Filstørrelse

#include <stdio.h>
#include <fcntl.h>
#include <io.h>

void main()
{
int handle = open("C:\\ENFIL.txt",O_RDONLY);
printf("file length in bytes: %ld\n", filelength(handle));
close(handle);
}

Eller brug flg. funktion (ANSI C, dvs. kører på alle platforme):

long GetFileSize(char* FileName)
{
    FILE* pSrcFile;
    long lSize;

    pSrcFile = fopen(FileName, "r+b");
    fseek(pSrcFile, 0, SEEK_END);
    lSize = ftell(pSrcFile);
    fclose(pSrcFile);
    return lSize;
}

int main()
{
  long fsize = GetFileSize("c:/MyFile.txt");
  printf("File size: %d\n", fsize);
  return 0;
}

tak for svarene begge 2.