Confirmed using GCC 5.0.0 20150125 built from source (see below) and 4.7.2 (Debian 4.7.2-5; Debian Wheezy). Tested using the test case in comment 1.
Output: $ g++-5-20150125 -std=c++11 -o test62258 test62258.c -Wall && ./test62258 test62258: test62258.c:11: int main(): Assertion `!std::uncaught_exception()' failed. Aborted
$ g++-5-20150125 -v Using built-in specs. COLLECT_GCC=g++-5-20150125 COLLECT_LTO_WRAPPER=/home/user/gcc50/bin/../libexec/gcc/x86_64-unknown-linux-gnu/5.0.0/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: /home/user/gcc50build/src-gcc-5-20150125/configure --target=x86_64-unknown-linux-gnu --prefix=/home/user/gcc50build/target-x86_64-unknown-linux-gnu --program-suffix=-5-20150125 --disable-nls --enable-c99 --enable-checking=release --enable-gnu-unique-object --enable-gold --enable-languages=c,c++ --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-linker-build-id --enable-long-long --enable-multiarch --enable-multilib --enable-shared --enable-targets=all --enable-threads=posix --with-system-zlib --with-tune=generic Thread model: posix gcc version 5.0.0 20150125 (experimental) (GCC)
Confirmed using GCC 5.0.0 20150125 built from source (see below) and 4.7.2 (Debian 4.7.2-5; Debian Wheezy). Tested using the test case in comment 1.
Output: uncaught_ exception( )' failed.
$ g++-5-20150125 -std=c++11 -o test62258 test62258.c -Wall && ./test62258
test62258: test62258.c:11: int main(): Assertion `!std::
Aborted
$ g++-5-20150125 -v GCC=g++ -5-20150125 LTO_WRAPPER= /home/user/ gcc50/bin/ ../libexec/ gcc/x86_ 64-unknown- linux-gnu/ 5.0.0/lto- wrapper unknown- linux-gnu gcc50build/ src-gcc- 5-20150125/ configure --target= x86_64- unknown- linux-gnu --prefix= /home/user/ gcc50build/ target- x86_64- unknown- linux-gnu --program- suffix= -5-20150125 --disable-nls --enable-c99 --enable- checking= release --enable- gnu-unique- object --enable-gold --enable- languages= c,c++ --enable- libstdcxx- debug --enable- libstdcxx- time=yes --enable- linker- build-id --enable-long-long --enable-multiarch --enable-multilib --enable-shared --enable- targets= all --enable- threads= posix --with-system-zlib --with-tune=generic
Using built-in specs.
COLLECT_
COLLECT_
Target: x86_64-
Configured with: /home/user/
Thread model: posix
gcc version 5.0.0 20150125 (experimental) (GCC)