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  1. #include <stdio.h>
  2.  
  3. int my_strrchr(const char *ptr, const char delimiter);
  4.  
  5. int main(void){
  6.     char arr[] = "4.1.2017.";
  7.     char delimiter = '.';
  8.  
  9.     int len;
  10.  
  11.     if( (len = my_strrchr(arr, delimiter)) > 0){
  12.         while ( arr[len] != '\0'){
  13.             arr[len] = '\0';
  14.         }
  15.         printf("%s\n", arr);
  16.     }
  17. }
  18.  
  19. int my_strrchr(const char *ptr, const char delimiter){
  20.     if (ptr == NULL ){
  21.         printf("Error, NULL Pointer\n");
  22.         return -1;
  23.     }
  24.  
  25.     if ( *ptr == '\0' ){
  26.         printf("Error, the Buffer is Empty\n");
  27.         return 0;
  28.     }
  29.  
  30.     int i = 0;
  31.     int ret = 0;
  32.  
  33.     while( ptr[i] != '\0' ){
  34.         if ( ptr[i] == delimiter ){
  35.             ret = i;
  36.         }
  37.         i++;
  38.     }
  39.  
  40.     return ret;
  41. }
Success #stdin #stdout 0s 2168KB
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Standard input is empty
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4.1.2017
https://ideone.com/qDTuEj
language:
C (gcc 8.3)
created:
8 years ago
visibility:
public

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