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![Katayama Hirofumi MZ](/assets/img/avatar_default.png)
Use safer string functions of <strsafe.h>. Use StringCbPrintf instead of _stprintf. Use StringCbCopy insteaad of _tcscpy. Use StringCbCat instead of _tcscat. CORE-19306
158 lines
4.6 KiB
C
158 lines
4.6 KiB
C
/*
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* ReactOS Calc (Utility functions for GMP/MPFR engine)
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*
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* Copyright 2007-2017, Carlo Bramini
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "calc.h"
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void prepare_rpn_result_2(calc_number_t *rpn, TCHAR *buffer, int size, int base)
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{
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char temp[1024];
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char *ptr, *dst;
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int width, max_ld_width;
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unsigned long int n, q;
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mpz_t zz;
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mpf_t ff;
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mpz_init(zz);
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mpf_init(ff);
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mpfr_get_z(zz, rpn->mf, MPFR_DEFAULT_RND);
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mpfr_get_f(ff, rpn->mf, MPFR_DEFAULT_RND);
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switch (base) {
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case IDC_RADIO_HEX:
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gmp_sprintf(temp, "%ZX", zz);
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break;
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case IDC_RADIO_DEC:
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/*
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* The output display is much shorter in standard mode,
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* so I'm forced to reduce the precision here :(
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*/
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if (calc.layout == CALC_LAYOUT_STANDARD)
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max_ld_width = 16;
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else
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max_ld_width = 64;
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/* calculate the width of integer number */
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if (mpf_sgn(ff) == 0)
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width = 1;
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else {
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mpfr_t t;
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mpfr_init(t);
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mpfr_abs(t, rpn->mf, MPFR_DEFAULT_RND);
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mpfr_log10(t, t, MPFR_DEFAULT_RND);
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width = 1 + mpfr_get_si(t, MPFR_DEFAULT_RND);
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mpfr_clear(t);
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}
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if (calc.sci_out == TRUE || width > max_ld_width || width < -max_ld_width)
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ptr = temp + gmp_sprintf(temp, "%*.*#Fe", 1, max_ld_width, ff);
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else {
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ptr = temp + gmp_sprintf(temp, "%#*.*Ff", width, ((max_ld_width-width-1)>=0) ? max_ld_width-width-1 : 0, ff);
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dst = strchr(temp, '.');
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while (--ptr > dst)
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if (*ptr != '0')
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break;
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/* put the string terminator for removing the final '0' (if any) */
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ptr[1] = '\0';
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/* check if the number finishes with '.' */
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if (ptr == dst)
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/* remove the dot (it will be re-added later) */
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ptr[0] = '\0';
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}
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break;
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case IDC_RADIO_OCT:
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gmp_sprintf(temp, "%Zo", zz);
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break;
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case IDC_RADIO_BIN:
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/* if the number is zero, just write 0 ;) */
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if (rpn_is_zero(rpn)) {
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temp[0] = _T('0');
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temp[1] = _T('\0');
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break;
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}
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/* repeat until a bit set to '1' is found */
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n = 0;
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do {
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q = mpz_scan1(zz, n);
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if (q == ULONG_MAX)
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break;
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while (n < q)
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temp[n++] = '0';
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temp[n++] = '1';
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} while (1);
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/* now revert the string into TCHAR buffer */
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for (q=0; q<n; q++)
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buffer[n-q-1] = (temp[q] == '1') ? _T('1') : _T('0');
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buffer[n] = _T('\0');
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mpz_clear(zz);
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mpf_clear(ff);
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return;
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}
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mpz_clear(zz);
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mpf_clear(ff);
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StringCchPrintf(buffer, size, _T("%hs"), temp);
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}
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void convert_text2number_2(calc_number_t *a)
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{
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int base;
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#ifdef UNICODE
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int sz;
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char *temp;
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#endif
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switch (calc.base) {
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case IDC_RADIO_HEX: base = 16; break;
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case IDC_RADIO_DEC: base = 10; break;
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case IDC_RADIO_OCT: base = 8; break;
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case IDC_RADIO_BIN: base = 2; break;
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default: return;
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}
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#ifdef UNICODE
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/*
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* libmpfr and libgmp accept only ascii chars.
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*/
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sz = WideCharToMultiByte(CP_ACP, 0, calc.buffer, -1, NULL, 0, NULL, NULL);
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if (!sz)
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return;
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temp = (char *)_alloca(sz);
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sz = WideCharToMultiByte(CP_ACP, 0, calc.buffer, -1, temp, sz, NULL, NULL);
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mpfr_strtofr(a->mf, temp, NULL, base, MPFR_DEFAULT_RND);
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#else
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mpfr_strtofr(a->mf, calc.buffer, NULL, base, MPFR_DEFAULT_RND);
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#endif
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}
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void convert_real_integer(unsigned int base)
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{
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switch (base) {
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case IDC_RADIO_DEC:
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break;
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case IDC_RADIO_OCT:
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case IDC_RADIO_BIN:
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case IDC_RADIO_HEX:
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if (calc.base == IDC_RADIO_DEC) {
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mpfr_trunc(calc.code.mf, calc.code.mf);
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apply_int_mask(&calc.code);
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}
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break;
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}
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}
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