when i try to call a .c file in antother i got a error for multidecalaration of main file.i prepare for a medical shop management using c language what can i do???
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You don't directly call a .c file. If you have functions defined in an external file, you create a header file containing the function prototype. This header file is included in any file that uses the function (and in the .c file that defines the function). The compiler and linker …
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