[Bug c++/55015] Lambda functions not found at link time when declared in an inline function

[spam_hole at shaw dot ca]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55015



Robert Xiao <spam_hole at shaw dot ca> changed:



           What    |Removed                     |Added

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                 CC|                            |spam_hole at shaw dot ca



--- Comment #2 from Robert Xiao <spam_hole at shaw dot ca> 2012-10-22 05:02:01 
UTC ---

Minimal reproducible testcase:



    typedef void (*VoidFunc)();

    inline VoidFunc GetFunc() { return [](){}; }

    int main() { VoidFunc func = GetFunc(); }



Compiled with gcc version 4.7.2 (MacPorts gcc47 4.7.2_2). Output:



$ g++-mp-4.7 test.cpp -std=c++11

Undefined symbols for architecture x86_64:

  "GetFunc()::{lambda()#1}::_FUN()", referenced from:

      GetFunc()::{lambda()#1}::operator void (*)()() const in cciEeUag.o

ld: symbol(s) not found for architecture x86_64

collect2: error: ld returned 1 exit status