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GeneralRe: Where do you place your #includes? Pin
den2k8829-Jan-19 21:12
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mo149229-Jan-19 2:27
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GeneralRe: Where do you place your #includes? Pin
den2k8829-Jan-19 21:10
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GeneralRe: Where do you place your #includes? Pin
Klaus-Werner Konrad24-Apr-19 4:31
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AnswerRe: Where do you place your #includes? Pin
CPallini29-Jan-19 10:49
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GeneralRe: Where do you place your #includes? Pin
den2k8829-Jan-19 21:07
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GeneralRe: Where do you place your #includes? Pin
CPallini29-Jan-19 22:07
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AnswerRe: Where do you place your #includes? Pin
Stefan_Lang29-Jan-19 22:28
mveStefan_Lang29-Jan-19 22:28 
I never put includes into a header file if I can avoid it using forward declarations. Any source code file including that header then can decide for itself whether it needs (and must include) the full declaration.

There's no benefit to put includes into headers other than saving a little typing in your source files that may need some more include statements than usual. (and you could actually reduce or avoid that if you just put commonly used headers in your .PCH file instead)
But there's a high risk in doing so: macros breaking other source files (e. g. the min and max macros #defined when including windows.h breaking STL code); the global name space cluttered with thousands of symbols that may conflict with local names; and compilers silently resolving a function call to something different than you expect because of such conflicts.

There are several benefits to avoiding includes in headers, such as reducing response times of any tool or functionality that requires parsing your code (including your language-sensitve text editor and compiler), and avoiding unnecessary clutter in your global namespace. It's also informative to see what the declarations inside of a header (or source) file really depend on.
GOTOs are a bit like wire coat hangers: they tend to breed in the darkness, such that where there once were few, eventually there are many, and the program's architecture collapses beneath them. (Fran Poretto)

AnswerRe: Where do you place your #includes? Pin
leon de boer30-Jan-19 2:26
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QuestionPf Pin
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QuestionWin API or other? Pin
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AnswerRe: Win API or other? Pin
Victor Nijegorodov26-Jan-19 5:33
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AnswerRe: Win API or other? Pin
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leon de boer28-Jan-19 17:07
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Questionc++ MS Word Pin
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QuestionHow to print all source code what was running? Pin
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Victor Nijegorodov24-Jan-19 20:49
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GeneralRe: How to print all source code what was running? Pin
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GeneralRe: How to print all source code what was running? Pin
HS_C_Student26-Jan-19 4:06
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GeneralRe: How to print all source code what was running? Pin
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