);
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if (type & LEFT) {
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type &= ~ZEROPAD;
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}
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c = (type & ZEROPAD) ? '0' : ' ';
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sign = 0;
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if (type & SIGN) {
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if (__n < 0) {
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sign = '-';
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__n = fabs(__n);
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size--;
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} else if (type & PLUS) {
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sign = '+';
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size--;
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} else if (type & SPACE) {
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sign = ' ';
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size--;
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}
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}
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frac = modf(__n,&intr);
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// # flags forces a . and prevents trucation of trailing zero's
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if ( precision > 0 ) {
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//frac = modfl(__n,&intr);
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i = precision-1;
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while ( i >= 0 ) {
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frac*=10.0L;
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frac = modf(frac, &p);
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buf[i] = (int)p + '0';
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i--;
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}
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i = precision;
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size -= precision;
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ro = 0;
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if ( frac > 0.5 ) {
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ro = 1;
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}
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if ( precision >= 1 || type & SPECIAL) {
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buf[i++] = '.';
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size--;
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}
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}
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if ( intr == 0.0 ) {
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buf[i++] = '0';
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size--;
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}
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else {
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while ( intr > 0.0 ) {
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p = intr;
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intr/=10.0L;
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modf(intr, &intr);
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p -= 10.0*intr;
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buf[i++] = (int)p + '0';
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size--;
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}
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}
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j = 0;
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while ( j < i && ro == 1) {
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if ( buf[j] >= '0' && buf[j] <= '8' ) {
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buf[j]++;
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ro = 0;
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}
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else if ( buf[j] == '9' ) {
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buf[j] = '0';
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}
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j++;
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}
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if ( ro == 1 )
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buf[i++] = '1';
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buf[i] = 0;
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size -= precision;
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if (!(type&(ZEROPAD+LEFT)))
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while(size-->0)
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{
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if (putc(' ',f) == EOF)
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return -1;
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done++;
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}
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if (sign)
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{
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if (putc( sign,f) == EOF)
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return -1;
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done++;
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}
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if (!(type&(ZEROPAD+LEFT)))
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while(size-->0)
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{
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if (putc(' ',f) == EOF)
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return -1;
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done++;
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}
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if (type & SPECIAL) {
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}
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if (!(type & LEFT))
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while (size-- > 0)
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{
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if (putc(c,f) == EOF)
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return -1;
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done++;
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}
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tmp = buf;
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if ( type & ZEROTRUNC && ((type & SPECIAL) != SPECIAL) ) {
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j = 0;
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while ( j < i && *tmp == L'0' ) {
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tmp++;
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i--;
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}
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if ( j < i && *tmp == L'.' ) {
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tmp++;
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i--;
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}
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}
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// else
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// while (i < precision--)
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// putc('0', f);
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while (i-- > 0)
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{
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if (putc(tmp[i],f) == EOF)
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return -1;
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done++;
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}
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while (size-- > 0)
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{
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if (putc(' ', f) == EOF)
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return -1;
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done++;
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}
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}
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return done;
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}
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static int string(FILE *f, const char* s, int len, int field_width, int precision, int flags)
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{
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int i, done = 0;
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if (s == NULL)
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{
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s = "<NULL>";
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len = 6;
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}
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else
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{
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if (len == -1)
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{
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len = 0;
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while ((unsigned int)len < (unsigned int)precision && s[len])
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len++;
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}
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else
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{
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if ((unsigned int)len > (unsigned int)precision)
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len = precision;
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}
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}
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if (!(flags & LEFT))
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while (len < field_width--)
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{
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if (putc(' ', f) == EOF)
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return -1;
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done++;
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}
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for (i = 0; i < len; ++i)
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{
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if (putc(*s++, f) == EOF)
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return -1;
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done++;
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}
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while (len < field_width--)
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{
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if (putc(' ', f) == EOF)
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return -1;
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done++;
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}
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return done;
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}
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static int stringw(FILE *f, const wchar_t* sw, int len, int field_width, int precision, int flags)
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{
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int i, done = 0;
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char * mb;
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if (sw == NULL)
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{
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sw = L"<NULL>";
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len = 6;
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}
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else
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{
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if (len == -1)
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{
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len = 0;
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while ((unsigned int)len < (unsigned int)precision && sw[len])
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len++;
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}
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else
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{
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if ((unsigned int)len > (unsigned int)precision)
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len = precision;
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}
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}
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if (!(flags & LEFT))
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while (len < field_width--)
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{
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if (putc(' ', f) == EOF)
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return -1;
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done++;
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}
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mb = malloc(MB_CUR_MAX * sizeof(char));
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if(!mb)
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return -1;
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for (i = 0; i < len; ++i)
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{
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int mbcount, j;
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mbcount = wctomb(mb, *sw++);
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if (mbcount <= 0)
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{
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break;
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}
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for (j = 0; j < mbcount; j++)
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{
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if (putc(mb[j], f) == EOF)
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{
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free(mb);
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return -1;
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}
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done++;
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}
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}
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while (len < field_width--)
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{
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if (putc(' ', f) == EOF)
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{
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free(mb);
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return -1;
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}
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done++;
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}
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free(mb);
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return done;
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}
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int __vfprintf(FILE *f, const char *fmt, va_list args)
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{
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int len;
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ULONGLONG num;
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int base;
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double _double;
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const char *s;
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const wchar_t *sw;
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int result, done = 0;
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int flags; /* flags to number() */
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int field_width; /* width of output field */
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int precision; /* min. # of digits for integers; max
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number of chars for from string */
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int qualifier = 0; /* 'h', 'l', 'L' or 'I64' for integer fields */
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for (; *fmt ; ++fmt) {
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if (*fmt != '%') {
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if (putc(*fmt,f) == EOF)
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return -1;
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done++;
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continue;
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}
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/* process flags */
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flags = 0;
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repeat:
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++fmt; /* this also skips first '%' */
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switch (*fmt) {
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case '-': flags |= LEFT; goto repeat;
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case '+': flags |= PLUS; goto repeat;
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case ' ': flags |= SPACE; goto repeat;
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case '#': flags |= SPECIAL; goto repeat;
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case '0': flags |= ZEROPAD; goto repeat;
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}
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/* get field width */
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field_width = -1;
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if (isdigit(*fmt))
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field_width = skip_atoi(&fmt);
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else if (*fmt == '*') {
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++fmt;
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/* it's the next argument */
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field_width = va_arg(args, int);
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if (field_width < 0) {
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field_width = -field_width;
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flags |= LEFT;
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}
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}
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/* get the precision */
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precision = -1;
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if (*fmt == '.') {
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++fmt;
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if (isdigit(*fmt))
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precision = skip_atoi(&fmt);
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else if (*fmt == '*') {
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++fmt;
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/* it's the next argument */
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precision = va_arg(args, int);
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}
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if (precision < 0)
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precision = 0;
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}
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/* get the conversion qualifier */
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qualifier = 0;
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// %Z can be just stand alone or as size_t qualifier
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if ( *fmt == 'Z' ) {
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qualifier = *fmt;
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switch ( *(fmt+1)) {
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case 'o':
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case 'b':
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case 'X':
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case 'x':
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case 'd':
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case 'i':
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case 'u':
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++fmt;
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break;
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default:
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break;
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}
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} else if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L' || *fmt == 'w') {
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qualifier = *fmt;
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++fmt;
|
|
} else if (*fmt == 'I' && *(fmt+1) == '6' && *(fmt+2) == '4') {
|
|
qualifier = *fmt;
|
|
fmt += 3;
|
|
}
|
|
|
|
// go fine with ll instead of L
|
|
if ( *fmt == 'l' ) {
|
|
++fmt;
|
|
qualifier = 'L';
|
|
}
|
|
|
|
/* default base */
|
|
base = 10;
|
|
|
|
switch (*fmt) {
|
|
case 'c':
|
|
if (!(flags & LEFT))
|
|
while (--field_width > 0)
|
|
{
|
|
if (putc(' ', f) == EOF)
|
|
return -1;
|
|
done++;
|
|
}
|
|
if (qualifier == 'l' || qualifier == 'w')
|
|
{
|
|
if (putc((unsigned char)(wchar_t) va_arg(args, int), f) == EOF)
|
|
return -1;
|
|
done++;
|
|
}
|
|
else
|
|
{
|
|
if (putc((unsigned char) va_arg(args, int), f) == EOF)
|
|
return -1;
|
|
done++;
|
|
}
|
|
while (--field_width > 0)
|
|
{
|
|
if (putc(' ', f) == EOF)
|
|
return -1;
|
|
done++;
|
|
}
|
|
continue;
|
|
|
|
case 'C':
|
|
if (!(flags & LEFT))
|
|
while (--field_width > 0)
|
|
{
|
|
if (putc(' ', f) == EOF)
|
|
return -1;
|
|
done++;
|
|
}
|
|
if (qualifier == 'h')
|
|
{
|
|
if (putc((unsigned char) va_arg(args, int), f) == EOF)
|
|
return -1;
|
|
done++;
|
|
}
|
|
else
|
|
{
|
|
if (putc((unsigned char)(wchar_t) va_arg(args, int), f) == EOF)
|
|
return -1;
|
|
done++;
|
|
}
|
|
while (--field_width > 0)
|
|
{
|
|
if (putc(' ', f) == EOF)
|
|
return -1;
|
|
done++;
|
|
}
|
|
continue;
|
|
|
|
case 's':
|
|
if (qualifier == 'l' || qualifier == 'w') {
|
|
/* print unicode string */
|
|
sw = va_arg(args, wchar_t *);
|
|
result = stringw(f, sw, -1, field_width, precision, flags);
|
|
} else {
|
|
/* print ascii string */
|
|
s = va_arg(args, char *);
|
|
result = string(f, s, -1, field_width, precision, flags);
|
|
}
|
|
if (result < 0)
|
|
return -1;
|
|
done += result;
|
|
continue;
|
|
|
|
case 'S':
|
|
if (qualifier == 'h') {
|
|
/* print ascii string */
|
|
s = va_arg(args, char *);
|
|
result = string(f, s, -1, field_width, precision, flags);
|
|
} else {
|
|
/* print unicode string */
|
|
sw = va_arg(args, wchar_t *);
|
|
result = stringw(f, sw, -1, field_width, precision, flags);
|
|
}
|
|
if (result < 0)
|
|
return -1;
|
|
done += result;
|
|
continue;
|
|
|
|
case 'Z':
|
|
if (qualifier == 'w') {
|
|
/* print counted unicode string */
|
|
PUNICODE_STRING pus = va_arg(args, PUNICODE_STRING);
|
|
if ((pus == NULL) || (pus->Buffer == NULL)) {
|
|
sw = NULL;
|
|
len = -1;
|
|
} else {
|
|
sw = pus->Buffer;
|
|
len = pus->Length / sizeof(WCHAR);
|
|
}
|
|
result = stringw(f, sw, len, field_width, precision, flags);
|
|
} else {
|
|
/* print counted ascii string */
|
|
PANSI_STRING pas = va_arg(args, PANSI_STRING);
|
|
if ((pas == NULL) || (pas->Buffer == NULL)) {
|
|
s = NULL;
|
|
len = -1;
|
|
} else {
|
|
s = pas->Buffer;
|
|
len = pas->Length;
|
|
}
|
|
result = string(f, s, -1, field_width, precision, flags);
|
|
}
|
|
if (result < 0)
|
|
return -1;
|
|
done += result;
|
|
continue;
|
|
|
|
case 'e':
|
|
case 'E':
|
|
case 'f':
|
|
case 'g':
|
|
case 'G':
|
|
_double = (double)va_arg(args, double);
|
|
|
|
if ( _isnan(_double) ) {
|
|
s = "Nan";
|
|
len = 3;
|
|
while ( len > 0 ) {
|
|
if (putc(*s++,f) == EOF)
|
|
return -1;
|
|
done++;
|
|
len --;
|
|
}
|
|
} else if ( _isinf(_double) < 0 ) {
|
|
s = "-Inf";
|
|
len = 4;
|
|
while ( len > 0 ) {
|
|
if (putc(*s++,f) == EOF)
|
|
return -1;
|
|
done++;
|
|
len --;
|
|
}
|
|
} else if ( _isinf(_double) > 0 ) {
|
|
s = "+Inf";
|
|
len = 4;
|
|
while ( len > 0 ) {
|
|
if (putc(*s++,f) == EOF)
|
|
return -1;
|
|
done++;
|
|
len --;
|
|
}
|
|
} else {
|
|
if ( precision == -1 )
|
|
precision = 6;
|
|
result = numberf(f,_double,*fmt,field_width,precision,flags);
|
|
if (result < 0)
|
|
return -1;
|
|
done += result;
|
|
}
|
|
continue;
|
|
|
|
case 'p':
|
|
if (field_width == -1) {
|
|
field_width = 2*sizeof(void *);
|
|
flags |= ZEROPAD;
|
|
}
|
|
result = number(f,
|
|
(unsigned long) va_arg(args, void *), 16,
|
|
field_width, precision, flags);
|
|
if (result < 0)
|
|
return -1;
|
|
done += result;
|
|
continue;
|
|
|
|
case 'n':
|
|
if (qualifier == 'l') {
|
|
long * ip = va_arg(args, long *);
|
|
*ip = 0;
|
|
} else {
|
|
int * ip = va_arg(args, int *);
|
|
*ip = 0;
|
|
}
|
|
continue;
|
|
|
|
/* integer number formats - set up the flags and "break" */
|
|
case 'o':
|
|
base = 8;
|
|
break;
|
|
|
|
case 'b':
|
|
base = 2;
|
|
break;
|
|
|
|
case 'X':
|
|
flags |= LARGE;
|
|
case 'x':
|
|
base = 16;
|
|
break;
|
|
|
|
case 'd':
|
|
case 'i':
|
|
flags |= SIGN;
|
|
case 'u':
|
|
break;
|
|
|
|
default:
|
|
if (*fmt != '%')
|
|
{
|
|
if (putc('%', f) == EOF)
|
|
return -1;
|
|
done++;
|
|
}
|
|
if (*fmt)
|
|
{
|
|
if (putc(*fmt, f) == EOF)
|
|
return -1;
|
|
done++;
|
|
}
|
|
else
|
|
--fmt;
|
|
continue;
|
|
}
|
|
|
|
if (qualifier == 'I')
|
|
num = va_arg(args, ULONGLONG);
|
|
else if (qualifier == 'l') {
|
|
if (flags & SIGN)
|
|
num = va_arg(args, long);
|
|
else
|
|
num = va_arg(args, unsigned long);
|
|
}
|
|
else if (qualifier == 'h') {
|
|
if (flags & SIGN)
|
|
num = va_arg(args, int);
|
|
else
|
|
num = va_arg(args, unsigned int);
|
|
}
|
|
else if (flags & SIGN)
|
|
num = va_arg(args, int);
|
|
else
|
|
num = va_arg(args, unsigned int);
|
|
result = number(f, num, base, field_width, precision, flags);
|
|
if (result < 0)
|
|
return -1;
|
|
done += result;
|
|
}
|
|
//putc('\0',f);
|
|
return done;
|
|
}
|
|
|
|
/* EOF */
|