GCC warning flag for Semantic Issue

Question

I'd like to silence Semantic Issue warning but I don't know the warning flag for this type. Do you know the flag name?

ie: #pragma GCC diagnostic ignored "-Wsequence-point"

Answer 1

#pragma GCC diagnostic can only be used with options shown by -fdiagnostics-show-option

Compile with -fdiagnostics-show-option to see whether there is some [-Wfoo] at the end of the warning message.