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Suggest pagesDifference between revisions of "Cpp Coding Standards/HEADERS/IncGuards"
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==== Internal Include Guards (IncGuards) ==== | ==== Internal Include Guards (IncGuards) ==== | ||
| − | Internal include guards are good but '''don't''' use the external ones. They add a lot of noise for a non-existent benefit. Also, they add | + | Internal include guards are good but '''don't''' use the external ones. They add a lot of noise for a non-existent benefit. Also, they add unwanted, and not always noted, dependencies, if for any reason the guarding define changes. |
// Foo.hxx | // Foo.hxx | ||
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#include "Foo.hxx" | #include "Foo.hxx" | ||
#include "Baz.hxx" | #include "Baz.hxx" | ||
| + | [[Category:Coding Standards]] | ||
Latest revision as of 17:12, 14 December 2009
Internal Include Guards (IncGuards)
Internal include guards are good but don't use the external ones. They add a lot of noise for a non-existent benefit. Also, they add unwanted, and not always noted, dependencies, if for any reason the guarding define changes.
// Foo.hxx // Yes, use internal include guards #ifndef INCLUDED_FOO_HXX #define INCLUDED_FOO_HXX // No include guards here #include "Superclass.hxx" ... #endif
// Bar.cxx // No include guards here #include "Bar.hxx" #include "Foo.hxx" #include "Baz.hxx"
