¡@
c++ Programming Glossary: funchttp://stackoverflow.com/questions/114180/pointer-vs-reference vs. Reference What would be better practice when giving a function the original variable to work with unsigned long x 4 void.. the original variable to work with unsigned long x 4 void func1 unsigned long val val 5 func x or void func2 unsigned long.. with unsigned long x 4 void func1 unsigned long val val 5 func x or void func2 unsigned long val val 5 func2 x IOW Is there..
Use of 'const' for function parameters http://stackoverflow.com/questions/117293/use-of-const-for-function-parameters of 'const' for function parameters How far do you go with const Do you just make.. parameters How far do you go with const Do you just make functions const when necessary or do you go the whole hog and use.. to learn that you can omit const from parameters in a function declaration but can include it in the function definition..
Regular cast vs. static_cast vs. dynamic_cast http://stackoverflow.com/questions/28002/regular-cast-vs-static-cast-vs-dynamic-cast type and thus a check would be unnecessary. Example void func void data conversion from MyClass void is implicit MyClass c.. MyClass data ... int main MyClass c start_thread func c func c will be called .join In this example you know that.. MyClass data ... int main MyClass c start_thread func c func c will be called .join In this example you know that you passed..
Are there benefits of passing by pointer over passing by reference in C++? http://stackoverflow.com/questions/334856/are-there-benefits-of-passing-by-pointer-over-passing-by-reference-in-c by reference. Are there benefits to doing this Example func SPRITE x with a call of func mySprite vs. func SPRITE x with.. to doing this Example func SPRITE x with a call of func mySprite vs. func SPRITE x with a call of func mySprite c pointers.. Example func SPRITE x with a call of func mySprite vs. func SPRITE x with a call of func mySprite c pointers pass by reference..
Undefined Behavior and Sequence Points http://stackoverflow.com/questions/4176328/undefined-behavior-and-sequence-points §1.9 18 2 a b §5.14 a b §5.15 a b c §5.16 a b 5.18 in func a a is not comma operator its merely a separator between the.. that case if a is considered to be a primitive type at a function call whether or not the function is inline after the evaluation.. be a primitive type at a function call whether or not the function is inline after the evaluation of all function arguments..
http://stackoverflow.com/questions/5450159/type-erasure-techniques and commonly taken approach that I know are virtual functions. Just hide the implementation of your class inside an interface.. the de allocation mechanic. Then there is the option with function pointers to templated functions while holding the actual.. there is the option with function pointers to templated functions while holding the actual object in a void pointer like..
C++: Pointer to class data member http://stackoverflow.com/questions/670734/c-pointer-to-class-data-member use for pointers to member data. Pointer to member functions can be used in pluggable architectures but once again producing.. defeats me. The following is my best untested try an Apply function that would do some pre post processing before applying a.. pre post processing before applying a user selected member function to an object void Apply SomeClass c SomeClass func do hefty..
How do I expand a tuple into variadic template function's arguments? http://stackoverflow.com/questions/687490/how-do-i-expand-a-tuple-into-variadic-template-functions-arguments do I expand a tuple into variadic template function's arguments Consider the case of a templated function with.. function's arguments Consider the case of a templated function with variadic template arguments template typename Tret.. arguments template typename Tret typename... T Tret func const T ... t Now I have a tuple t of values. How do I call..
What is a lambda expression in C++11? http://stackoverflow.com/questions/7627098/what-is-a-lambda-expression-in-c11 this question The problem C includes useful generic functions like std for_each and std transform which can be very handy... can also be quite cumbersome to use particularly if the functor you would like to apply is unique to the particular function... you would like to apply is unique to the particular function. #include algorithm #include vector namespace struct f void..
“unpacking” a tuple to call a matching function pointer http://stackoverflow.com/questions/7858817/unpacking-a-tuple-to-call-a-matching-function-pointer unpacking&rdquo a tuple to call a matching function pointer I'm trying to store in a std tuple a varying number.. which will later be used as arguments for a call to a function pointer which matches the stored types. I've created a simplified.. struct save_it_for_later std tuple Args... params void func Args... void delayed_dispatch How can I unpack params to call..
Access C++ shared library from Java: JNI, JNA, CNI, or SWIG? http://stackoverflow.com/questions/3720563/access-c-shared-library-from-java-jni-jna-cni-or-swig is something like class MyObj1 MyObj1 std string bool bool Func1 void Func2 bool class MyObj2 MyObj2 MyObj1 ssize_t Func uint8_t.. like class MyObj1 MyObj1 std string bool bool Func1 void Func2 bool class MyObj2 MyObj2 MyObj1 ssize_t Func uint8_t size_t.. Func1 void Func2 bool class MyObj2 MyObj2 MyObj1 ssize_t Func uint8_t size_t MyObj1 The actual interface is a bit more complicated..
5 years later, is there something better than the “Fastest Possible C++ Delegates”? http://stackoverflow.com/questions/4298408/5-years-later-is-there-something-better-than-the-fastest-possible-c-delegate function template typename R class T typename A1 R T Func A1 R Wrapper void o A1 a1 return static_cast T o Func a1 class.. R T Func A1 R Wrapper void o A1 a1 return static_cast T o Func a1 class Foo public void DoSomething int void InvokeCallback.. typename R typename A1 class Callback public typedef R FuncType void A1 Callback void o FuncType f obj o func f R operator..
How to get IOStream to perform better? http://stackoverflow.com/questions/5166263/how-to-get-iostream-to-perform-better #include cstdio #include sys time.h template typename Func double benchmark Func f size_t iterations f timeval a b gettimeofday.. sys time.h template typename Func double benchmark Func f size_t iterations f timeval a b gettimeofday a 0 for iterations..
Isn't the template argument (the signature) of std::function part of its type? http://stackoverflow.com/questions/5931214/isnt-the-template-argument-the-signature-of-stdfunction-part-of-its-type looks like in VS2010 template class _Fx function _Fx _Func typename _Not_integral _Is_integral _Fx value int _Type 0 Ignoring.. class Signature class myfunc public template class Func myfunc Func a_func ... Now when the compiler searches for valid.. Signature class myfunc public template class Func myfunc Func a_func ... Now when the compiler searches for valid functions..
Why does C++11 not support declaring extern “C” on a static member function? http://stackoverflow.com/questions/14395192/why-does-c11-not-support-declaring-extern-c-on-a-static-member-function The standard gives an example here extern C typedef void FUNC_c class C the name of the function mf1 and the member function.. the parameter has type pointer to C function void mf1 FUNC_c the name of the function mf2 and the member function ™s type.. mf2 and the member function ™s type have C language linkage FUNC_c mf2 the name of the data member q has C language linkage and..
Foreach macro on macros arguments http://stackoverflow.com/questions/6707148/foreach-macro-on-macros-arguments syntax from BOOST. The interface is just P99_FOR NAME N OP FUNC ... and you can use it with something like #define P00_SEP NAME..
Can templates be used to access struct variables by name? http://stackoverflow.com/questions/672843/can-templates-be-used-to-access-struct-variables-by-name A thing I could do is write f as a macro like this #define FUNC which void f my_struct s int new_value s which new_value and.. s int new_value s which new_value and then I could call FUNC a or FUNC b . This would work but I don't like using macros... s which new_value and then I could call FUNC a or FUNC b . This would work but I don't like using macros. So my question..
C++11 constexpr function's argument passed in template argument http://stackoverflow.com/questions/9045635/c11-constexpr-functions-argument-passed-in-template-argument argument constexpr T func return tfunc T t #define FUNC a func decltype a a int main std cout FUNC 10 std endl Now it.. T t #define FUNC a func decltype a a int main std cout FUNC 10 std endl Now it should work online demo share improve this..
|