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synced 2024-10-06 22:24:06 +00:00
msvcrt: Use the nextafter()/nextafterf() implementation from the bundled musl library.
This commit is contained in:
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cd29cd85ab
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85e655445b
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@ -241,7 +241,7 @@
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@ cdecl _mkdir(str)
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@ cdecl _mktemp(str)
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@ cdecl _msize(ptr)
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@ cdecl _nextafter(double double)
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@ cdecl _nextafter(double double) nextafter
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@ cdecl _onexit(ptr)
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@ varargs _open(str long)
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@ cdecl _open_osfhandle(long long)
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@ -1215,8 +1215,8 @@
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@ cdecl _mktime32(ptr)
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@ cdecl _mktime64(ptr)
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@ cdecl _msize(ptr)
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@ cdecl _nextafter(double double)
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@ cdecl -arch=x86_64 _nextafterf(float float)
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@ cdecl _nextafter(double double) nextafter
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@ cdecl -arch=x86_64 _nextafterf(float float) nextafterf
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@ cdecl _onexit(ptr)
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@ varargs _open(str long)
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@ cdecl _open_osfhandle(long long)
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@ -1572,8 +1572,8 @@
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@ cdecl _mktime32(ptr)
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@ cdecl _mktime64(ptr)
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@ cdecl _msize(ptr)
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@ cdecl _nextafter(double double)
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@ cdecl -arch=x86_64 _nextafterf(float float)
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@ cdecl _nextafter(double double) nextafter
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@ cdecl -arch=x86_64 _nextafterf(float float) nextafterf
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@ cdecl _onexit(ptr)
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@ varargs _open(str long)
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@ cdecl _open_osfhandle(long long)
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@ -1583,8 +1583,8 @@
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@ cdecl _mktime32(ptr)
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@ cdecl _mktime64(ptr)
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@ cdecl _msize(ptr)
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@ cdecl _nextafter(double double)
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@ cdecl -arch=x86_64 _nextafterf(float float)
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@ cdecl _nextafter(double double) nextafter
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@ cdecl -arch=x86_64 _nextafterf(float float) nextafterf
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@ cdecl _onexit(ptr)
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@ varargs _open(str long)
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@ cdecl _open_osfhandle(long long)
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@ -2300,9 +2300,9 @@
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@ cdecl nearbyint(double)
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@ cdecl nearbyintf(float)
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@ cdecl nearbyintl(double) nearbyint
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@ cdecl nextafter(double double) _nextafter
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@ cdecl nextafterf(float float) _nextafterf
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@ cdecl nextafterl(double double) _nextafter
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@ cdecl nextafter(double double)
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@ cdecl nextafterf(float float)
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@ cdecl nextafterl(double double) nextafter
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@ cdecl nexttoward(double double) MSVCRT_nexttoward
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@ cdecl nexttowardf(float double) MSVCRT_nexttowardf
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@ cdecl nexttowardl(double double) MSVCRT_nexttoward
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@ -479,7 +479,7 @@
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@ cdecl _mktemp(str)
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@ cdecl _mktime64(ptr)
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@ cdecl _msize(ptr)
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@ cdecl _nextafter(double double)
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@ cdecl _nextafter(double double) nextafter
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@ cdecl _onexit(ptr)
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@ varargs _open(str long)
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@ cdecl _open_osfhandle(long long)
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@ -474,7 +474,7 @@
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@ cdecl _mktemp(str)
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@ cdecl _mktime64(ptr)
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@ cdecl _msize(ptr)
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@ cdecl _nextafter(double double)
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@ cdecl _nextafter(double double) nextafter
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@ cdecl _onexit(ptr)
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@ varargs _open(str long)
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@ cdecl _open_osfhandle(long long)
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@ -887,8 +887,8 @@
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@ cdecl _mktime32(ptr)
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@ cdecl _mktime64(ptr)
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@ cdecl _msize(ptr)
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@ cdecl _nextafter(double double)
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@ cdecl -arch=x86_64 _nextafterf(float float)
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@ cdecl _nextafter(double double) nextafter
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@ cdecl -arch=x86_64 _nextafterf(float float) nextafterf
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@ cdecl _onexit(ptr)
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@ varargs _open(str long)
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@ cdecl _open_osfhandle(long long)
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@ -865,8 +865,8 @@
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@ cdecl _mktime32(ptr)
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@ cdecl _mktime64(ptr)
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@ cdecl _msize(ptr)
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@ cdecl _nextafter(double double)
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@ cdecl -arch=x86_64 _nextafterf(float float)
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@ cdecl _nextafter(double double) nextafter
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@ cdecl -arch=x86_64 _nextafterf(float float) nextafterf
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@ cdecl _onexit(ptr)
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@ varargs _open(str long)
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@ cdecl _open_osfhandle(long long)
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@ -216,49 +216,6 @@ float CDECL _chgsignf( float num )
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return u.f;
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}
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/*********************************************************************
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* _nextafterf (MSVCRT.@)
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*
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* Copied from musl: src/math/nextafterf.c
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*/
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float CDECL _nextafterf( float x, float y )
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{
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unsigned int ix = *(unsigned int*)&x;
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unsigned int iy = *(unsigned int*)&y;
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unsigned int ax, ay, e;
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if (isnan(x) || isnan(y))
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return x + y;
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if (x == y) {
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if (_fpclassf(y) & (_FPCLASS_ND | _FPCLASS_PD | _FPCLASS_NZ | _FPCLASS_PZ ))
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*_errno() = ERANGE;
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return y;
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}
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ax = ix & 0x7fffffff;
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ay = iy & 0x7fffffff;
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if (ax == 0) {
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if (ay == 0)
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return y;
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ix = (iy & 0x80000000) | 1;
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} else if (ax > ay || ((ix ^ iy) & 0x80000000))
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ix--;
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else
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ix++;
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e = ix & 0x7f800000;
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/* raise overflow if ix is infinite and x is finite */
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if (e == 0x7f800000) {
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fp_barrierf(x + x);
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*_errno() = ERANGE;
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}
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/* raise underflow if ix is subnormal or zero */
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y = *(float*)&ix;
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if (e == 0) {
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fp_barrierf(x * x + y * y);
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*_errno() = ERANGE;
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}
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return y;
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}
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#endif
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/* Copied from musl: src/math/__rem_pio2_large.c */
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@ -4124,7 +4081,7 @@ float CDECL nearbyintf(float x)
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*/
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double CDECL MSVCRT_nexttoward(double num, double next)
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{
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return _nextafter(num, next);
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return nextafter(num, next);
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}
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/*********************************************************************
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@ -4174,50 +4131,6 @@ float CDECL MSVCRT_nexttowardf(float x, double y)
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#endif /* _MSVCR_VER>=120 */
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/*********************************************************************
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* _nextafter (MSVCRT.@)
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*
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* Copied from musl: src/math/nextafter.c
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*/
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double CDECL _nextafter(double x, double y)
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{
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ULONGLONG llx = *(ULONGLONG*)&x;
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ULONGLONG lly = *(ULONGLONG*)&y;
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ULONGLONG ax, ay;
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int e;
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if (isnan(x) || isnan(y))
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return x + y;
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if (llx == lly) {
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if (_fpclass(y) & (_FPCLASS_ND | _FPCLASS_PD | _FPCLASS_NZ | _FPCLASS_PZ ))
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*_errno() = ERANGE;
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return y;
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}
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ax = llx & -1ULL / 2;
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ay = lly & -1ULL / 2;
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if (ax == 0) {
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if (ay == 0)
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return y;
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llx = (lly & 1ULL << 63) | 1;
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} else if (ax > ay || ((llx ^ lly) & 1ULL << 63))
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llx--;
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else
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llx++;
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e = llx >> 52 & 0x7ff;
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/* raise overflow if llx is infinite and x is finite */
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if (e == 0x7ff) {
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fp_barrier(x + x);
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*_errno() = ERANGE;
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}
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/* raise underflow if llx is subnormal or zero */
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y = *(double*)&llx;
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if (e == 0) {
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fp_barrier(x * x + y * y);
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*_errno() = ERANGE;
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}
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return y;
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}
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/*********************************************************************
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* _ecvt (MSVCRT.@)
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*/
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@ -840,8 +840,8 @@
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@ cdecl _msize(ptr)
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# stub -arch=win32 _msize_debug(ptr long)
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# stub -arch=win64 _msize_dbg(ptr long)
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@ cdecl _nextafter(double double)
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@ cdecl -arch=x86_64 _nextafterf(float float)
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@ cdecl _nextafter(double double) nextafter
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@ cdecl -arch=x86_64 _nextafterf(float float) nextafterf
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@ cdecl _onexit(ptr)
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@ varargs _open(str long)
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@ cdecl _open_osfhandle(long long)
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@ -457,7 +457,7 @@
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@ cdecl _mktemp(str)
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@ cdecl _msize(ptr)
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@ cdecl _msize_dbg(ptr) _msize
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@ cdecl _nextafter(double double)
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@ cdecl _nextafter(double double) nextafter
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@ cdecl _onexit(ptr)
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@ varargs _open(str long)
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@ cdecl _open_osfhandle(long long)
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@ -731,8 +731,8 @@
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@ cdecl _mktime32(ptr)
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@ cdecl _mktime64(ptr)
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@ cdecl _msize(ptr)
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@ cdecl _nextafter(double double)
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@ cdecl -arch=x86_64 _nextafterf(float float)
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@ cdecl _nextafter(double double) nextafter
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@ cdecl -arch=x86_64 _nextafterf(float float) nextafterf
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@ cdecl -arch=i386 _o__CIacos() _CIacos
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@ cdecl -arch=i386 _o__CIasin() _CIasin
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@ cdecl -arch=i386 _o__CIatan() _CIatan
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@ -1299,8 +1299,8 @@
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@ cdecl _o__mktime32(ptr) _mktime32
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@ cdecl _o__mktime64(ptr) _mktime64
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@ cdecl _o__msize(ptr) _msize
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@ cdecl _o__nextafter(double double) _nextafter
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@ cdecl -arch=x86_64 _o__nextafterf(float float) _nextafterf
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@ cdecl _o__nextafter(double double) nextafter
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@ cdecl -arch=x86_64 _o__nextafterf(float float) nextafterf
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@ cdecl _o__open_osfhandle(long long) _open_osfhandle
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@ cdecl _o__pclose(ptr) _pclose
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@ cdecl _o__pipe(ptr long long) _pipe
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@ -1730,9 +1730,9 @@
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@ cdecl _o_nearbyint(double) nearbyint
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@ cdecl _o_nearbyintf(float) nearbyintf
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@ cdecl _o_nearbyintl(double) nearbyint
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@ cdecl _o_nextafter(double double) _nextafter
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@ cdecl _o_nextafterf(float float) _nextafterf
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@ cdecl _o_nextafterl(double double) _nextafter
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@ cdecl _o_nextafter(double double) nextafter
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@ cdecl _o_nextafterf(float float) nextafterf
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@ cdecl _o_nextafterl(double double) nextafter
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@ cdecl _o_nexttoward(double double) MSVCRT_nexttoward
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@ cdecl _o_nexttowardf(float double) MSVCRT_nexttowardf
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@ cdecl _o_nexttowardl(double double) MSVCRT_nexttoward
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@ -2438,9 +2438,9 @@
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@ cdecl nearbyint(double)
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@ cdecl nearbyintf(float)
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@ cdecl nearbyintl(double) nearbyint
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@ cdecl nextafter(double double) _nextafter
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@ cdecl nextafterf(float float) _nextafterf
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@ cdecl nextafterl(double double) _nextafter
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@ cdecl nextafter(double double)
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@ cdecl nextafterf(float float)
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@ cdecl nextafterl(double double) nextafter
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@ cdecl nexttoward(double double) MSVCRT_nexttoward
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@ cdecl nexttowardf(float double) MSVCRT_nexttowardf
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@ cdecl nexttowardl(double double) MSVCRT_nexttoward
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@ -8,8 +8,12 @@ double __cdecl nextafter(double x, double y)
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if (isnan(x) || isnan(y))
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return x + y;
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if (ux.i == uy.i)
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if (ux.i == uy.i) {
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e = ux.i >> 52 & 0x7ff;
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if (!e)
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errno = ERANGE;
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return y;
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}
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ax = ux.i & -1ULL/2;
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ay = uy.i & -1ULL/2;
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if (ax == 0) {
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@ -22,10 +26,14 @@ double __cdecl nextafter(double x, double y)
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ux.i++;
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e = ux.i >> 52 & 0x7ff;
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/* raise overflow if ux.f is infinite and x is finite */
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if (e == 0x7ff)
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if (e == 0x7ff) {
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FORCE_EVAL(x+x);
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errno = ERANGE;
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}
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/* raise underflow if ux.f is subnormal or zero */
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if (e == 0)
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if (e == 0) {
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FORCE_EVAL(x*x + ux.f*ux.f);
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errno = ERANGE;
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}
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return ux.f;
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}
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@ -7,8 +7,12 @@ float __cdecl nextafterf(float x, float y)
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if (isnan(x) || isnan(y))
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return x + y;
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if (ux.i == uy.i)
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if (ux.i == uy.i) {
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e = ux.i & 0x7f800000;
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if (!e)
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errno = ERANGE;
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return y;
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}
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ax = ux.i & 0x7fffffff;
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ay = uy.i & 0x7fffffff;
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if (ax == 0) {
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ux.i++;
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e = ux.i & 0x7f800000;
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/* raise overflow if ux.f is infinite and x is finite */
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if (e == 0x7f800000)
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if (e == 0x7f800000) {
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FORCE_EVAL(x+x);
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errno = ERANGE;
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}
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/* raise underflow if ux.f is subnormal or zero */
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if (e == 0)
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if (e == 0) {
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FORCE_EVAL(x*x + ux.f*ux.f);
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errno = ERANGE;
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}
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return ux.f;
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}
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