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Subject: Different GCC's on cygwin?? My works as the original, dieters not ?

Author: Daniel Mehrmannn

Date: 14:30:39 03/29/05

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On March 29, 2005 at 06:46:53, Dieter Buerssner wrote:

>On March 29, 2005 at 02:39:09, Fabien Letouzey wrote:
>
>> What is the
>>compiler "define" for (all versions of) MinGW?
>
>From the list of predefined macros (cpp -dM):
>
[...]
>The may change, when -ansi and/or -pedantic flags are given. I did not check it,
>but I would guess, that at least those starting with double underscore will
>still be defined (they belong to the compiler namespace and cannot be in
>contradiction with the C Standard).
>
>Regards,
>Dieter

Hello Dieter,

i don't know what migwin gcc version you're using but my version works exactly
as the original gcc and don't understand MSVC 6 predefined marcos as well as
__int64

daniel@tron ~
$ gcc -v
Reading specs from /usr/lib/gcc-lib/i686-pc-cygwin/3.3.3/specs
Configured with: /gcc/gcc-3.3.3-3/configure --verbose --prefix=/usr
--exec-prefix=/usr --sysconfdir=/etc --libdir=/usr/lib --libexecdir=/usr/lib
--mandir=/usr/share/man --infodir=/usr/share/info
--enable-languages=c,ada,c++,d,f77,java,objc,pascal --enable-nls
--without-included-gettext --enable-libgcj --with-system-zlib
--enable-interpreter --enable-threads=posix --enable-java-gc=boehm
--enable-sjlj-exceptions --disable-version-specific-runtime-libs
--disable-win32-registry
Thread model: posix
gcc version 3.3.3 (cygwin special)

daniel@tron ~
$ cpp -dM <t.c|grep -i win32
#define __CYGWIN32__ 1

No WIN32 define and 64 bit works as long long.
daniel@tron ~


daniel@tron ~
$ cpp -dM <t.c
#define __DBL_MIN_EXP__ (-1021)
#define __FLT_MIN__ 1.17549435e-38F
#define _X86_ 1
#define __CHAR_BIT__ 8
#define __WCHAR_MAX__ 65535U
#define __DBL_DENORM_MIN__ 4.9406564584124654e-324
#define __FLT_EVAL_METHOD__ 2
#define __unix__ 1
#define unix 1
#define __i386__ 1
#define __SIZE_TYPE__ unsigned int
#define __DBL_MIN_10_EXP__ (-307)
#define __FINITE_MATH_ONLY__ 0
#define __FLT_RADIX__ 2
#define __LDBL_EPSILON__ 1.08420217248550443401e-19L
#define _stdcall __attribute__((__stdcall__))
#define __SHRT_MAX__ 32767
#define __LDBL_MAX__ 1.18973149535723176502e+4932L
#define __CYGWIN__ 1
#define __unix 1
#define __LDBL_MAX_EXP__ 16384
#define __LONG_MAX__ 2147483647L
#define __SCHAR_MAX__ 127
#define __DBL_DIG__ 15
#define __USER_LABEL_PREFIX__ _
#define __STDC_HOSTED__ 1
#define __stdcall __attribute__((__stdcall__))
#define __LDBL_MANT_DIG__ 64
#define __FLT_EPSILON__ 1.19209290e-7F
#define __tune_i686__ 1
#define __LDBL_MIN__ 3.36210314311209350626e-4932L
#define __WCHAR_TYPE__ short unsigned int
#define __FLT_DIG__ 6
#define __FLT_MAX_10_EXP__ 38
#define __INT_MAX__ 2147483647
#define __FLT_MAX_EXP__ 128
#define __DECIMAL_DIG__ 21
#define __DBL_MANT_DIG__ 53
#define __WINT_TYPE__ unsigned int
#define _cdecl __attribute__((__cdecl__))
#define __LDBL_MIN_EXP__ (-16381)
#define __LDBL_MAX_10_EXP__ 4932
#define __DBL_EPSILON__ 2.2204460492503131e-16
#define __DBL_MAX__ 1.7976931348623157e+308
#define __tune_pentiumpro__ 1
#define __fastcall __attribute__((__fastcall__))
#define _fastcall __attribute__((__fastcall__))
#define __CYGWIN32__ 1
#define __USING_SJLJ_EXCEPTIONS__ 1
#define __DBL_MAX_EXP__ 1024
#define __FLT_DENORM_MIN__ 1.40129846e-45F
#define __LONG_LONG_MAX__ 9223372036854775807LL
#define __FLT_MAX__ 3.40282347e+38F
#define __GXX_ABI_VERSION 102
#define __FLT_MIN_10_EXP__ (-37)
#define __FLT_MIN_EXP__ (-125)
#define i386 1
#define __DBL_MAX_10_EXP__ 308
#define __LDBL_DENORM_MIN__ 3.64519953188247460253e-4951L
#define __DBL_MIN__ 2.2250738585072014e-308
#define __PTRDIFF_TYPE__ int
#define __LDBL_MIN_10_EXP__ (-4931)
#define __REGISTER_PREFIX__
#define __cdecl __attribute__((__cdecl__))
#define __LDBL_DIG__ 18
#define __NO_INLINE__ 1
#define __i386 1
#define __FLT_MANT_DIG__ 24
#define __VERSION__ "3.3.3 (cygwin special)"
#define __declspec(x) __attribute__((x))

daniel



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