scc

simple c99 compiler
git clone git://git.simple-cc.org/scc
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strcat.c (190B)

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