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Non-Compliant Code Example
This non-compliant code example illustrates a function called opener() that is declared as returning a value of type int. The function, however, uses this return value to indicate the return status of the function by returning values of errno. Consequently, the meaning of the return value is not as clear as it could be.
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int opener(FILE* file, int *width, int *height, int *data_offset) {
int file_w;
int file_h;
int file_o;
int offset = 0;
if (file == NULL) { return -1; }
if (fscanf(file, "%i %i %i", &file_w, &file_h, &file_o) != 3) { return -1; }
if (fsetpos(file, &offset) != 0) { return -1; }
*width = file_w;
*height = file_h;
*data_offset = file_o;
return 0;
}
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