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  1.  
  2.     #include <stdio.h>
  3.     #include <string.h>
  4.  
  5.     int main(void) {
  6.         char string[] = "abcdefg";
  7.  
  8.         char from[] = "cd";
  9.         char to[]   = "fg";
  10.  
  11.         char *first = strstr(string, from);
  12.  
  13.         if (first == NULL) {
  14.             first = &string[0];
  15.         } else {
  16.             first += strlen(from);
  17.         }
  18.  
  19.         char *last = strstr(first, to);
  20.  
  21.         if (last == NULL) {
  22.             last = &string[strlen(string)];
  23.         }
  24.  
  25.         char *sub = calloc(strlen(string) + 1, sizeof(char));
  26.  
  27.         strncpy(sub, first, last - first);
  28.  
  29.         printf("%s\n", sub);
  30.  
  31.         free(sub);
  32.  
  33.         return 0;
  34.     }
Success #stdin #stdout 0s 2140KB
comments (?)
stdin 
Standard input is empty
stdout 
e
https://ideone.com/fpW2dO
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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