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       tolower.c - scc - simple c99 compiler
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       ---
       tolower.c (116B)
       ---
            1 #define __USE_MACROS
            2 #include <ctype.h>
            3 #undef tolower
            4 
            5 int
            6 tolower(int c)
            7 {
            8         return (isupper(c)) ? c | 0x20 : c;
            9 }