Capitalize first letter of every word in .txt file

Code:

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#include <stdio.h>
#include <ctype.h>

int main(void)
{
    FILE* fin;
    FILE* fout;
    char inputfname[256];
    char outputfname[256];
    char currentchar;
    char previouschar = ' ';

    printf("Enter the input filename\n");
    scanf("%s", inputfname);
    printf("Enter the output filename\n");
    scanf("%s", outputfname);

    fin = fopen(inputfname, "r");
    fout = fopen(outputfname, "w");

    while(!feof(fin))
    {
        currentchar = fgetc(fin);
        if(!isalpha(previouschar) && isalpha(currentchar))
        {
            currentchar = toupper(currentchar);
            fputc(currentchar, fout);         
        }
        currentchar = previouschar;
    }

    system("PAUSE");
    return 0;
}

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As the title says. I can't get this to work. I know I'm making a stupid mistake somewhere and I can't find it. And yea I know system("PAUSE"); shouldn't be used but it's what my prof. insists on.

How does it not work?

Incidentally, you should #include <stdlib.h> for system() and feof() should not be used to control a loop - use the result of fgetc() instead.

It capitalizes every letter in the .txt file.

You probably want to use fputc() on every char that is read, not just those that are capitalised.

And you also want

Code:

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previouschar = currentchar;

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instead of

Code:

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currentchar = previouschar;

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Well I forgot to close the files ;/ but that was never the problem anyway. *Sigh* I know what you mean about fputc for every char, I just can't figure out how to implement it.

Quote:

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I know what you mean about fputc for every char, I just can't figure out how to implement it.

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Move that line to after the if block.

Additionally, read the FAQ on how to use feof() correctly.

Thanks guys I figured it out now. Sometimes the simplest problems can be a real pain lol.

Last week a "hello world" question ended up being a 100+ post thread. So don't feel too bad.