multiple-inclusions

Linking .h files with .c with #ifdef header guards

不羁岁月 提交于 2019-11-28 08:29:35
im having trouble linking .h and .c files, i've also read some threads regarding this problem and all of them is a bit vague and still i can't fully grasp the concept of it, and im having a lot of linking problems, Say i have b.c and b.h which i will use in a.c , and im confused whether to include b.h both a.c and b.c cuz b.c itself needs to know the structure defined in b.h, i have some function which has its prototype in b.h and is defined in b.c which also use the structure in b.h, im am not including b.h in b.c cuz as what i know b.h is more like an interface to a.c which will use the

Linking .h files with .c with #ifdef header guards

送分小仙女□ 提交于 2019-11-27 01:56:12
问题 im having trouble linking .h and .c files, i've also read some threads regarding this problem and all of them is a bit vague and still i can't fully grasp the concept of it, and im having a lot of linking problems, Say i have b.c and b.h which i will use in a.c , and im confused whether to include b.h both a.c and b.c cuz b.c itself needs to know the structure defined in b.h, i have some function which has its prototype in b.h and is defined in b.c which also use the structure in b.h, im am

Why aren't my compile guards preventing multiple definition inclusions?

喜你入骨 提交于 2019-11-26 19:43:46
I have a header file x.h which is included by more than one *.c source files. This header file has some structure variables defined. I have put multiple inclusion prevention guard at the beginning of the header file as: #ifndef X_H #define X_H ... .. //header file declarations and definitons. #endif//X_H On building I get linker errors related to multiple definitions. I understand the problem. Won't a multiple inclusion prevention guard at the top of header file as I have, prevent multiple inclusions of the header file x.h and thereby avoid multiple definitions of the variables that are there

Repeated Multiple Definition Errors from including same header in multiple cpps

拜拜、爱过 提交于 2019-11-26 18:59:09
So, no matter what I seem to do, I cannot seem to avoid having Dev C++ spew out numerous Multiple Definition errors as a result of me including the same header file in multiple source code files in the same project. I'd strongly prefer to avoid having to dump all my source code into one file and only include the header once, as that's going to make my file very long and difficult to manage. Essentially, this is what's going on: #ifndef _myheader_h #define _myheader_h typedef struct MYSTRUCT{ int blah; int blah2; } MYSTRUCT; MYSTRUCT Job_Grunt; MYSTRUCT *Grunt = &Job_Grunt; MYSTRUCT Job_Uruk;

Repeated Multiple Definition Errors from including same header in multiple cpps

放肆的年华 提交于 2019-11-26 06:43:52
问题 So, no matter what I seem to do, I cannot seem to avoid having Dev C++ spew out numerous Multiple Definition errors as a result of me including the same header file in multiple source code files in the same project. I\'d strongly prefer to avoid having to dump all my source code into one file and only include the header once, as that\'s going to make my file very long and difficult to manage. Essentially, this is what\'s going on: #ifndef _myheader_h #define _myheader_h typedef struct

Why aren't my compile guards preventing multiple definition inclusions?

蹲街弑〆低调 提交于 2019-11-26 05:21:28
问题 I have a header file x.h which is included by more than one *.c source files. This header file has some structure variables defined. I have put multiple inclusion prevention guard at the beginning of the header file as: #ifndef X_H #define X_H ... .. //header file declarations and definitons. #endif//X_H On building I get linker errors related to multiple definitions. I understand the problem. Won\'t a multiple inclusion prevention guard at the top of header file as I have, prevent multiple