[Bug libgcc/61546] MINGW : __int64 is #define'd as 'long long'

[baskanov at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61546

--- Comment #2 from Anton Baskanov baskanov at gmail dot com ---
(In reply to Richard Biener from comment #1)
 Well,
 
   long long(123456789012345678);
 
 isn't valid C++.  Either use cast syntax or provide a typedef.

Yes, you are right, but why libgcc uses #define for __int64 instead of typedef?
This is confusing.

[Bug libgcc/61546] MINGW : __int64 is #define'd as 'long long'

[baskanov at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61546

--- Comment #4 from Anton Baskanov baskanov at gmail dot com ---
(In reply to Ozkan Sezer from comment #3)
 (In reply to Anton Baskanov from comment #2)
  
   why libgcc uses #define for __int64 instead of typedef?
 
 MinGW and MinGW-w64 use #define instead of a typedef, because that allows
 for uses like 'signed __int64' and 'unsigned __int64', i.e. __int64 isn't
 native to gcc.

OK, got it. Thanks for the answer!

[Bug libgcc/61546] New: MINGW : __int64 is #define'd as 'long long'

[baskanov at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61546

Bug ID: 61546
   Summary: MINGW : __int64 is #define'd as 'long long'
   Product: gcc
   Version: 4.8.2
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: libgcc
  Assignee: unassigned at gcc dot gnu.org
  Reporter: baskanov at gmail dot com

Created attachment 32961
  -- https://gcc.gnu.org/bugzilla/attachment.cgi?id=32961action=edit
Preprocessed input

The following input fails to compile:


#include cstdlib

int main()
{
__int64(123456789012345678);
return EXIT_SUCCESS;
}


a-baskanov@uk-rnd-10:~/src/int64$ i686-w64-mingw32-g++ -v -save-temps -static
int64.cpp 
Using built-in specs.
COLLECT_GCC=i686-w64-mingw32-g++
COLLECT_LTO_WRAPPER=/usr/lib/gcc/i686-w64-mingw32/4.8/lto-wrapper
Target: i686-w64-mingw32
Configured with: ../../src/configure --build=x86_64-linux-gnu --prefix=/usr
--includedir='/usr/include' --mandir='/usr/share/man'
--infodir='/usr/share/info' --sysconfdir=/etc --localstatedir=/var
--libexecdir='/usr/lib/gcc-mingw-w64' --disable-maintainer-mode
--disable-dependency-tracking --prefix=/usr --enable-shared --enable-static
--disable-multilib --with-system-zlib --libexecdir=/usr/lib
--without-included-gettext --libdir=/usr/lib --enable-libstdcxx-time=yes
--with-tune=generic --enable-version-specific-runtime-libs
--enable-threads=posix --enable-fully-dynamic-string --enable-sjlj-exceptions
--enable-libgomp --enable-languages=c,c++,fortran,objc,obj-c++ --enable-lto
--with-plugin-ld --target=i686-w64-mingw32
--with-gxx-include-dir=/usr/include/c++/4.8
--with-as=/usr/bin/i686-w64-mingw32-as --with-ld=/usr/bin/i686-w64-mingw32-ld
Thread model: posix
gcc version 4.8.2 (GCC) 
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-static' '-mtune=generic'
'-march=pentiumpro'
 /usr/lib/gcc/i686-w64-mingw32/4.8/cc1plus -E -quiet -v -D_REENTRANT int64.cpp
-mtune=generic -march=pentiumpro -fpch-preprocess -o int64.ii
ignoring nonexistent directory
/usr/lib/gcc/i686-w64-mingw32/4.8/../../../../i686-w64-mingw32/sys-include
#include ... search starts here:
#include ... search starts here:
 /usr/include/c++/4.8
 /usr/include/c++/4.8/i686-w64-mingw32
 /usr/include/c++/4.8/backward
 /usr/lib/gcc/i686-w64-mingw32/4.8/include
 /usr/lib/gcc/i686-w64-mingw32/4.8/include-fixed
 /usr/lib/gcc/i686-w64-mingw32/4.8/../../../../i686-w64-mingw32/include
End of search list.
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-static' '-mtune=generic'
'-march=pentiumpro'
 /usr/lib/gcc/i686-w64-mingw32/4.8/cc1plus -fpreprocessed int64.ii -quiet
-dumpbase int64.cpp -mtune=generic -march=pentiumpro -auxbase int64 -version -o
int64.s
GNU C++ (GCC) version 4.8.2 (i686-w64-mingw32)
compiled by GNU C version 4.8.2, GMP version 5.1.2, MPFR version
3.1.2-p3, MPC version 1.0.1
warning: GMP header version 5.1.2 differs from library version 5.1.3.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU C++ (GCC) version 4.8.2 (i686-w64-mingw32)
compiled by GNU C version 4.8.2, GMP version 5.1.2, MPFR version
3.1.2-p3, MPC version 1.0.1
warning: GMP header version 5.1.2 differs from library version 5.1.3.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: cfbaee3c6c337b4507631fc7f47e4864
int64.cpp: In function ‘int main()’:
int64.cpp:5:2: error: expected primary-expression before ‘long’
  __int64(123456789012345678);
  ^
int64.cpp:5:2: error: expected ‘;’ before ‘long’