fopen() not working in C

Question

I got it fixed. Thanks for all the help.

I've now looked through quite a few articles, forum posts and topics here; however, none have actually fixed my issue. The problem is that my fopen("file.txt", "w"); doesn't create the file.

Code:

//
//Includes
#include <stdio.h>

int main ()
{
    FILE *receipt = fopen("receipt.txt", "w");

    //Create file
    fprintf(receipt, "Price: %.2f$", purchase);
    fprintf(receipt, "\nDiscount: %.2f$", discount);
    fprintf(receipt, "\nTax %%: %.2f%%", tax_pct);
    fprintf(receipt, "\nTaxes: %.2f$", tax);
    fprintf(receipt, "\nTotal Price: %.2f$", end_price);
    fprintf(receipt, "\n\nEnd of Receipt.");
    fclose(receipt);

    return 0;
}

I've tried throwing in

if(!receipt) {
    printf("Error!");
}
else {
    fprintf(blabla);
}

But to no avail.

It simply does not create the file :/ Running in Xcode and on Mac. No warnings/notices or otherwise stuff to give me any idea of what is wrong.

*I tried adding system("pwd") to figure out if it didn't save it where it should save it, but I have a hard time actually finding that directory (I don't know if it's temp, but even so the file should be there?). Obviously I wasn't questioning the actual validity of the library, duh, implicit that it was the fopen I was using not giving me what I expected?

I can't make perror give me any useful information. Everything would appear to work as it should; I just don't get a file. Please avoid any more smartass comments, if you don't want to help just don't write.*

Also, I removed all code, but the actual fopen() and fprintf().

Answer 1

Try perror. It's possible you don't have permissions or something like that.

FILE *receipt = fopen("receipt.txt", "w");
if (!receipt)
    perror("fopen");