fork(1) download 
  1. #include <stdio.h>
  2.  
  3. char *search(char *s,char *p);
  4.  
  5. int main(){
  6.     printf("NULL %s\n",     search("abcdefg","aaa"));
  7.     printf("abcdefg %s\n",  search("abcdefg","a"));
  8.     printf("g %s\n",        search("abcdefg","g"));
  9.     printf("NULL %s\n",     search("abcdefg","ac"));
  10.     printf("defg %s\n",     search("abcdefg","de"));
  11.     printf("fg %s\n",       search("abcdefg","fg"));
  12.     printf("NULL %s\n",     search("abcdefg","df"));
  13.     printf("abcdefg %s\n",  search("abcdefg",""));
  14.     printf("未定義 %s\n",   search("abcdefg",NULL));/* 未定義 */
  15.     printf("未定義 %s\n",   search(NULL,"a"));/* 未定義 */
  16.  
  17.     return 0;
  18. }
  19.  
  20. char *search(char *s,char *p){
  21.     return s&&p?*p?*s?((*p==*s)&&(s+1==search(s+1,p+1)))?s:search(s+1,p):NULL:s:NULL;
  22. }
  23.  
Success #stdin #stdout 0s 2248KB
comments (?)
stdin 
Standard input is empty
stdout 
NULL (null)
abcdefg abcdefg
g g
NULL (null)
defg defg
fg fg
NULL (null)
abcdefg abcdefg
未定義 (null)
未定義 (null)
https://ideone.com/t49wAw
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!