scc

simple c99 compiler
git clone git://git.simple-cc.org/scc
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0011-strcat.c (456B)


      1 #include <assert.h>
      2 #include <stdio.h>
      3 #include <string.h>
      4 
      5 /*
      6 output:
      7 testing
      8 ok
      9 end:
     10 */
     11 
     12 int
     13 main(void)
     14 {
     15 	char *s, buf[40];
     16 
     17 	puts("testing");
     18 	strcpy(buf, "case1:");
     19 	s = strcat(buf, "ok");
     20 	assert(s == buf);
     21 	assert(!strcmp(s, "case1:ok"));
     22 
     23 	strcpy(buf, "");
     24 	s = strcat(buf, "ok");
     25 	assert(s == buf);
     26 	assert(!strcmp(s, "ok"));
     27 
     28 	strcpy(buf, "case1:");
     29 	strcat(buf, "");
     30 	assert(s == buf);
     31 	assert(!strcmp(s, "case1:"));
     32 
     33 	puts("ok");
     34 
     35 	return 0;
     36 }