windows gcc编译C默认使用哪个标准

查看windows本机gcc版本(我安装的是mingw32)

C:\Program Files\Go\src\democgo\pointerfunc\std>gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=E:/mingw64/bin/../libexec/gcc/x86_64-w64-mingw32/7.3.0/lto-wrapper.exe
Target: x86_64-w64-mingw32
Configured with: ../../../src/gcc-7.3.0/configure --host=x86_64-w64-mingw32 --build=x86_64-w64-mingw32 --target=x86_64-w
64-mingw32 --prefix=/mingw64 --with-sysroot=/c/mingw730/x86_64-730-posix-sjlj-rt_v5-rev0/mingw64 --enable-shared --enabl
e-static --enable-targets=all --enable-multilib --enable-languages=c,c++,fortran,lto --enable-libstdcxx-time=yes --enabl
e-threads=posix --enable-libgomp --enable-libatomic --enable-lto --enable-graphite --enable-checking=release --enable-fu
lly-dynamic-string --enable-version-specific-runtime-libs --enable-libstdcxx-filesystem-ts=yes --enable-sjlj-exceptions
--disable-libstdcxx-pch --disable-libstdcxx-debug --enable-bootstrap --disable-rpath --disable-win32-registry --disable-
nls --disable-werror --disable-symvers --with-gnu-as --with-gnu-ld --with-arch-32=i686 --with-arch-64=nocona --with-tune
-32=generic --with-tune-64=core2 --with-libiconv --with-system-zlib --with-gmp=/c/mingw730/prerequisites/x86_64-w64-ming
w32-static --with-mpfr=/c/mingw730/prerequisites/x86_64-w64-mingw32-static --with-mpc=/c/mingw730/prerequisites/x86_64-w
64-mingw32-static --with-isl=/c/mingw730/prerequisites/x86_64-w64-mingw32-static --with-pkgversion='x86_64-posix-sjlj-re
v0, Built by MinGW-W64 project' --with-bugurl=https://sourceforge.net/projects/mingw-w64 CFLAGS='-O2 -pipe -fno-ident -I
/c/mingw730/x86_64-730-posix-sjlj-rt_v5-rev0/mingw64/opt/include -I/c/mingw730/prerequisites/x86_64-zlib-static/include
-I/c/mingw730/prerequisites/x86_64-w64-mingw32-static/include' CXXFLAGS='-O2 -pipe -fno-ident -I/c/mingw730/x86_64-730-p
osix-sjlj-rt_v5-rev0/mingw64/opt/include -I/c/mingw730/prerequisites/x86_64-zlib-static/include -I/c/mingw730/prerequisi
tes/x86_64-w64-mingw32-static/include' CPPFLAGS=' -I/c/mingw730/x86_64-730-posix-sjlj-rt_v5-rev0/mingw64/opt/include -I/
c/mingw730/prerequisites/x86_64-zlib-static/include -I/c/mingw730/prerequisites/x86_64-w64-mingw32-static/include' LDFLA
GS='-pipe -fno-ident -L/c/mingw730/x86_64-730-posix-sjlj-rt_v5-rev0/mingw64/opt/lib -L/c/mingw730/prerequisites/x86_64-z
lib-static/lib -L/c/mingw730/prerequisites/x86_64-w64-mingw32-static/lib '
Thread model: posix
gcc version 7.3.0 (x86_64-posix-sjlj-rev0, Built by MinGW-W64 project)