49d1a4c562
also start prefering NtDll API. so far: * NtQueryInformationFile * NtClose adds a performance workaround for windows unicode conversion. but that should probably be removed before merging
57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
#include <float.h>
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#include <errno.h>
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#include <windows.h>
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#include <msvcrt.h>
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static errno_t __cdecl _stub(
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unsigned int *currentControl,
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unsigned int newControl,
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unsigned int mask
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);
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errno_t __cdecl (*__MINGW_IMP_SYMBOL(_controlfp_s))(unsigned int *, unsigned int, unsigned int) = _stub;
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errno_t __cdecl _controlfp_s(
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unsigned int *currentControl,
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unsigned int newControl,
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unsigned int mask
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){
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return __MINGW_IMP_SYMBOL(_controlfp_s)(currentControl,newControl,mask);
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}
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static const unsigned int allflags = _MCW_DN | _MCW_EM | _MCW_IC | _MCW_RC | _MCW_PC;
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static errno_t __cdecl _int_controlfp_s(
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unsigned int *currentControl,
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unsigned int newControl,
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unsigned int mask
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){
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unsigned int cont;
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if(!(newControl & mask & ~allflags)){
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if (currentControl) *currentControl = _controlfp( 0, 0 );
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return EINVAL;
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}
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cont = _controlfp( newControl, mask );
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if(currentControl) *currentControl = cont;
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return 0;
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}
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static errno_t __cdecl _stub (
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unsigned int *currentControl,
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unsigned int newControl,
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unsigned int mask
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)
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{
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errno_t __cdecl (*f)(unsigned int *, unsigned int, unsigned int) = __MINGW_IMP_SYMBOL(_controlfp_s);
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if (f == _stub)
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{
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f = (errno_t __cdecl (*)(unsigned int *, unsigned int, unsigned int))
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GetProcAddress (__mingw_get_msvcrt_handle (), "_controlfp_s");
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if (!f)
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f = _int_controlfp_s;
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__MINGW_IMP_SYMBOL(_controlfp_s) = f;
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}
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return (*f)(currentControl, newControl, mask);
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}
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