Question

I try to making a wrapping function around fscanf but didn’t understand why it didn’t work,

char name[255] = {0};
fscanf(inFile, "%s", &name);   // This work fine

but when I do this

int WrapFScanF(File* inFile, const char* format, ...) {

    int rv;
va_list args;

va_start(args, fmt);
rv = fscanf(file, fmt, args);
va_end(args);

return rv;
}

char name[255] = {0};
WrapFScanF(inFile, "%s", &name);   // This work fine

It didn’t work. Any ideas? Thanks!

Answer 1

You really want to read about vfscanf() . Use it instead of fscanf() when you have a va_list as va_list cannot be used like that.