ref: a165af3d8406d98aaf6bb86048690ca3d4e6648d dir: /src/libscc/casecmp.c/
#include <ctype.h> #include <scc/scc.h> int casecmp(const char *s1, const char *s2) { while (*s1 && toupper(*s1) == toupper(*s2)) ++s1, ++s2; return *s1 - *s2; }