Question

int main()
{
    int i;
    FILE *list,*file;
    char temp[30];
    list=fopen("filelist","rb");
    while(fgets(temp,30,list)!=NULL)
    {
        file=fopen(temp,"r");
    {
    fclose(list);
    return 0;
}

This is my code I basically want to open all files in filelist but my fopen call (exept the first one always returns a NULL am i missing something also this is my filelist

file1
file2
file3
file4

also i dont use file extensions and files exist in the same directory wtih executable.

Answer 1

fgets() stores the new-line character into the buffer it is populating so you need to remove it before calling fopen() within the while.

From the linked reference page for fgets():

Reads at most count – 1 characters from the given file stream and stores them in str. The produced character string is always NULL-terminated. Parsing stops if end-of-file occurs or a newline character is found, in which case str will contain that newline character.

Example code to remove the new-line:

char* nl = strrchr(temp, '\n');
if (nl)  *nl = 0;