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More windows port work by Ruben Van Boxem

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@142732 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Howard Hinnant
2011-10-22 20:59:45 +00:00
parent f46fc939cb
commit 78b6828f14
16 changed files with 233 additions and 121 deletions
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24
include/support/win32/limits_win32.h
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@@ -15,6 +15,11 @@
#error "This header is MSVC specific, Clang and GCC should not include it"
#else
#ifndef NOMINMAX
#define NOMINMAX
#endif
#include <windows.h> // ymath.h works correctly
#include <float.h> // limit constants
#define __FLT_MANT_DIG__ FLT_MANT_DIG
@@ -57,16 +62,17 @@
#define __LDBL_DENORM_MIN__ 3.64519953188247460253e-4951L
// __builtin replacements/workarounds
#include <math.h> // HUGE_VAL
#include <ymath.h> // internal MSVC header providing the needed functionality
#define __builtin_huge_val() HUGE_VAL
#define __builtin_huge_valf() _FInf
#define __builtin_huge_vall() _LInf
#define __builtin_nan() _Nan
#define __builtin_nanf() _FNan
#define __builtin_nanl() _LNan
#define __builtin_nans() _Snan
#define __builtin_nansf() _FSnan
#define __builtin_nansl() _LSnan
#define __builtin_huge_val() HUGE_VAL
#define __builtin_huge_valf() _FInf._Float
#define __builtin_huge_vall() _LInf._Long_double
#define __builtin_nan(__dummy) _Nan._Double
#define __builtin_nanf(__dummy) _FNan._Float
#define __builtin_nanl(__dummmy) _LNan._Long_double
#define __builtin_nans(__dummy) _Snan._Double
#define __builtin_nansf(__dummy) _FSnan._Float
#define __builtin_nansl(__dummy) _LSnan._Long_double
#endif // _MSC_VER

76
include/support/win32/support.h
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@@ -15,17 +15,81 @@
Functions and constants used in libc++ that are missing from the Windows C library.
*/
#include <__config>
#include <wchar.h> // mbstate_t
#include <stdio.h> // _snwprintf
#define swprintf _snwprintf
#define vswprintf _vsnwprintf
#define vfscnaf fscanf
int vasprintf( char **sptr, const char *__restrict__ fmt , va_list ap );
int asprintf(char **sptr, const char *__restrict__ fmt, ...);
int vasprintf( char **sptr, const char *__restrict fmt , va_list ap );
int asprintf( char **sptr, const char *__restrict fmt, ...);
//int vfscanf( FILE *__restrict stream, const char *__restrict format,
// va_list arg);
size_t mbsnrtowcs( wchar_t *__restrict__ dst, const char **__restrict__ src,
size_t nmc, size_t len, mbstate_t *__restrict__ ps );
size_t wcsnrtombs( char *__restrict__ dst, const wchar_t **__restrict__ src,
size_t nwc, size_t len, mbstate_t *__restrict__ ps );
size_t mbsnrtowcs( wchar_t *__restrict dst, const char **__restrict src,
size_t nmc, size_t len, mbstate_t *__restrict ps );
size_t wcsnrtombs( char *__restrict dst, const wchar_t **__restrict src,
size_t nwc, size_t len, mbstate_t *__restrict ps );
#if defined(_MSC_VER)
#define snprintf _snprintf
inline int isblank( int c, locale_t /*loc*/ )
{ return ( c == ' ' || c == '\t' ); }
inline int iswblank( wint_t c, locale_t /*loc*/ )
{ return ( c == L' ' || c == L'\t' ); }
#include <xlocinfo.h>
#define atoll _atoi64
#define strtoll _strtoi64
#define strtoull _strtoui64
#define wcstoll _wcstoi64
#define wcstoull _wcstoui64
_LIBCPP_ALWAYS_INLINE float strtof( const char *nptr, char **endptr )
{ return _Stof(nptr, endptr, 0); }
_LIBCPP_ALWAYS_INLINE double strtod( const char *nptr, char **endptr )
{ return _Stod(nptr, endptr, 0); }
_LIBCPP_ALWAYS_INLINE long double strtold( const char *nptr, char **endptr )
{ return _Stold(nptr, endptr, 0); }
_LIBCPP_ALWAYS_INLINE float wcstof( const wchar_t *nptr, char** endptr )
#define _Exit _exit
#include <intrin.h>
#define __builtin_popcount __popcnt
#define __builtin_popcountl __popcnt
#define __builtin_popcountll(__i) static_cast<int>(__popcnt64(__i))
_LIBCPP_ALWAYS_INLINE int __builtin_ctz( unsigned int x )
{
DWORD r = 0;
_BitScanReverse(&r, x);
return static_cast<int>(r);
}
// sizeof(long) == sizeof(int) on Windows
_LIBCPP_ALWAYS_INLINE int __builtin_ctzl( unsigned long x )
{ return __builtin_ctz( static_cast<int>(x) ); }
_LIBCPP_ALWAYS_INLINE int __builtin_ctzll( unsigned long long x )
{
DWORD r = 0;
_BitScanReverse64(&r, x);
return static_cast<int>(r);
}
_LIBCPP_ALWAYS_INLINE int __builtin_clz( unsigned int x )
{
DWORD r = 0;
_BitScanForward(&r, x);
return static_cast<int>(r);
}
// sizeof(long) == sizeof(int) on Windows
_LIBCPP_ALWAYS_INLINE int __builtin_clzl( unsigned long x )
{ return __builtin_clz( static_cast<int>(x) ); }
_LIBCPP_ALWAYS_INLINE int __builtin_clzll( unsigned long long x )
{
DWORD r = 0;
_BitScanForward64(&r, x);
return static_cast<int>(r);
}
#endif
#endif // _LIBCPP_SUPPORT_WIN32_SUPPORT_H