reading multiple files

[marsudhir]

hallo,
i am in search of solution for the following problem . i have nearly 100 files and i need to read them. how is it possible.
bye
sudhir

[DavT]

Something like this?

#include <stdio.h>

int main(void)
{
   for (i = 1; i <= 100; i++)
   {
      FILE * pFile;
      char filename[20];

      sprintf(filename, "myfile%d.dat", i);
      if ((pFile = fopen(filename, "r")) == NULL)
      {
         printf("could not open file %s\n", filename);
         exit(1);
      }

      /* .... do whatever you want to do with the file .... */

      fclose(pFile);
   }

   return 0;
}

(assumes that your files are named sensibly eg myfile1.dat, myfile2.dat, myfile3.dat ... etc.)

[Magos]

Or if you don't have any system in the filenames, use a lookup list:

#define NrOfFiles 6

const char* FileName[] = {
"MyFile1.txt",
"MyFile2.txt",
"OurFile.txt",
"Banana.txt",
"YourFile.txt",
"EveryonesFile.txt"};

...

FILE* ReadFile;

for(int i = 0; i < NrOfFiles; i++)
{
   ReadFile = fopen(FileName[i], "rb");

   ...

}

[marsudhir]

thank u guys the code is working
bye
sudhir