scc

simple c99 compiler
git clone git://git.simple-cc.org/scc
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strcat.c (186B)

      1 #include <string.h>
      2 
      3 #undef strcat
      4 
      5 char *
      6 strcat(char *restrict s1, const char *restrict s2)
      7 {
      8 	char *ret = s1;
      9 
     10 	while (*s1)
     11 		++s1;
     12 
     13 	while ((*s1++ = *s2++) != 0)
     14 		;
     15 
     16 	return ret;
     17 }