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Struct parametr in gcc function

I wrote the code and it works fine with the g ++ compiler, but when I use gcc it throws an error Unknow type name 'Image' in void load_image(FILE*, Image*);

Here is a portion of my header file:

struct Image {
    struct FileHeader file_header;
    struct InfoHeader info_header;
    struct RGBQuads rgbquads;
    struct Pixel** pixel;
    struct Pixel* pixels_array;
};

void load_image(FILE*, Image*);

So I can't figure out what the problem is. I tried to write using C rules.

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2 answers


It seems that you are compiling the program as a C program. If so, you need to write

void load_image(FILE*, struct Image*);


Another approach is to use a typedef for the struct. for example

typedef struct Image {
    struct FileHeader file_header;
    struct InfoHeader info_header;
    struct RGBQuads rgbquads;
    struct Pixel** pixel;
    struct Pixel* pixels_array;
} Image;

void load_image(FILE*, Image*);
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It should be

void load_image(FILE*,struct Image*);


Reuse

typedef struct Image NEW_NAME;
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