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c++ Programming Glossary: foo.hClean up your #include statements? http://stackoverflow.com/questions/1014632/clean-up-your-include-statements type declaration like merely class Foo instead of #include foo.h in the header file is sufficient . What you need then is the.. standard.h as the 'precompiled header file' . contents of foo.h #ifndef INC_FOO_H or #pragma once #define INC_FOO_H #include.. Impl m_impl #endif INC_FOO_H contents of foo.cpp #include foo.h #include bar.h Foo Foo m_impl new Impl struct Foo Impl Bar m_bar..
Do getters and setters impact performance in C++/D/Java? http://stackoverflow.com/questions/1109995/do-getters-and-setters-impact-performance-in-c-d-java . However there is one case where it probably won't be foo.h class Foo private int bar_ public int bar getter foo.cpp #include.. private int bar_ public int bar getter foo.cpp #include foo.h int Foo bar return bar_ If the definition of the function is.. is not visible to users of the class which will include foo.h but won't see foo.cpp then the compiler may not be able to inline..
Tools to find included headers which are unused? [closed] http://stackoverflow.com/questions/1301850/tools-to-find-included-headers-which-are-unused be forward declared. Consider the following A.h class A foo.h #include A.h void foo A const bar.cc #include foo.h void bar.. A foo.h #include A.h void foo A const bar.cc #include foo.h void bar A const a foo a In the above example the definition.. definition of 'A' is not required and so the header file 'foo.h' can be changed so that it has a forward declaration only for..
Initializing private static members http://stackoverflow.com/questions/185844/initializing-private-static-members the header file Or in the source file if not shared . File foo.h class foo private static int i But the initialization should..
Can a C++ class determine whether it's on the stack or heap? http://stackoverflow.com/questions/2054710/can-a-c-class-determine-whether-its-on-the-stack-or-heap
are C functions declared in <c____> headers guaranteed to be in the global namespace as well as std? http://stackoverflow.com/questions/2587445/are-c-functions-declared-in-c-headers-guaranteed-to-be-in-the-global-names cfoo would declare everything within namespace std and foo.h would include cfoo and then drag everything into the global.. may or may not declare things within the global namespace. foo.h is the opposite it is guaranteed to declare everything within.. of the cfoo headers myself and found that I've always use foo.h . Now I feel like I can stop being anxious about my lack of..
Avoiding Circular Dependencies of header files [duplicate] http://stackoverflow.com/questions/4816698/avoiding-circular-dependencies-of-header-files dependency then you doing something wrong. As for example foo.h class foo public bar b bar.h class bar public foo f Is illegal.. bar.h class bar public foo f Is illegal you probably want foo.h class bar forward declaration class foo ... bar b ... bar.h..
Is it a good idea to wrap an #include in a namespace block? http://stackoverflow.com/questions/6670738/is-it-a-good-idea-to-wrap-an-include-in-a-namespace-block reasons. I thought about doing this namespace foo #include foo.h Is doing this a good idea Do I have alternatives that don't..
Why do we need extern “C”{ #include <foo.h> } in C++? http://stackoverflow.com/questions/67894/why-do-we-need-extern-c-include-foo-h-in-c do we need extern &ldquo C&rdquo #include foo.h in C Specifically When should we use it What is happening at..
“No newline at end of file” compiler warning http://stackoverflow.com/questions/72271/no-newline-at-end-of-file-compiler-warning end to the parser it will be viewed as if the last line of foo.h is on the same line as the first line of foo.cpp. What if the.. as the first line of foo.cpp. What if the last line of foo.h was a comment without a new line Now the first line of foo.cpp..
Can I make vim do syntax highlighting on C++ headers that don't have extensions? http://stackoverflow.com/questions/10584580/can-i-make-vim-do-syntax-highlighting-on-c-headers-that-dont-have-extensions called Foo would be declared in a file called Foo not Foo.h or Foo.hh . Is there a good way to configure vim to do syntax.. Foo would be declared in a file called Foo not Foo.h or Foo.hh . Is there a good way to configure vim to do syntax highlighting..
Constructors with default parameters in Header files http://stackoverflow.com/questions/1440222/constructors-with-default-parameters-in-header-files in Header files I have a cpp file like this #include Foo.h Foo Foo int a int b 0 this x a this y b How do I refer to this.. int a int b 0 this x a this y b How do I refer to this in Foo.h c constructor header share improve this question .h class..
Calling C++ function from C#, with lots of complicated input and output parameters http://stackoverflow.com/questions/15672351/calling-c-function-from-c-with-lots-of-complicated-input-and-output-paramete is to create a wrapper for a native class done like this Foo.h #include string namespace nativeFoo class Foo private std string.. std string Bar std string b return fooHeader b ManagedFoo.h #include foo.h namespace managedFoo public ref class Foo private..
Why does everybody use unanchored namespace declarations (i.e. std:: not ::std::)? http://stackoverflow.com/questions/1661912/why-does-everybody-use-unanchored-namespace-declarations-i-e-std-not-std the root one. Here is an example of what I mean In fred Foo.h #include string namespace fred class Foo public void aPublicMember.. oops.cpp #include string #include fred Bar.h #include fred Foo.h Oops the meaning of Foo is now different. Is that what people..
Header file best practices for typedefs http://stackoverflow.com/questions/2356548/header-file-best-practices-for-typedefs seem to have several options of where to define FooListPtr Foo.h. That entwines all the headers and creates serious build problems..
Where to define C++ class member template function and functors that instantiate it? http://stackoverflow.com/questions/4315969/where-to-define-c-class-member-template-function-and-functors-that-instantiate a small standalone project. It has a class definition in Foo.h with the implementation for the class' member functions in an.. should appear with the declaration of the function in Foo.h The template parameter which Foo doSomething will be instantiated.. and implementation of the two Functor classes in Foo.h. C should I put split the definition and implementation of the..
Writing function definition in header files in C++ http://stackoverflow.com/questions/453372/writing-function-definition-in-header-files-in-c Foo method const return A I have created a header file Foo.h and source file Foo.cpp . But since the function is very small..
Why can templates only be implemented in the header file? http://stackoverflow.com/questions/495021/why-can-templates-only-be-implemented-in-the-header-file include this implementation file at the end of the header. Foo.h template typename T struct Foo void doSomething T param #include.. instantiate all the template instances you'll need Foo.h no implementation template typename T struct Foo ... Foo.cpp..
Any metaprogramming way to generate overloads for various numbers of template parameters? http://stackoverflow.com/questions/5475046/any-metaprogramming-way-to-generate-overloads-for-various-numbers-of-template-pa Now we just include it for the number of arguments we want Foo.h #include boost preprocessor.hpp #define FOO_NUM_ARGS 0 #include..
Is there a standard #include convention for C++? http://stackoverflow.com/questions/691079/is-there-a-standard-include-convention-for-c
http://stackoverflow.com/questions/809948/dll-references-in-visual-c .aspx for more info Cheers EDIT Remember to use #include Foo.h as opposed to #include foo.h . The former searches the include..
http://stackoverflow.com/questions/9032475/const-and-global scope and it is default static. solution to this is Foo.h extern const int Foo Foo.cpp #include Foo.h const int Foo 99.. to this is Foo.h extern const int Foo Foo.cpp #include Foo.h const int Foo 99 Main.cpp #include Foo.h int main cout Foo.. Foo.cpp #include Foo.h const int Foo 99 Main.cpp #include Foo.h int main cout Foo endl I used to think that extern is used..
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