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  1. #include <stdio.h> 
  2. #include <stdlib.h> 
  3. #include <string.h> 
  4.  
  5. char *strreplace(char *out,const char *in,const char *old,const char *new); 
  6.  
  7. int main(void){ 
  8.     const char *in = "Das ist eine faß faß Beute.", *old = "ß", *new = "ss";
  9.     char out[1000];
  10.     puts(strreplace(out,in,old,new)); 
  11.     return 0; 
  12. } 
  13.  
  14. char *strreplace(char *out,const char *in,const char *old,const char *new){ 
  15. 	strcpy(out,in);
  16.     // Anfänger sollten immer for benutzen, while ist was für Profis 
  17.     for(char *pos = strstr(out, old); pos!=NULL; pos = strstr(out, old)) 
  18.     { 
  19.         memmove(pos+strlen(new),pos+strlen(old),strlen(pos+strlen(old))+1); /* Restverschiebung */
  20.         memcpy(pos,new,strlen(new));
  21.     }
  22.     return out;
  23. }	
  24.  
Success #stdin #stdout 0s 9432KB
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Standard input is empty
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Das ist eine fass fass Beute.
https://ideone.com/vbApZD
language:
C99 (gcc 8.3)
created:
6 years ago
visibility:
public

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