gcc optimization options - Serbipunk/notes GitHub Wiki

https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html

https://clang.llvm.org/docs/CommandGuide/clang.html

NRVO

https://stackoverflow.com/a/29128776

c++20 enable auto NRVO implicit

Move or Named Return Value Optimization (NRVO)?