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Epson Bitmap Plugin Unable To Write To File Programs Upgrade To LatestEPSON Scan works perfectly until it comes to actually saving the file. Apple may provide or recommend responses as a possible solution based on the information provided; every potential issue may involve several factors not detailed in the conversations captured in an electronic forum and Apple can therefore provide no guarantee as to the efficacy of any proposed solutions on the community forums. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the. Epson Bitmap Plugin Unable To Write To File Programs Code Look MoreI would like to know if I can make my code look more idiomatic or professional, from the format of the comments to the name of the variables. Is my program robust enough For example, should I always check for null in a function that takes a pointer as a parameter Should I check for errors every time I close a file. But in case of an error (cant allocate enough memory) it returns a string literal. Im not sure about which is the best way to handle the error here. This returned string is going to be freed by the caller, but in case of an error in stringduplicate the caller will be freeing a pointer to a string literal, which is bad. BMPImage cropbmp(BMPImage image, int x, int y, int w, int h, char error). In this case, I would therefore name them bmpread, bmpcheckheader and so on. Then it is easy for the caller to see where the function belongs - aha, this is from bmp.h. Unless high portability is needed, stay with the non-standard packing for now. It is more informative and will force a necessary compiler error on a rare machine with 16-bit char. Id recommend the same type. Be very careful with external data from files that can cause undefined behavior with mis-szied allocation. Watch out for.imagesizebytes 0 as the allocation may be NULL (which is not a Not enough memory, but other concern). It would only work if duplicate fails because string is really large. Actually, at this point I think you need to decide if you just want to return NULL, or if you want to write a message to stdoutstderr and exit the program. However, if your C-program is run by a C-runtime that doesnt adhere to the standard, one shameful example would be PalmOS (Im quite sure there ought to be more), then free(NULL) would corrupt memory and crash the application. You never know with what runtime on which platform other people will run your code. And yes, my program would just crash on strcpy if malloc fails there. Provide details and share your research But avoid Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them up with references or personal experience. MathJax reference. To learn more, see our tips on writing great answers. Not the answer youre looking for Browse other questions tagged beginner c file image or ask your own question.
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