fork download
copy 
  1. #include <stdio.h>
  2.  
  3. int main(void)
  4. {
  5.   FILE *fp1, *fp2;
  6.   char fname1[256], fname2[256], fname3[256], str[256];
  7.   int ch, line, col, linecnt=1, colcnt=1, out=0;
  8.  
  9.   printf("filename:"); scanf("%s", fname1);
  10.   if ((fp1 = fopen(fname1, "rt")) == NULL) {
  11.     printf("Can't open input file(%s)\n", fname1);
  12.     return 1;
  13.   }
  14.   strcpy(fname2, fname1);
  15.   strcat(fname2, ".out");
  16.   if ((fp2 = fopen(fname2, "w")) == NULL) {
  17.     printf("Can't open output file(%s)\n", fname2);
  18.     fclose(fp1);
  19.     return 1;
  20.   }
  21.  
  22.   strcpy(fname3, fname1);
  23.   strcat(fname3, ".bak");
  24.   remove(fname3);
  25.  
  26.   printf("insert string:"); scanf("%s", str);
  27.   printf("insert line:"); scanf("%d", &line);
  28.   printf("insert col:"); scanf("%d", &col);
  29.  
  30.   while ((ch = fgetc(fp1)) != EOF) {
  31.     if (out == 0 && line == linecnt && col == colcnt){
  32.       fprintf(fp2,"%s",str);
  33.       out = 1;
  34.     }
  35.     fputc(ch,fp2);
  36.     if (ch == '\n') {
  37.       linecnt++;
  38.       colcnt = 1;
  39.     }else{
  40.       colcnt++;
  41.     }
  42.   }
  43.  
  44.   fclose(fp1);
  45.   fclose(fp2);
  46.  
  47.   rename(fname1, fname3);
  48.   rename(fname2, fname1);
  49.  
  50.   return 0;
  51. }
  52.  
Runtime error #stdin #stdout 0s 2428KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
filename:Can't open input file(�t��)
https://ideone.com/xOpfUA
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!