Thread: Problems opening file

I'm having a problem opening a file and I'm thinking it's because of directories or something. I'm working on an image loader and i have a file test.bmp, but whenever I call the function, it fails because fopen is returning 0 meaning it can't find the file, I know it's able to be opened, because I copied the exact same code into a function in the main cpp file and it opened just fine. I have the image loader in a folder called loaders and also in a folder called loaders in my Dev-C++ project. I'm guessing that's causing a problem? Putting the image in the loaders folder didn't work, putting ../test.bmp as the string didn't either. Any idea why it can't find the file, and how I can fix it? Thanks in advance.

Sorry for the late reply, been busy and haven't had time to check this. Here's the function, LIMAGE is a struct that contains width, height, type and a char* to hold image data.

Code:

LIMAGE BMPLoader::loadBMP(const char* filename) {
    struct {
        unsigned short int type;
        unsigned int filesize;
        unsigned int reserved;
        unsigned int offset;
    } header;
    struct {
        unsigned int headersize;
        unsigned int width, height;
        unsigned short int planes;
        unsigned short int bitsppx;
        unsigned int compression, imagesize, hres, vhres, numcolors, importantcols;
    } infoheader;
    char* palette = 0;
    char* imaged = 0;
    LIMAGE image = {0, 0, 0, 0};
    if (filename == 0) return image;
    FILE* file = 0;
    file = fopen(filename, "rb");
    if (file == 0) return image;
}

That is in loaders\bmploader.cpp. In the main CPP, in my init function I have this:

Code:

LIMAGE temp = BMPLoader::loadBMP("test.bmp");

I do a check and temp contains all zeros. I did a test within in the function earlier, the filename was going through fine, for some reason fopen can't locate the file. Any ideas?

Yes it is actually, but I copied the same code to the main cpp and it worked perfectly fine. For some reason the folders just mess it up or something. But I'm gonna try putting it in a spaceless-named folder and see if it works.
Nope, didn't work.

What system are you using . . . oh yes, "Dev-C++ on Windows". Try "./filename", although that usually only causes a problem on Linux.

Try putting the whole path in (ie, "C:\My Documents\files\filename.ext").

[edit]
Or rather "C:\\My Documents\\files\\filename.ext"
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