https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62229
Bug ID: 62229
Summary: Broken uniform initialization when using std::string
ctor
Product: gcc
Version: 4.9.1
Status: UNCONFIRMED
Severity: major
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: tnozicka at gmail dot com
Hi,
IMHO this two examples should have same result, but ...
// A
std::string s1{10, '\0'};
std::cout << s1.length() << std::endl; // prints 2 - wrong
// B
std::string s2(10, '\0');
std::cout << s2.length() << std::endl; // prints 10 - right
Probable reason is, that A is preferring ctor version with
std::initializer_list, but that version (AFAIK) should be invoked as:
std::string s1{{10, '\0'}};
=== g++ flags ===
-std=c++14 -Wall -Wextra
=== configure ===
Using built-in specs.
COLLECT_GCC=/opt/szn/bin/g++-4.9
COLLECT_LTO_WRAPPER=/opt/szn/lib/gcc/x86_64-linux-gnu/4.9.1/lto-wrapper
Target: x86_64-linux-gnu
Configured with: /home/tomas/packages/gcc/gcc-4.9.1/configure --prefix=/opt/szn
--program-suffix=-4.9 --enable-languages=c++ --disable-multilib --enable-shared
--enable-threads=posix --enable-checking=release --enable-__cxa_atexit
--enable-gnu-unique-object --enable-linker-build-id
--with-linker-hash-style=gnu --enable-plugin --with-tune=generic
--enable-libstdcxx-time=yes --enable-libstdcxx-debug
--enable-version-specific-runtime-libs --enable-objc-gc --enable-clocale=gnu
--disable-install-libiberty --build=x86_64-linux-gnu --host=x86_64-linux-gnu
--target=x86_64-linux-gnu --libdir=/opt/szn/lib --libexecdir=/opt/szn/lib
--infodir=/opt/szn/share/info-gcc-4.9 --localedir=/opt/szn/share/locale-gcc-4.9
--mandir=/opt/szn/share/man-gcc-4.9
--with-gxx-include-dir=/opt/szn/include/c++/4.9
Thread model: posix
gcc version 4.9.1 (GCC)
