http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52688
jared.cantwell at gmail dot com changed:
What |Removed |Added
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CC| |jared.cantwell at gmail dot
| |com
--- Comment #8 from jared.cantwell at gmail dot com 2013-03-01 19:53:56 UTC ---
I just came across the same issue in the context of lambdas (for posterity,
since I spent time thinking this was specific to lambdas).
Consider the following source code:
---------------------------------------------------
template<typename T>
void Foo()
{
static int i = 5;
auto bar = [&]() { ++i; };
bar();
}
int main()
{
Foo<int>();
}
---------------------------------------------------
GCC 4.7.0 produces the following error:
# g++-4.7 -std=c++11 main.cpp
/tmp/ccbZwBzT.o: In function `void Foo<int>()::{lambda()#1}::operator()()
const':
main.cpp:(.text+0x1a): undefined reference to `i'
main.cpp:(.text+0x23): undefined reference to `i'
collect2: error: ld returned 1 exit status
However, when Foo is not a template there is no error.
