#include <iostream>
#include <map>
using namespace std;
int main()
{
int x = 5;
decltype(x) y = 10;
map<int, int> m;
decltype(m) n;
decltype(m)::iterator it;
}
g++ -std=c++0x main.cpp
main.cpp: In function `int main()':
main.cpp:11: error: expected initializer before `it'
前两个decltypes工作.第三个导致编译器错误.这是这个gcc版本的问题吗？
g++ -v
Using built-in specs.
Target: x86_64-suse-linux
Configured with: ../configure --prefix=/usr --infodir=/usr/share/info --mandir=/usr/share/man --libdir=/usr/lib64 --libexecdir=/usr/lib64 --enable-languages=c,c++,objc,fortran,obj-c++,java,ada --enable-checking=release --with-gxx-include-dir=/usr/include/c++/4.3 --enable-ssp --disable-libssp --with-bugurl=http://bugs.opensuse.org/ --with-pkgversion='SUSE Linux' --disable-libgcj --disable-libmudflap --with-slibdir=/lib64 --with-system-zlib --enable-__cxa_atexit --enable-libstdcxx-allocator=new --disable-libstdcxx-pch --enable-version-specific-runtime-libs --program-suffix=-4.3 --enable-linux-futex --without-system-libunwind --with-cpu=generic --build=x86_64-suse-linux
Thread model: posix …