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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <string.h>
  4.  
  5. #define log(x) printf(#x": %d\n",x)
  6.  
  7. int main(int argc, char *args) {
  8. 	char s[] = "string";
  9.  
  10. 	log(sizeof(s));
  11. 	log(strlen(s));
  12.  
  13. 	int i;
  14. 	for (i=0; i<strlen(s); i++) printf("s[%d]: %c(%d)\n", i, s[i], s[i]);
  15. 	puts("");
  16.  
  17. 	puts("Null character");
  18. 	log(s[strlen(s)]); // equal s[6]
  19. 	log(NULL);
  20. 	log('\0');
  21. 	log(0);
  22.  
  23. 	exit(EXIT_SUCCESS);
  24. }
Success #stdin #stdout 0s 2248KB
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stdin
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Standard input is empty
stdout
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sizeof(s): 7
strlen(s): 6
s[0]: s(115)
s[1]: t(116)
s[2]: r(114)
s[3]: i(105)
s[4]: n(110)
s[5]: g(103)

Null character
s[strlen(s)]: 0
NULL: 0
'\0': 0
0: 0
https://ideone.com/pmeqet
language:
C (gcc 8.3)
created:
12 years ago
visibility:
public

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