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81 lines
1.5 KiB
C
81 lines
1.5 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS system libraries
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* FILE: lib/msvcrt/stdlib/itoa.c
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* PURPOSE: converts a integer to ascii
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* PROGRAMER:
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* UPDATE HISTORY:
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* 1995: Created
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* 1998: Added ltoa by Ariadne
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* 2006 : replace all api in this file to wine cvs 2006-05-21
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*/
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/* */
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#include <precomp.h>
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/*
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* @implemented
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* copy _i64toa from wine cvs 2006 month 05 day 21
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*/
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char* _i64toa(__int64 value, char* string, int radix)
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{
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ULONGLONG val;
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int negative;
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char buffer[65];
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char *pos;
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int digit;
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if (value < 0 && radix == 10) {
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negative = 1;
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val = -value;
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} else {
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negative = 0;
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val = value;
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} /* if */
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pos = &buffer[64];
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*pos = '\0';
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do {
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digit = val % radix;
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val = val / radix;
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if (digit < 10) {
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*--pos = '0' + digit;
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} else {
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*--pos = 'a' + digit - 10;
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} /* if */
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} while (val != 0L);
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if (negative) {
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*--pos = '-';
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} /* if */
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memcpy(string, pos, &buffer[64] - pos + 1);
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return string;
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}
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/*
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* @implemented
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*/
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char* _ui64toa(unsigned __int64 value, char* string, int radix)
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{
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char buffer[65];
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char *pos;
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int digit;
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pos = &buffer[64];
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*pos = '\0';
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do {
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digit = value % radix;
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value = value / radix;
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if (digit < 10) {
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*--pos = '0' + digit;
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} else {
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*--pos = 'a' + digit - 10;
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} /* if */
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} while (value != 0L);
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memcpy(string, pos, &buffer[64] - pos + 1);
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return string;
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}
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