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  1.  
  2. #include <stdlib.h>
  3. #include <stdio.h>
  4. #include <string.h>
  5.  
  6. int str_cut(char *str, int begin, int len)
  7. {
  8.     int l = strlen(str);
  9.  
  10.     if (len < 0) len = l - begin;
  11.     if (begin + len > l) len = l - begin;
  12.     memmove(str + begin, str + begin + len, l - len + 1);
  13.  
  14.     return len;
  15. }
  16.  
  17. int main(void)
  18. {
  19.     char str[] = "The quick brown fox";
  20.  
  21.     puts(str);
  22.  
  23.     str_cut(str, 10, 6);    // "The quick [brown ]fox"
  24.     puts(str);              // "The quick fox"
  25.  
  26.     str_cut(str, 3, 6);     // "The [quick ]fox"
  27.     puts(str);              // "The fox"
  28.  
  29.     str_cut(str, 3, -1);    // "The[ fox]"
  30.     puts(str);              // "The"
  31.  
  32.     return 0;
  33. }
  34.  
Success #stdin #stdout 0s 9424KB
comments (?)
stdin 
Standard input is empty
stdout 
The quick brown fox
The quick fox
The fox
The
https://ideone.com/wqc3KZ
language:
C (gcc 8.3)
created:
7 years ago
visibility:
public

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