| /* |
| * msvcrt.dll math functions |
| * |
| * Copyright 2000 Jon Griffiths |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA |
| */ |
| #include "config.h" |
| |
| #include <stdio.h> |
| #define __USE_ISOC9X 1 |
| #define __USE_ISOC99 1 |
| #include <math.h> |
| #ifdef HAVE_IEEEFP_H |
| #include <ieeefp.h> |
| #endif |
| |
| #include "msvcrt.h" |
| |
| #include "wine/debug.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(msvcrt); |
| |
| #ifndef HAVE_FINITE |
| #ifndef finite /* Could be a macro */ |
| #ifdef isfinite |
| #define finite(x) isfinite(x) |
| #else |
| #define finite(x) (!isnan(x)) /* At least catch some cases */ |
| #endif |
| #endif |
| #endif |
| |
| #ifndef signbit |
| #define signbit(x) 0 |
| #endif |
| |
| typedef int (*MSVCRT_matherr_func)(struct MSVCRT__exception *); |
| |
| static MSVCRT_matherr_func MSVCRT_default_matherr_func = NULL; |
| |
| /********************************************************************* |
| * MSVCRT_acos (MSVCRT.@) |
| */ |
| double CDECL MSVCRT_acos( double x ) |
| { |
| if (x < -1.0 || x > 1.0 || !finite(x)) *MSVCRT__errno() = MSVCRT_EDOM; |
| return acos(x); |
| } |
| |
| /********************************************************************* |
| * MSVCRT_asin (MSVCRT.@) |
| */ |
| double CDECL MSVCRT_asin( double x ) |
| { |
| if (x < -1.0 || x > 1.0 || !finite(x)) *MSVCRT__errno() = MSVCRT_EDOM; |
| return asin(x); |
| } |
| |
| /********************************************************************* |
| * MSVCRT_atan (MSVCRT.@) |
| */ |
| double CDECL MSVCRT_atan( double x ) |
| { |
| if (!finite(x)) *MSVCRT__errno() = MSVCRT_EDOM; |
| return atan(x); |
| } |
| |
| /********************************************************************* |
| * MSVCRT_atan2 (MSVCRT.@) |
| */ |
| double CDECL MSVCRT_atan2( double x, double y ) |
| { |
| if (!finite(x)) *MSVCRT__errno() = MSVCRT_EDOM; |
| return atan2(x,y); |
| } |
| |
| /********************************************************************* |
| * MSVCRT_cos (MSVCRT.@) |
| */ |
| double CDECL MSVCRT_cos( double x ) |
| { |
| if (!finite(x)) *MSVCRT__errno() = MSVCRT_EDOM; |
| return cos(x); |
| } |
| |
| /********************************************************************* |
| * MSVCRT_cosh (MSVCRT.@) |
| */ |
| double CDECL MSVCRT_cosh( double x ) |
| { |
| if (!finite(x)) *MSVCRT__errno() = MSVCRT_EDOM; |
| return cosh(x); |
| } |
| |
| /********************************************************************* |
| * MSVCRT_exp (MSVCRT.@) |
| */ |
| double CDECL MSVCRT_exp( double x ) |
| { |
| if (!finite(x)) *MSVCRT__errno() = MSVCRT_EDOM; |
| return exp(x); |
| } |
| |
| /********************************************************************* |
| * MSVCRT_fmod (MSVCRT.@) |
| */ |
| double CDECL MSVCRT_fmod( double x, double y ) |
| { |
| if (!finite(x) || !finite(y)) *MSVCRT__errno() = MSVCRT_EDOM; |
| return fmod(x,y); |
| } |
| |
| /********************************************************************* |
| * MSVCRT_log (MSVCRT.@) |
| */ |
| double CDECL MSVCRT_log( double x) |
| { |
| if (x < 0.0 || !finite(x)) *MSVCRT__errno() = MSVCRT_EDOM; |
| if (x == 0.0) *MSVCRT__errno() = MSVCRT_ERANGE; |
| return log(x); |
| } |
| |
| /********************************************************************* |
| * MSVCRT_log10 (MSVCRT.@) |
| */ |
| double CDECL MSVCRT_log10( double x ) |
| { |
| if (x < 0.0 || !finite(x)) *MSVCRT__errno() = MSVCRT_EDOM; |
| if (x == 0.0) *MSVCRT__errno() = MSVCRT_ERANGE; |
| return log10(x); |
| } |
| |
| /********************************************************************* |
| * MSVCRT_pow (MSVCRT.@) |
| */ |
| double CDECL MSVCRT_pow( double x, double y ) |
| { |
| /* FIXME: If x < 0 and y is not integral, set EDOM */ |
| double z = pow(x,y); |
| if (!finite(z)) *MSVCRT__errno() = MSVCRT_EDOM; |
| return z; |
| } |
| |
| /********************************************************************* |
| * MSVCRT_sin (MSVCRT.@) |
| */ |
| double CDECL MSVCRT_sin( double x ) |
| { |
| if (!finite(x)) *MSVCRT__errno() = MSVCRT_EDOM; |
| return sin(x); |
| } |
| |
| /********************************************************************* |
| * MSVCRT_sinh (MSVCRT.@) |
| */ |
| double CDECL MSVCRT_sinh( double x ) |
| { |
| if (!finite(x)) *MSVCRT__errno() = MSVCRT_EDOM; |
| return sinh(x); |
| } |
| |
| /********************************************************************* |
| * MSVCRT_sqrt (MSVCRT.@) |
| */ |
| double CDECL MSVCRT_sqrt( double x ) |
| { |
| if (x < 0.0 || !finite(x)) *MSVCRT__errno() = MSVCRT_EDOM; |
| return sqrt(x); |
| } |
| |
| /********************************************************************* |
| * MSVCRT_tan (MSVCRT.@) |
| */ |
| double CDECL MSVCRT_tan( double x ) |
| { |
| if (!finite(x)) *MSVCRT__errno() = MSVCRT_EDOM; |
| return tan(x); |
| } |
| |
| /********************************************************************* |
| * MSVCRT_tanh (MSVCRT.@) |
| */ |
| double CDECL MSVCRT_tanh( double x ) |
| { |
| if (!finite(x)) *MSVCRT__errno() = MSVCRT_EDOM; |
| return tanh(x); |
| } |
| |
| |
| #if defined(__GNUC__) && defined(__i386__) |
| |
| #define FPU_DOUBLE(var) double var; \ |
| __asm__ __volatile__( "fstpl %0;fwait" : "=m" (var) : ) |
| #define FPU_DOUBLES(var1,var2) double var1,var2; \ |
| __asm__ __volatile__( "fstpl %0;fwait" : "=m" (var2) : ); \ |
| __asm__ __volatile__( "fstpl %0;fwait" : "=m" (var1) : ) |
| |
| /********************************************************************* |
| * _CIacos (MSVCRT.@) |
| */ |
| double CDECL _CIacos(void) |
| { |
| FPU_DOUBLE(x); |
| return MSVCRT_acos(x); |
| } |
| |
| /********************************************************************* |
| * _CIasin (MSVCRT.@) |
| */ |
| double CDECL _CIasin(void) |
| { |
| FPU_DOUBLE(x); |
| return MSVCRT_asin(x); |
| } |
| |
| /********************************************************************* |
| * _CIatan (MSVCRT.@) |
| */ |
| double CDECL _CIatan(void) |
| { |
| FPU_DOUBLE(x); |
| return MSVCRT_atan(x); |
| } |
| |
| /********************************************************************* |
| * _CIatan2 (MSVCRT.@) |
| */ |
| double CDECL _CIatan2(void) |
| { |
| FPU_DOUBLES(x,y); |
| return MSVCRT_atan2(x,y); |
| } |
| |
| /********************************************************************* |
| * _CIcos (MSVCRT.@) |
| */ |
| double CDECL _CIcos(void) |
| { |
| FPU_DOUBLE(x); |
| return MSVCRT_cos(x); |
| } |
| |
| /********************************************************************* |
| * _CIcosh (MSVCRT.@) |
| */ |
| double CDECL _CIcosh(void) |
| { |
| FPU_DOUBLE(x); |
| return MSVCRT_cosh(x); |
| } |
| |
| /********************************************************************* |
| * _CIexp (MSVCRT.@) |
| */ |
| double CDECL _CIexp(void) |
| { |
| FPU_DOUBLE(x); |
| return MSVCRT_exp(x); |
| } |
| |
| /********************************************************************* |
| * _CIfmod (MSVCRT.@) |
| */ |
| double CDECL _CIfmod(void) |
| { |
| FPU_DOUBLES(x,y); |
| return MSVCRT_fmod(x,y); |
| } |
| |
| /********************************************************************* |
| * _CIlog (MSVCRT.@) |
| */ |
| double CDECL _CIlog(void) |
| { |
| FPU_DOUBLE(x); |
| return MSVCRT_log(x); |
| } |
| |
| /********************************************************************* |
| * _CIlog10 (MSVCRT.@) |
| */ |
| double CDECL _CIlog10(void) |
| { |
| FPU_DOUBLE(x); |
| return MSVCRT_log10(x); |
| } |
| |
| /********************************************************************* |
| * _CIpow (MSVCRT.@) |
| */ |
| double CDECL _CIpow(void) |
| { |
| FPU_DOUBLES(x,y); |
| return MSVCRT_pow(x,y); |
| } |
| |
| /********************************************************************* |
| * _CIsin (MSVCRT.@) |
| */ |
| double CDECL _CIsin(void) |
| { |
| FPU_DOUBLE(x); |
| return MSVCRT_sin(x); |
| } |
| |
| /********************************************************************* |
| * _CIsinh (MSVCRT.@) |
| */ |
| double CDECL _CIsinh(void) |
| { |
| FPU_DOUBLE(x); |
| return MSVCRT_sinh(x); |
| } |
| |
| /********************************************************************* |
| * _CIsqrt (MSVCRT.@) |
| */ |
| double CDECL _CIsqrt(void) |
| { |
| FPU_DOUBLE(x); |
| return MSVCRT_sqrt(x); |
| } |
| |
| /********************************************************************* |
| * _CItan (MSVCRT.@) |
| */ |
| double CDECL _CItan(void) |
| { |
| FPU_DOUBLE(x); |
| return MSVCRT_tan(x); |
| } |
| |
| /********************************************************************* |
| * _CItanh (MSVCRT.@) |
| */ |
| double CDECL _CItanh(void) |
| { |
| FPU_DOUBLE(x); |
| return MSVCRT_tanh(x); |
| } |
| |
| #else /* defined(__GNUC__) && defined(__i386__) */ |
| |
| /* The above cannot be called on non x86 platforms, stub them for linking */ |
| |
| #define IX86_ONLY(func) double func(void) { return 0.0; } |
| |
| IX86_ONLY(_CIacos) |
| IX86_ONLY(_CIasin) |
| IX86_ONLY(_CIatan) |
| IX86_ONLY(_CIatan2) |
| IX86_ONLY(_CIcos) |
| IX86_ONLY(_CIcosh) |
| IX86_ONLY(_CIexp) |
| IX86_ONLY(_CIfmod) |
| IX86_ONLY(_CIlog) |
| IX86_ONLY(_CIlog10) |
| IX86_ONLY(_CIpow) |
| IX86_ONLY(_CIsin) |
| IX86_ONLY(_CIsinh) |
| IX86_ONLY(_CIsqrt) |
| IX86_ONLY(_CItan) |
| IX86_ONLY(_CItanh) |
| |
| #endif /* defined(__GNUC__) && defined(__i386__) */ |
| |
| /********************************************************************* |
| * _fpclass (MSVCRT.@) |
| */ |
| int CDECL _fpclass(double num) |
| { |
| #if defined(HAVE_FPCLASS) || defined(fpclass) |
| switch (fpclass( num )) |
| { |
| #ifdef FP_SNAN |
| case FP_SNAN: return MSVCRT__FPCLASS_SNAN; |
| #endif |
| #ifdef FP_QNAN |
| case FP_QNAN: return MSVCRT__FPCLASS_QNAN; |
| #endif |
| #ifdef FP_NINF |
| case FP_NINF: return MSVCRT__FPCLASS_NINF; |
| #endif |
| #ifdef FP_PINF |
| case FP_PINF: return MSVCRT__FPCLASS_PINF; |
| #endif |
| #ifdef FP_NDENORM |
| case FP_NDENORM: return MSVCRT__FPCLASS_ND; |
| #endif |
| #ifdef FP_PDENORM |
| case FP_PDENORM: return MSVCRT__FPCLASS_PD; |
| #endif |
| #ifdef FP_NZERO |
| case FP_NZERO: return MSVCRT__FPCLASS_NZ; |
| #endif |
| #ifdef FP_PZERO |
| case FP_PZERO: return MSVCRT__FPCLASS_PZ; |
| #endif |
| #ifdef FP_NNORM |
| case FP_NNORM: return MSVCRT__FPCLASS_NN; |
| #endif |
| #ifdef FP_PNORM |
| case FP_PNORM: return MSVCRT__FPCLASS_PN; |
| #endif |
| } |
| return MSVCRT__FPCLASS_PN; |
| #elif defined (fpclassify) |
| switch (fpclassify( num )) |
| { |
| case FP_NAN: return MSVCRT__FPCLASS_QNAN; |
| case FP_INFINITE: return signbit(num) ? MSVCRT__FPCLASS_NINF : MSVCRT__FPCLASS_PINF; |
| case FP_SUBNORMAL: return signbit(num) ?MSVCRT__FPCLASS_ND : MSVCRT__FPCLASS_PD; |
| case FP_ZERO: return signbit(num) ? MSVCRT__FPCLASS_NZ : MSVCRT__FPCLASS_PZ; |
| } |
| return signbit(num) ? MSVCRT__FPCLASS_NN : MSVCRT__FPCLASS_PN; |
| #else |
| if (!finite(num)) |
| return MSVCRT__FPCLASS_QNAN; |
| return num == 0.0 ? MSVCRT__FPCLASS_PZ : (num < 0 ? MSVCRT__FPCLASS_NN : MSVCRT__FPCLASS_PN); |
| #endif |
| } |
| |
| /********************************************************************* |
| * _rotl (MSVCRT.@) |
| */ |
| unsigned int CDECL _rotl(unsigned int num, int shift) |
| { |
| shift &= 31; |
| return (num << shift) | (num >> (32-shift)); |
| } |
| |
| /********************************************************************* |
| * _logb (MSVCRT.@) |
| */ |
| double CDECL _logb(double num) |
| { |
| if (!finite(num)) *MSVCRT__errno() = MSVCRT_EDOM; |
| return logb(num); |
| } |
| |
| /********************************************************************* |
| * _lrotl (MSVCRT.@) |
| */ |
| unsigned long CDECL _lrotl(unsigned long num, int shift) |
| { |
| shift &= 0x1f; |
| return (num << shift) | (num >> (32-shift)); |
| } |
| |
| /********************************************************************* |
| * _lrotr (MSVCRT.@) |
| */ |
| unsigned long CDECL _lrotr(unsigned long num, int shift) |
| { |
| shift &= 0x1f; |
| return (num >> shift) | (num << (32-shift)); |
| } |
| |
| /********************************************************************* |
| * _rotr (MSVCRT.@) |
| */ |
| unsigned int CDECL _rotr(unsigned int num, int shift) |
| { |
| shift &= 0x1f; |
| return (num >> shift) | (num << (32-shift)); |
| } |
| |
| /********************************************************************* |
| * _scalb (MSVCRT.@) |
| */ |
| double CDECL _scalb(double num, long power) |
| { |
| /* Note - Can't forward directly as libc expects y as double */ |
| double dblpower = (double)power; |
| if (!finite(num)) *MSVCRT__errno() = MSVCRT_EDOM; |
| return scalb(num, dblpower); |
| } |
| |
| /********************************************************************* |
| * _hypot (MSVCRT.@) |
| */ |
| double CDECL _hypot(double x, double y) |
| { |
| /* FIXME: errno handling */ |
| return hypot( x, y ); |
| } |
| |
| /********************************************************************* |
| * ceil (MSVCRT.@) |
| */ |
| double CDECL MSVCRT_ceil( double x ) |
| { |
| return ceil(x); |
| } |
| |
| /********************************************************************* |
| * floor (MSVCRT.@) |
| */ |
| double CDECL MSVCRT_floor( double x ) |
| { |
| return floor(x); |
| } |
| |
| /********************************************************************* |
| * fabs (MSVCRT.@) |
| */ |
| double CDECL MSVCRT_fabs( double x ) |
| { |
| return fabs(x); |
| } |
| |
| /********************************************************************* |
| * frexp (MSVCRT.@) |
| */ |
| double CDECL MSVCRT_frexp( double x, int *exp ) |
| { |
| return frexp( x, exp ); |
| } |
| |
| /********************************************************************* |
| * modf (MSVCRT.@) |
| */ |
| double CDECL MSVCRT_modf( double x, double *iptr ) |
| { |
| return modf( x, iptr ); |
| } |
| |
| /********************************************************************* |
| * _matherr (MSVCRT.@) |
| */ |
| int CDECL MSVCRT__matherr(struct MSVCRT__exception *e) |
| { |
| if (e) |
| TRACE("(%p = %d, %s, %g %g %g)\n",e, e->type, e->name, e->arg1, e->arg2, |
| e->retval); |
| else |
| TRACE("(null)\n"); |
| if (MSVCRT_default_matherr_func) |
| return MSVCRT_default_matherr_func(e); |
| ERR(":Unhandled math error!\n"); |
| return 0; |
| } |
| |
| /********************************************************************* |
| * __setusermatherr (MSVCRT.@) |
| */ |
| void CDECL MSVCRT___setusermatherr(MSVCRT_matherr_func func) |
| { |
| MSVCRT_default_matherr_func = func; |
| TRACE(":new matherr handler %p\n", func); |
| } |
| |
| /********************************************************************** |
| * _statusfp (MSVCRT.@) |
| */ |
| unsigned int CDECL _statusfp(void) |
| { |
| unsigned int retVal = 0; |
| #if defined(__GNUC__) && defined(__i386__) |
| unsigned int fpword; |
| |
| __asm__ __volatile__( "fstsw %0" : "=m" (fpword) : ); |
| if (fpword & 0x1) retVal |= MSVCRT__SW_INVALID; |
| if (fpword & 0x2) retVal |= MSVCRT__SW_DENORMAL; |
| if (fpword & 0x4) retVal |= MSVCRT__SW_ZERODIVIDE; |
| if (fpword & 0x8) retVal |= MSVCRT__SW_OVERFLOW; |
| if (fpword & 0x10) retVal |= MSVCRT__SW_UNDERFLOW; |
| if (fpword & 0x20) retVal |= MSVCRT__SW_INEXACT; |
| #else |
| FIXME(":Not implemented!\n"); |
| #endif |
| return retVal; |
| } |
| |
| /********************************************************************* |
| * _clearfp (MSVCRT.@) |
| */ |
| unsigned int CDECL _clearfp(void) |
| { |
| unsigned int retVal = _statusfp(); |
| #if defined(__GNUC__) && defined(__i386__) |
| __asm__ __volatile__( "fnclex" ); |
| #else |
| FIXME(":Not Implemented\n"); |
| #endif |
| return retVal; |
| } |
| |
| /********************************************************************* |
| * __fpecode (MSVCRT.@) |
| */ |
| int * CDECL __fpecode(void) |
| { |
| return &msvcrt_get_thread_data()->fpecode; |
| } |
| |
| /********************************************************************* |
| * ldexp (MSVCRT.@) |
| */ |
| double CDECL MSVCRT_ldexp(double num, long exp) |
| { |
| double z = ldexp(num,exp); |
| |
| if (!finite(z)) |
| *MSVCRT__errno() = MSVCRT_ERANGE; |
| else if (z == 0 && signbit(z)) |
| z = 0.0; /* Convert -0 -> +0 */ |
| return z; |
| } |
| |
| /********************************************************************* |
| * _cabs (MSVCRT.@) |
| */ |
| double CDECL MSVCRT__cabs(struct MSVCRT__complex num) |
| { |
| return sqrt(num.x * num.x + num.y * num.y); |
| } |
| |
| /********************************************************************* |
| * _chgsign (MSVCRT.@) |
| */ |
| double CDECL _chgsign(double num) |
| { |
| /* FIXME: +-infinity,Nan not tested */ |
| return -num; |
| } |
| |
| /********************************************************************* |
| * _control87 (MSVCRT.@) |
| */ |
| unsigned int CDECL _control87(unsigned int newval, unsigned int mask) |
| { |
| #if defined(__GNUC__) && defined(__i386__) |
| unsigned int fpword = 0; |
| unsigned int flags = 0; |
| |
| TRACE("(%08x, %08x): Called\n", newval, mask); |
| |
| /* Get fp control word */ |
| __asm__ __volatile__( "fstcw %0" : "=m" (fpword) : ); |
| |
| TRACE("Control word before : %08x\n", fpword); |
| |
| /* Convert into mask constants */ |
| if (fpword & 0x1) flags |= MSVCRT__EM_INVALID; |
| if (fpword & 0x2) flags |= MSVCRT__EM_DENORMAL; |
| if (fpword & 0x4) flags |= MSVCRT__EM_ZERODIVIDE; |
| if (fpword & 0x8) flags |= MSVCRT__EM_OVERFLOW; |
| if (fpword & 0x10) flags |= MSVCRT__EM_UNDERFLOW; |
| if (fpword & 0x20) flags |= MSVCRT__EM_INEXACT; |
| switch(fpword & 0xC00) { |
| case 0xC00: flags |= MSVCRT__RC_UP|MSVCRT__RC_DOWN; break; |
| case 0x800: flags |= MSVCRT__RC_UP; break; |
| case 0x400: flags |= MSVCRT__RC_DOWN; break; |
| } |
| switch(fpword & 0x300) { |
| case 0x0: flags |= MSVCRT__PC_24; break; |
| case 0x200: flags |= MSVCRT__PC_53; break; |
| case 0x300: flags |= MSVCRT__PC_64; break; |
| } |
| if (fpword & 0x1000) flags |= MSVCRT__IC_AFFINE; |
| |
| /* Mask with parameters */ |
| flags = (flags & ~mask) | (newval & mask); |
| |
| /* Convert (masked) value back to fp word */ |
| fpword = 0; |
| if (flags & MSVCRT__EM_INVALID) fpword |= 0x1; |
| if (flags & MSVCRT__EM_DENORMAL) fpword |= 0x2; |
| if (flags & MSVCRT__EM_ZERODIVIDE) fpword |= 0x4; |
| if (flags & MSVCRT__EM_OVERFLOW) fpword |= 0x8; |
| if (flags & MSVCRT__EM_UNDERFLOW) fpword |= 0x10; |
| if (flags & MSVCRT__EM_INEXACT) fpword |= 0x20; |
| switch(flags & (MSVCRT__RC_UP | MSVCRT__RC_DOWN)) { |
| case MSVCRT__RC_UP|MSVCRT__RC_DOWN: fpword |= 0xC00; break; |
| case MSVCRT__RC_UP: fpword |= 0x800; break; |
| case MSVCRT__RC_DOWN: fpword |= 0x400; break; |
| } |
| switch (flags & (MSVCRT__PC_24 | MSVCRT__PC_53)) { |
| case MSVCRT__PC_64: fpword |= 0x300; break; |
| case MSVCRT__PC_53: fpword |= 0x200; break; |
| case MSVCRT__PC_24: fpword |= 0x0; break; |
| } |
| if (flags & MSVCRT__IC_AFFINE) fpword |= 0x1000; |
| |
| TRACE("Control word after : %08x\n", fpword); |
| |
| /* Put fp control word */ |
| __asm__ __volatile__( "fldcw %0" : : "m" (fpword) ); |
| |
| return flags; |
| #else |
| FIXME(":Not Implemented!\n"); |
| return 0; |
| #endif |
| } |
| |
| /********************************************************************* |
| * _controlfp (MSVCRT.@) |
| */ |
| unsigned int CDECL _controlfp(unsigned int newval, unsigned int mask) |
| { |
| #ifdef __i386__ |
| return _control87( newval, mask & ~MSVCRT__EM_DENORMAL ); |
| #else |
| FIXME(":Not Implemented!\n"); |
| return 0; |
| #endif |
| } |
| |
| /********************************************************************* |
| * _copysign (MSVCRT.@) |
| */ |
| double CDECL _copysign(double num, double sign) |
| { |
| /* FIXME: Behaviour for Nan/Inf? */ |
| if (sign < 0.0) |
| return num < 0.0 ? num : -num; |
| return num < 0.0 ? -num : num; |
| } |
| |
| /********************************************************************* |
| * _finite (MSVCRT.@) |
| */ |
| int CDECL _finite(double num) |
| { |
| return (finite(num)?1:0); /* See comment for _isnan() */ |
| } |
| |
| /********************************************************************* |
| * _fpreset (MSVCRT.@) |
| */ |
| void CDECL _fpreset(void) |
| { |
| #if defined(__GNUC__) && defined(__i386__) |
| __asm__ __volatile__( "fninit" ); |
| #else |
| FIXME(":Not Implemented!\n"); |
| #endif |
| } |
| |
| /********************************************************************* |
| * _isnan (MSVCRT.@) |
| */ |
| INT CDECL _isnan(double num) |
| { |
| /* Some implementations return -1 for true(glibc), msvcrt/crtdll return 1. |
| * Do the same, as the result may be used in calculations |
| */ |
| return isnan(num) ? 1 : 0; |
| } |
| |
| /********************************************************************* |
| * _j0 (MSVCRT.@) |
| */ |
| double CDECL _j0(double num) |
| { |
| /* FIXME: errno handling */ |
| return j0(num); |
| } |
| |
| /********************************************************************* |
| * _j1 (MSVCRT.@) |
| */ |
| double CDECL _j1(double num) |
| { |
| /* FIXME: errno handling */ |
| return j1(num); |
| } |
| |
| /********************************************************************* |
| * jn (MSVCRT.@) |
| */ |
| double CDECL _jn(int n, double num) |
| { |
| /* FIXME: errno handling */ |
| return jn(n, num); |
| } |
| |
| /********************************************************************* |
| * _y0 (MSVCRT.@) |
| */ |
| double CDECL _y0(double num) |
| { |
| double retval; |
| if (!finite(num)) *MSVCRT__errno() = MSVCRT_EDOM; |
| retval = y0(num); |
| if (_fpclass(retval) == MSVCRT__FPCLASS_NINF) |
| { |
| *MSVCRT__errno() = MSVCRT_EDOM; |
| retval = sqrt(-1); |
| } |
| return retval; |
| } |
| |
| /********************************************************************* |
| * _y1 (MSVCRT.@) |
| */ |
| double CDECL _y1(double num) |
| { |
| double retval; |
| if (!finite(num)) *MSVCRT__errno() = MSVCRT_EDOM; |
| retval = y1(num); |
| if (_fpclass(retval) == MSVCRT__FPCLASS_NINF) |
| { |
| *MSVCRT__errno() = MSVCRT_EDOM; |
| retval = sqrt(-1); |
| } |
| return retval; |
| } |
| |
| /********************************************************************* |
| * _yn (MSVCRT.@) |
| */ |
| double CDECL _yn(int order, double num) |
| { |
| double retval; |
| if (!finite(num)) *MSVCRT__errno() = MSVCRT_EDOM; |
| retval = yn(order,num); |
| if (_fpclass(retval) == MSVCRT__FPCLASS_NINF) |
| { |
| *MSVCRT__errno() = MSVCRT_EDOM; |
| retval = sqrt(-1); |
| } |
| return retval; |
| } |
| |
| /********************************************************************* |
| * _nextafter (MSVCRT.@) |
| */ |
| double CDECL _nextafter(double num, double next) |
| { |
| double retval; |
| if (!finite(num) || !finite(next)) *MSVCRT__errno() = MSVCRT_EDOM; |
| retval = nextafter(num,next); |
| return retval; |
| } |
| |
| /********************************************************************* |
| * _ecvt (MSVCRT.@) |
| */ |
| char * CDECL _ecvt( double number, int ndigits, int *decpt, int *sign ) |
| { |
| thread_data_t *data = msvcrt_get_thread_data(); |
| char *dec; |
| |
| if (!data->efcvt_buffer) |
| data->efcvt_buffer = MSVCRT_malloc( 80 ); /* ought to be enough */ |
| |
| snprintf(data->efcvt_buffer, 80, "%.*e", ndigits /* FIXME wrong */, number); |
| *sign = (number < 0); |
| dec = strchr(data->efcvt_buffer, '.'); |
| *decpt = (dec) ? dec - data->efcvt_buffer : -1; |
| return data->efcvt_buffer; |
| } |
| |
| /*********************************************************************** |
| * _fcvt (MSVCRT.@) |
| */ |
| char * CDECL _fcvt( double number, int ndigits, int *decpt, int *sign ) |
| { |
| thread_data_t *data = msvcrt_get_thread_data(); |
| int stop, dec1, dec2; |
| char *ptr1, *ptr2, *first; |
| char buf[80]; /* ought to be enough */ |
| |
| if (!data->efcvt_buffer) |
| data->efcvt_buffer = MSVCRT_malloc( 80 ); /* ought to be enough */ |
| |
| if (number < 0) |
| { |
| *sign = 1; |
| number = -number; |
| } else *sign = 0; |
| |
| snprintf(buf, 80, "%.*f", ndigits < 0 ? 0 : ndigits, number); |
| ptr1 = buf; |
| ptr2 = data->efcvt_buffer; |
| first = NULL; |
| dec1 = 0; |
| dec2 = 0; |
| |
| /* For numbers below the requested resolution, work out where |
| the decimal point will be rather than finding it in the string */ |
| if (number < 1.0 && number > 0.0) { |
| dec2 = log10(number + 1e-10); |
| if (-dec2 <= ndigits) dec2 = 0; |
| } |
| |
| /* If requested digits is zero or less, we will need to truncate |
| * the returned string */ |
| if (ndigits < 1) { |
| stop = strlen(buf) + ndigits; |
| } else { |
| stop = strlen(buf); |
| } |
| |
| while (*ptr1 == '0') ptr1++; /* Skip leading zeroes */ |
| while (*ptr1 != '\0' && *ptr1 != '.') { |
| if (!first) first = ptr2; |
| if ((ptr1 - buf) < stop) { |
| *ptr2++ = *ptr1++; |
| } else { |
| ptr1++; |
| } |
| dec1++; |
| } |
| |
| if (ndigits > 0) { |
| ptr1++; |
| if (!first) { |
| while (*ptr1 == '0') { /* Process leading zeroes */ |
| *ptr2++ = *ptr1++; |
| dec1--; |
| } |
| } |
| while (*ptr1 != '\0') { |
| if (!first) first = ptr2; |
| *ptr2++ = *ptr1++; |
| } |
| } |
| |
| *ptr2 = '\0'; |
| |
| /* We never found a non-zero digit, then our number is either |
| * smaller than the requested precision, or 0.0 */ |
| if (!first) { |
| if (number > 0.0) { |
| first = ptr2; |
| } else { |
| first = data->efcvt_buffer; |
| dec1 = 0; |
| } |
| } |
| |
| *decpt = dec2 ? dec2 : dec1; |
| return first; |
| } |
| |
| /*********************************************************************** |
| * _gcvt (MSVCRT.@) |
| * |
| * FIXME: uses both E and F. |
| */ |
| char * CDECL _gcvt( double number, int ndigit, char *buff ) |
| { |
| sprintf(buff, "%.*E", ndigit, number); |
| return buff; |
| } |
| |
| #include <stdlib.h> /* div_t, ldiv_t */ |
| |
| /********************************************************************* |
| * div (MSVCRT.@) |
| * VERSION |
| * [i386] Windows binary compatible - returns the struct in eax/edx. |
| */ |
| #ifdef __i386__ |
| unsigned __int64 CDECL MSVCRT_div(int num, int denom) |
| { |
| div_t dt = div(num,denom); |
| return ((unsigned __int64)dt.rem << 32) | (unsigned int)dt.quot; |
| } |
| #else |
| /********************************************************************* |
| * div (MSVCRT.@) |
| * VERSION |
| * [!i386] Non-x86 can't run win32 apps so we don't need binary compatibility |
| */ |
| MSVCRT_div_t CDECL MSVCRT_div(int num, int denom) |
| { |
| div_t dt = div(num,denom); |
| MSVCRT_div_t ret; |
| ret.quot = dt.quot; |
| ret.rem = dt.rem; |
| |
| return ret; |
| |
| } |
| #endif /* ifdef __i386__ */ |
| |
| |
| /********************************************************************* |
| * ldiv (MSVCRT.@) |
| * VERSION |
| * [i386] Windows binary compatible - returns the struct in eax/edx. |
| */ |
| #ifdef __i386__ |
| unsigned __int64 CDECL MSVCRT_ldiv(long num, long denom) |
| { |
| ldiv_t ldt = ldiv(num,denom); |
| return ((unsigned __int64)ldt.rem << 32) | (unsigned long)ldt.quot; |
| } |
| #else |
| /********************************************************************* |
| * ldiv (MSVCRT.@) |
| * VERSION |
| * [!i386] Non-x86 can't run win32 apps so we don't need binary compatibility |
| */ |
| MSVCRT_ldiv_t CDECL MSVCRT_ldiv(long num, long denom) |
| { |
| ldiv_t result = ldiv(num,denom); |
| |
| MSVCRT_ldiv_t ret; |
| ret.quot = result.quot; |
| ret.rem = result.rem; |
| |
| return ret; |
| } |
| #endif /* ifdef __i386__ */ |
| |
| /*********************************************************************** |
| * _adj_fdiv_m16i (MSVCRT.@) |
| * |
| * NOTE |
| * I _think_ this function is intended to work around the Pentium |
| * fdiv bug. |
| */ |
| void __stdcall _adj_fdiv_m16i( short arg ) |
| { |
| TRACE("(): stub\n"); |
| } |
| |
| /*********************************************************************** |
| * _adj_fdiv_m32 (MSVCRT.@) |
| * |
| * NOTE |
| * I _think_ this function is intended to work around the Pentium |
| * fdiv bug. |
| */ |
| void __stdcall _adj_fdiv_m32( unsigned int arg ) |
| { |
| TRACE("(): stub\n"); |
| } |
| |
| /*********************************************************************** |
| * _adj_fdiv_m32i (MSVCRT.@) |
| * |
| * NOTE |
| * I _think_ this function is intended to work around the Pentium |
| * fdiv bug. |
| */ |
| void __stdcall _adj_fdiv_m32i( int arg ) |
| { |
| TRACE("(): stub\n"); |
| } |
| |
| /*********************************************************************** |
| * _adj_fdiv_m64 (MSVCRT.@) |
| * |
| * NOTE |
| * I _think_ this function is intended to work around the Pentium |
| * fdiv bug. |
| */ |
| void __stdcall _adj_fdiv_m64( unsigned __int64 arg ) |
| { |
| TRACE("(): stub\n"); |
| } |
| |
| /*********************************************************************** |
| * _adj_fdiv_r (MSVCRT.@) |
| * FIXME |
| * This function is likely to have the wrong number of arguments. |
| * |
| * NOTE |
| * I _think_ this function is intended to work around the Pentium |
| * fdiv bug. |
| */ |
| void _adj_fdiv_r(void) |
| { |
| TRACE("(): stub\n"); |
| } |
| |
| /*********************************************************************** |
| * _adj_fdivr_m16i (MSVCRT.@) |
| * |
| * NOTE |
| * I _think_ this function is intended to work around the Pentium |
| * fdiv bug. |
| */ |
| void __stdcall _adj_fdivr_m16i( short arg ) |
| { |
| TRACE("(): stub\n"); |
| } |
| |
| /*********************************************************************** |
| * _adj_fdivr_m32 (MSVCRT.@) |
| * |
| * NOTE |
| * I _think_ this function is intended to work around the Pentium |
| * fdiv bug. |
| */ |
| void __stdcall _adj_fdivr_m32( unsigned int arg ) |
| { |
| TRACE("(): stub\n"); |
| } |
| |
| /*********************************************************************** |
| * _adj_fdivr_m32i (MSVCRT.@) |
| * |
| * NOTE |
| * I _think_ this function is intended to work around the Pentium |
| * fdiv bug. |
| */ |
| void __stdcall _adj_fdivr_m32i( int arg ) |
| { |
| TRACE("(): stub\n"); |
| } |
| |
| /*********************************************************************** |
| * _adj_fdivr_m64 (MSVCRT.@) |
| * |
| * NOTE |
| * I _think_ this function is intended to work around the Pentium |
| * fdiv bug. |
| */ |
| void __stdcall _adj_fdivr_m64( unsigned __int64 arg ) |
| { |
| TRACE("(): stub\n"); |
| } |
| |
| /*********************************************************************** |
| * _adj_fpatan (MSVCRT.@) |
| * FIXME |
| * This function is likely to have the wrong number of arguments. |
| * |
| * NOTE |
| * I _think_ this function is intended to work around the Pentium |
| * fdiv bug. |
| */ |
| void _adj_fpatan(void) |
| { |
| TRACE("(): stub\n"); |
| } |
| |
| /*********************************************************************** |
| * _adj_fprem (MSVCRT.@) |
| * FIXME |
| * This function is likely to have the wrong number of arguments. |
| * |
| * NOTE |
| * I _think_ this function is intended to work around the Pentium |
| * fdiv bug. |
| */ |
| void _adj_fprem(void) |
| { |
| TRACE("(): stub\n"); |
| } |
| |
| /*********************************************************************** |
| * _adj_fprem1 (MSVCRT.@) |
| * FIXME |
| * This function is likely to have the wrong number of arguments. |
| * |
| * NOTE |
| * I _think_ this function is intended to work around the Pentium |
| * fdiv bug. |
| */ |
| void _adj_fprem1(void) |
| { |
| TRACE("(): stub\n"); |
| } |
| |
| /*********************************************************************** |
| * _adj_fptan (MSVCRT.@) |
| * FIXME |
| * This function is likely to have the wrong number of arguments. |
| * |
| * NOTE |
| * I _think_ this function is intended to work around the Pentium |
| * fdiv bug. |
| */ |
| void _adj_fptan(void) |
| { |
| TRACE("(): stub\n"); |
| } |
| |
| /*********************************************************************** |
| * _adjust_fdiv (MSVCRT.@) |
| * FIXME |
| * I _think_ this function should be a variable indicating whether |
| * Pentium fdiv bug safe code should be used. |
| */ |
| void _adjust_fdiv(void) |
| { |
| TRACE("(): stub\n"); |
| } |
| |
| /*********************************************************************** |
| * _safe_fdiv (MSVCRT.@) |
| * FIXME |
| * This function is likely to have the wrong number of arguments. |
| * |
| * NOTE |
| * I _think_ this function is intended to work around the Pentium |
| * fdiv bug. |
| */ |
| void _safe_fdiv(void) |
| { |
| TRACE("(): stub\n"); |
| } |
| |
| /*********************************************************************** |
| * _safe_fdivr (MSVCRT.@) |
| * FIXME |
| * This function is likely to have the wrong number of arguments. |
| * |
| * NOTE |
| * I _think_ this function is intended to work around the Pentium |
| * fdiv bug. |
| */ |
| void _safe_fdivr(void) |
| { |
| TRACE("(): stub\n"); |
| } |
| |
| /*********************************************************************** |
| * _safe_fprem (MSVCRT.@) |
| * FIXME |
| * This function is likely to have the wrong number of arguments. |
| * |
| * NOTE |
| * I _think_ this function is intended to work around the Pentium |
| * fdiv bug. |
| */ |
| void _safe_fprem(void) |
| { |
| TRACE("(): stub\n"); |
| } |
| |
| /*********************************************************************** |
| * _safe_fprem1 (MSVCRT.@) |
| * |
| * FIXME |
| * This function is likely to have the wrong number of arguments. |
| * |
| * NOTE |
| * I _think_ this function is intended to work around the Pentium |
| * fdiv bug. |
| */ |
| void _safe_fprem1(void) |
| { |
| TRACE("(): stub\n"); |
| } |
