diff options
Diffstat (limited to 'winsup/mingw/mingwex/gdtoa/hexnan.c')
| -rwxr-xr-x | winsup/mingw/mingwex/gdtoa/hexnan.c | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/winsup/mingw/mingwex/gdtoa/hexnan.c b/winsup/mingw/mingwex/gdtoa/hexnan.c deleted file mode 100755 index 4fa4c7745..000000000 --- a/winsup/mingw/mingwex/gdtoa/hexnan.c +++ /dev/null @@ -1,139 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 2000 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - -static void L_shift (ULong *x, ULong *x1, int i) -{ - int j; - - i = 8 - i; - i <<= 2; - j = ULbits - i; - do { - *x |= x[1] << j; - x[1] >>= i; - } while(++x < x1); -} - -int hexnan (const char **sp, FPI *fpi, ULong *x0) -{ - ULong c, h, *x, *x1, *xe; - const char *s; - int havedig, hd0, i, nbits; - - if (!hexdig['0']) - hexdig_init_D2A(); - nbits = fpi->nbits; - x = x0 + (nbits >> kshift); - if (nbits & kmask) - x++; - *--x = 0; - x1 = xe = x; - havedig = hd0 = i = 0; - s = *sp; - /* allow optional initial 0x or 0X */ - while((c = *(const unsigned char*)(s+1)) && c <= ' ') - ++s; - if (s[1] == '0' && (s[2] == 'x' || s[2] == 'X') - && *(const unsigned char*)(s+3) > ' ') - s += 2; - while((c = *(const unsigned char*)++s)) { - if (!(h = hexdig[c])) { - if (c <= ' ') { - if (hd0 < havedig) { - if (x < x1 && i < 8) - L_shift(x, x1, i); - if (x <= x0) { - i = 8; - continue; - } - hd0 = havedig; - *--x = 0; - x1 = x; - i = 0; - } - while(*(const unsigned char*)(s+1) <= ' ') - ++s; - if (s[1] == '0' && (s[2] == 'x' || s[2] == 'X') - && *(const unsigned char*)(s+3) > ' ') - s += 2; - continue; - } - if (/*(*/ c == ')' && havedig) { - *sp = s + 1; - break; - } -#ifndef GDTOA_NON_PEDANTIC_NANCHECK - do { - if (/*(*/ c == ')') { - *sp = s + 1; - break; - } - } while((c = *++s)); -#endif - return STRTOG_NaN; - } - havedig++; - if (++i > 8) { - if (x <= x0) - continue; - i = 1; - *--x = 0; - } - *x = (*x << 4) | (h & 0xf); - } - if (!havedig) - return STRTOG_NaN; - if (x < x1 && i < 8) - L_shift(x, x1, i); - if (x > x0) { - x1 = x0; - do *x1++ = *x++; - while(x <= xe); - do *x1++ = 0; - while(x1 <= xe); - } - else { - /* truncate high-order word if necessary */ - if ( (i = nbits & (ULbits-1)) !=0) - *xe &= ((ULong)0xffffffff) >> (ULbits - i); - } - for(x1 = xe;; --x1) { - if (*x1 != 0) - break; - if (x1 == x0) { - *x1 = 1; - break; - } - } - return STRTOG_NaNbits; -} |