~mcf/cproc

ref: 34ae0d48e9669687003c26f94e07fa00d12dd41f cproc/test/builtin-constant-p.c -rw-r--r-- 85 bytes
34ae0d48 — Michael Forney Add tests for char/wchar_t signedness 8 months ago 
                                                                                
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int f(void);
int x = __builtin_constant_p(1+2*3);
int y = __builtin_constant_p(f());