It not work because __FLT_EVAL_METHOD__ = -1
2012/12/24 Kai Tietz <ktiet...@googlemail.com>
> Hmm, well, I see. We could simplify code here.
>
> #if defined (__x86_64__) || (defined (__FLT_EVAL_METHOD__) &&
> __FLT_EVAL_METHOD__ == 0)
> typedef float float_t;
> typedef double double_t;
> #else
> typedef long double float_t;
> typedef long double double_t;
> #endif
>
> 2012/12/24 Алексей Павлов <alex...@gmail.com>:
> > I still have error:
> > $ echo "#include <cmath>" | g++ -x c++ -c - -m32 -mfpmath=both
> -std=gnu++11
> > -o /dev/null
> > In file included from <stdin>:1:0:
> >
> c:\gccbuild\msys\temp\x64-4.7.2-release-posix-sjlj-rev5\prefix\bin\../lib/gcc/x86_64-w64-mingw32/4.7.2/include/c++/cmath:1040:11:
> > error: '::double_t' has not been declared
> >
> c:\gccbuild\msys\temp\x64-4.7.2-release-posix-sjlj-rev5\prefix\bin\../lib/gcc/x86_64-w64-mingw32/4.7.2/include/c++/cmath:1041:11:
> > error: '::float_t' has not been declared
> >
> > On 64 multilib toolchain when execute
> > echo "#include <cmath>" | g++ -x c++ -c - -m32 -mfpmath=both
> -std=gnu++11 -o
> > /dev/null
> >
> > 2012/12/24 Kai Tietz <ktiet...@googlemail.com>
> >>
> >> Hmm, I don't see the point why we should limit that for x64 case to
> >> __FLT_EVAL_METHOD == -1? In all cases it has simply to use
> >> float/double for x64. Btw AFAIK is *nix using same approach.
> >> What is actual the issue you still get?
> >>
> >> Kai
> >>
> >> 2012/12/24 Алексей Павлов <alex...@gmail.com>:
> >> > I think possible patch to complete resolve this problem is
> >> >
> >> > --- math.h.orig 2012-12-23 11:56:01 +0400
> >> > +++ math.h 2012-12-24 13:10:52 +0400
> >> > @@ -318,8 +318,16 @@
> >> >
> >> > /* Use the compiler's builtin define for FLT_EVAL_METHOD to
> >> > set float_t and double_t. */
> >> > -#if defined (__x86_64__) || defined(__FLT_EVAL_METHOD__)
> >> > -# if defined (__x86_64__) || ( __FLT_EVAL_METHOD__== 0)
> >> > +#if defined(__FLT_EVAL_METHOD__)
> >> > +# if ( __FLT_EVAL_METHOD__== -1)
> >> > +# if defined (__x86_64__)
> >> > +typedef long double float_t;
> >> > +typedef long double double_t;
> >> > +# else
> >> > +typedef float float_t;
> >> > +typedef double double_t;
> >> > +# endif
> >> > +# elif ( __FLT_EVAL_METHOD__== 0)
> >> > typedef float float_t;
> >> > typedef double double_t;
> >> > # elif (__FLT_EVAL_METHOD__ == 1)
> >> >
> >> >
> >> > 2012/12/24 Алексей Павлов <alex...@gmail.com>
> >> >>
> >> >> I find that when I try to execute
> >> >> echo "#include <cmath>" | g++ -x c++ -c - -m32 -mfpmath=both
> >> >> -std=gnu++11
> >> >> -o /dev/null
> >> >>
> >> >> _x86_64_ not defined and __FLT_EVAL_METHOD__==-1
> >> >>
> >> >> Why gcc internal definition of __FLT_EVAL_METHOD__ not applied during
> >> >> execute code?
> >> >>
> >> >>
> >> >> 2012/12/24 Алексей Павлов <alex...@gmail.com>
> >> >>>
> >> >>> Below is difference of gcc internal definitions of 64 multilib
> >> >>> toolchain
> >> >>> with -m32 switch and without it:
> >> >>>
> >> >>> --- m32.txt 2012-12-24 09:46:13 +0400
> >> >>> +++ m64.txt 2012-12-24 09:44:19 +0400
> >> >>> @@ -7,9 +7,10 @@
> >> >>> #define __INTMAX_C(c) c ## LL
> >> >>> #define __CHAR_BIT__ 8
> >> >>> #define __UINT8_MAX__ 255
> >> >>> +#define _WIN64 1
> >> >>> #define __WINT_MAX__ 65535
> >> >>> #define __ORDER_LITTLE_ENDIAN__ 1234
> >> >>> -#define __SIZE_MAX__ 4294967295U
> >> >>> +#define __SIZE_MAX__ 18446744073709551615ULL
> >> >>> #define __WCHAR_MAX__ 65535
> >> >>> #define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1 1
> >> >>> #define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2 1
> >> >>> @@ -17,8 +18,9 @@
> >> >>> #define __DBL_DENORM_MIN__ ((double)4.94065645841246544177e-324L)
> >> >>> #define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 1
> >> >>> #define __GCC_ATOMIC_CHAR_LOCK_FREE 2
> >> >>> -#define __FLT_EVAL_METHOD__ 2
> >> >>> +#define __FLT_EVAL_METHOD__ 0
> >> >>> #define __GCC_ATOMIC_CHAR32_T_LOCK_FREE 2
> >> >>> +#define __x86_64 1
> >> >>> #define __UINT_FAST64_MAX__ 18446744073709551615ULL
> >> >>> #define __SIG_ATOMIC_TYPE__ int
> >> >>> #define __DBL_MIN_10_EXP__ (-307)
> >> >>> @@ -44,11 +46,12 @@
> >> >>> #define __DBL_DIG__ 15
> >> >>> #define __GCC_ATOMIC_POINTER_LOCK_FREE 2
> >> >>> #define __SIZEOF_INT__ 4
> >> >>> -#define __SIZEOF_POINTER__ 4
> >> >>> -#define __USER_LABEL_PREFIX__ _
> >> >>> +#define __SIZEOF_POINTER__ 8
> >> >>> +#define __USER_LABEL_PREFIX__
> >> >>> #define __STDC_HOSTED__ 1
> >> >>> #define __WIN32 1
> >> >>> #define __LDBL_HAS_INFINITY__ 1
> >> >>> +#define __WIN64 1
> >> >>> #define __FLT_EPSILON__ 1.19209289550781250000e-7F
> >> >>> #define __LDBL_MIN__ 3.36210314311209350626e-4932L
> >> >>> #define __DEC32_MAX__ 9.999999E96DF
> >> >>> @@ -63,7 +66,7 @@
> >> >>> #define _cdecl __attribute__((__cdecl__))
> >> >>> #define __MMX__ 1
> >> >>> #define __FLT_HAS_DENORM__ 1
> >> >>> -#define __SIZEOF_LONG_DOUBLE__ 12
> >> >>> +#define __SIZEOF_LONG_DOUBLE__ 16
> >> >>> #define __BIGGEST_ALIGNMENT__ 16
> >> >>> #define __DBL_MAX__ ((double)1.79769313486231570815e+308L)
> >> >>> #define _thiscall __attribute__((__thiscall__))
> >> >>> @@ -81,10 +84,12 @@
> >> >>> #define __DEC32_MIN__ 1E-95DF
> >> >>> #define __DBL_MAX_EXP__ 1024
> >> >>> #define __DEC128_EPSILON__ 1E-33DL
> >> >>> +#define __SSE2_MATH__ 1
> >> >>> #define __WIN32__ 1
> >> >>> -#define __PTRDIFF_MAX__ 2147483647
> >> >>> +#define __PTRDIFF_MAX__ 9223372036854775807LL
> >> >>> +#define __amd64 1
> >> >>> #define __LONG_LONG_MAX__ 9223372036854775807LL
> >> >>> -#define __SIZEOF_SIZE_T__ 4
> >> >>> +#define __SIZEOF_SIZE_T__ 8
> >> >>> #define __SIZEOF_WINT_T__ 2
> >> >>> #define __GXX_ABI_VERSION 1002
> >> >>> #define __FLT_MIN_EXP__ (-125)
> >> >>> @@ -99,12 +104,10 @@
> >> >>> #define __cdecl __attribute__((__cdecl__))
> >> >>> #define __UINT8_TYPE__ unsigned char
> >> >>> #define __NO_INLINE__ 1
> >> >>> -#define __i386 1
> >> >>> #define __FLT_MANT_DIG__ 24
> >> >>> #define __VERSION__ "4.7.2"
> >> >>> #define __UINT64_C(c) c ## ULL
> >> >>> #define __GCC_ATOMIC_INT_LOCK_FREE 2
> >> >>> -#define _X86_ 1
> >> >>> #define __FLOAT_WORD_ORDER__ __ORDER_LITTLE_ENDIAN__
> >> >>> #define __INT32_C(c) c
> >> >>> #define __DEC64_EPSILON__ 1E-15DD
> >> >>> @@ -113,18 +116,20 @@
> >> >>> #define __INT_FAST32_TYPE__ int
> >> >>> #define __UINT_LEAST16_TYPE__ short unsigned int
> >> >>> #define __INT16_MAX__ 32767
> >> >>> -#define __i386__ 1
> >> >>> -#define __SIZE_TYPE__ unsigned int
> >> >>> +#define __SIZE_TYPE__ long long unsigned int
> >> >>> #define __UINT64_MAX__ 18446744073709551615ULL
> >> >>> #define __INT8_TYPE__ signed char
> >> >>> #define __FLT_RADIX__ 2
> >> >>> #define __INT_LEAST16_TYPE__ short int
> >> >>> #define __LDBL_EPSILON__ 1.08420217248550443401e-19L
> >> >>> #define __UINTMAX_C(c) c ## ULL
> >> >>> +#define __SSE_MATH__ 1
> >> >>> #define __k8 1
> >> >>> +#define __SEH__ 1
> >> >>> #define __SIG_ATOMIC_MAX__ 2147483647
> >> >>> #define __GCC_ATOMIC_WCHAR_T_LOCK_FREE 2
> >> >>> -#define __SIZEOF_PTRDIFF_T__ 4
> >> >>> +#define __SIZEOF_PTRDIFF_T__ 8
> >> >>> +#define __x86_64__ 1
> >> >>> #define __DEC32_SUBNORMAL_MIN__ 0.000001E-95DF
> >> >>> #define __MSVCRT__ 1
> >> >>> #define __INT_FAST16_MAX__ 32767
> >> >>> @@ -149,7 +154,7 @@
> >> >>> #define __INT_LEAST8_TYPE__ signed char
> >> >>> #define __DEC32_MAX_EXP__ 97
> >> >>> #define __INT_FAST8_MAX__ 127
> >> >>> -#define __INTPTR_MAX__ 2147483647
> >> >>> +#define __INTPTR_MAX__ 9223372036854775807LL
> >> >>> #define __GXX_MERGED_TYPEINFO_NAMES 0
> >> >>> #define __stdcall __attribute__((__stdcall__))
> >> >>> #define __SSE2__ 1
> >> >>> @@ -157,20 +162,24 @@
> >> >>> #define __DBL_HAS_QUIET_NAN__ 1
> >> >>> #define __SIG_ATOMIC_MIN__ (-__SIG_ATOMIC_MAX__ - 1)
> >> >>> #define __k8__ 1
> >> >>> -#define __INTPTR_TYPE__ int
> >> >>> +#define __INTPTR_TYPE__ long long int
> >> >>> #define __UINT16_TYPE__ short unsigned int
> >> >>> #define __WCHAR_TYPE__ short unsigned int
> >> >>> #define __SIZEOF_FLOAT__ 4
> >> >>> -#define __UINTPTR_MAX__ 4294967295U
> >> >>> +#define __pic__ 1
> >> >>> +#define __UINTPTR_MAX__ 18446744073709551615ULL
> >> >>> #define __DEC64_MIN_EXP__ (-382)
> >> >>> #define __INT_FAST64_MAX__ 9223372036854775807LL
> >> >>> #define __GCC_ATOMIC_TEST_AND_SET_TRUEVAL 1
> >> >>> #define __FLT_DIG__ 6
> >> >>> #define __UINT_FAST64_TYPE__ long long unsigned int
> >> >>> #define __INT_MAX__ 2147483647
> >> >>> +#define __amd64__ 1
> >> >>> #define WIN32 1
> >> >>> #define __INT64_TYPE__ long long int
> >> >>> #define __FLT_MAX_EXP__ 128
> >> >>> +#define WIN64 1
> >> >>> +#define __ORDER_BIG_ENDIAN__ 4321
> >> >>> #define __DBL_MANT_DIG__ 53
> >> >>> #define __INT_LEAST64_MAX__ 9223372036854775807LL
> >> >>> #define __GCC_ATOMIC_CHAR16_T_LOCK_FREE 2
> >> >>> @@ -181,6 +190,7 @@
> >> >>> #define __SSE__ 1
> >> >>> #define __LDBL_MIN_EXP__ (-16381)
> >> >>> #define __INT_LEAST8_MAX__ 127
> >> >>> +#define __SIZEOF_INT128__ 16
> >> >>> #define __LDBL_MAX_10_EXP__ 4932
> >> >>> #define __ATOMIC_RELAXED 0
> >> >>> #define __DBL_EPSILON__ ((double)2.22044604925031308085e-16L)
> >> >>> @@ -193,13 +203,14 @@
> >> >>> #define __fastcall __attribute__((__fastcall__))
> >> >>> #define __DBL_DECIMAL_DIG__ 17
> >> >>> #define __DEC_EVAL_METHOD__ 2
> >> >>> -#define __ORDER_BIG_ENDIAN__ 4321
> >> >>> +#define __MINGW64__ 1
> >> >>> #define __UINT32_C(c) c ## U
> >> >>> #define __INTMAX_MAX__ 9223372036854775807LL
> >> >>> #define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__
> >> >>> #define WINNT 1
> >> >>> #define __FLT_DENORM_MIN__ 1.40129846432481707092e-45F
> >> >>> #define __INT8_MAX__ 127
> >> >>> +#define __PIC__ 1
> >> >>> #define __UINT_FAST32_TYPE__ unsigned int
> >> >>> #define __CHAR32_TYPE__ unsigned int
> >> >>> #define __FLT_MAX__ 3.40282346638528859812e+38F
> >> >>> @@ -207,7 +218,6 @@
> >> >>> #define __SIZEOF_DOUBLE__ 8
> >> >>> #define __FLT_MIN_10_EXP__ (-37)
> >> >>> #define __INTMAX_TYPE__ long long int
> >> >>> -#define i386 1
> >> >>> #define _INTEGRAL_MAX_BITS 64
> >> >>> #define __DEC128_MAX_EXP__ 6145
> >> >>> #define __ATOMIC_CONSUME 1
> >> >>> @@ -218,10 +228,10 @@
> >> >>> #define __LDBL_DENORM_MIN__ 3.64519953188247460253e-4951L
> >> >>> #define __INT16_C(c) c
> >> >>> #define __STDC__ 1
> >> >>> -#define __PTRDIFF_TYPE__ int
> >> >>> +#define __PTRDIFF_TYPE__ long long int
> >> >>> #define __ATOMIC_SEQ_CST 5
> >> >>> #define __UINT32_TYPE__ unsigned int
> >> >>> -#define __UINTPTR_TYPE__ unsigned int
> >> >>> +#define __UINTPTR_TYPE__ long long unsigned int
> >> >>> #define __DEC64_SUBNORMAL_MIN__ 0.000000000000001E-383DD
> >> >>> #define __DEC128_MANT_DIG__ 34
> >> >>> #define __LDBL_MIN_10_EXP__ (-4931)
> >> >>> @@ -233,6 +243,7 @@
> >> >>> #define __GNUC_GNU_INLINE__ 1
> >> >>> #define __GCC_ATOMIC_SHORT_LOCK_FREE 2
> >> >>> #define __UINT_FAST8_TYPE__ unsigned char
> >> >>> +#define __WIN64__ 1
> >> >>> #define __ATOMIC_ACQ_REL 4
> >> >>> #define __ATOMIC_RELEASE 3
> >> >>> #define __declspec(x) __attribute__((x))
> >> >>>
> >> >>>
> >> >>> 2012/12/24 Алексей Павлов <alex...@gmail.com>
> >> >>>>
> >> >>>> Hi!
> >> >>>> This is only resolve a part of error. Error is present in 64-bit
> >> >>>> multilib builds if you try to execute example code with -m32
> switch.
> >> >>>>
> >> >>>>
> >> >>>> 2012/12/20 Kai Tietz <ktiet...@googlemail.com>
> >> >>>>>
> >> >>>>> 2012/12/20 Ruben Van Boxem <vanboxem.ru...@gmail.com>:
> >> >>>>> > Not to meddle in other people's affairs, but this is probably
> >> >>>>> > valuable for
> >> >>>>> > v2 (unless v3 is due very very soon ;-))
> >> >>>>> >
> >> >>>>> > Ruben
> >> >>>>>
> >> >>>>> Back-merged at rev. 5509.
> >> >>>>>
> >> >>>>> Cheers,
> >> >>>>> Kai
> >> >>>>>
> >> >>>>>
> >> >>>>>
> >> >>>>>
> ------------------------------------------------------------------------------
> >> >>>>> LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free
> Trial
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> >> >>>>> _______________________________________________
> >> >>>>> Mingw-w64-public mailing list
> >> >>>>> Mingw-w64-public@lists.sourceforge.net
> >> >>>>> https://lists.sourceforge.net/lists/listinfo/mingw-w64-public
> >> >>>>
> >> >>>>
> >> >>>
> >> >>
> >> >
> >> >
> >> >
> >> >
> ------------------------------------------------------------------------------
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> >> >
> >>
> >>
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> >
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