Compound literals were never formally added to C++.
Still, that hasn't stopped various front-ends (including GCC and Clang) from adding them to their C++ dialects. My code compiles with Clang, but not GCC. GCC complains that it's not OK to take the address of the array compound literal.
FWIW, C99 makes it clear that the object has automatic storage duration lasting until the end of the enclosing block. i.e. There shouldn't be an issue with dangling pointers.
Still, that hasn't stopped various front-ends (including GCC and Clang) from adding them to their C++ dialects. My code compiles with Clang, but not GCC. GCC complains that it's not OK to take the address of the array compound literal.
FWIW, C99 makes it clear that the object has automatic storage duration lasting until the end of the enclosing block. i.e. There shouldn't be an issue with dangling pointers.