Predefined variable containing a character string of the "unmangled" name of the C++ function being compiled.
static const char __PRETTY_FUNCTION__[] = " function-name ";
The compiler implicitly defines this variable at the beginning of each function if the function refers to __PRETTY_FUNCTION__ . This name, function-name , is the same identifier that appears in source code, not the "mangled" identifier that the compiler and linker use. The C++ compiler "mangles" a function name by appending extra characters to the function's identifier to denote the function's return type and the types of its parameters.
The ISO/IEC 14882:2003 C++ standard does not specify this symbol.