¡@
c++ Programming Glossary: extraIs there a difference in C++ between copy initialization and direct initialization? http://stackoverflow.com/questions/1051379/is-there-a-difference-in-c-between-copy-initialization-and-direct-initializati grouping are these statements identical Or is there an extra possibly optimizable copy in some of the initializations I have..
what is the difference between const int*, const int * const, int const * http://stackoverflow.com/questions/1143262/what-is-the-difference-between-const-int-const-int-const-int-const that can be changed. This is like a reference with out the extra syntactic sugar. Because of this fact usually you would use..
What are copy elision and return value optimization? http://stackoverflow.com/questions/12953127/what-are-copy-elision-and-return-value-optimization an optimization implemented by most compilers to prevent extra potentially expensive copies in certain situations. It makes..
Most vexing parse: why doesn't A a(()); work? http://stackoverflow.com/questions/1424510/most-vexing-parse-why-doesnt-a-a-work case the usual workaround for this issue is to add an extra set of brackets parenthesis around the B as the compiler will.. it to A a but I'm curious to know what it is that the extra does for the compiler in the first example which then doesn't..
How come a non-const reference cannot bind to a temporary object? http://stackoverflow.com/questions/1565600/how-come-a-non-const-reference-cannot-bind-to-a-temporary-object on your question and comments I don't think even these extra answers will satisfy you. Here is a final attempt summary The..
Static linking vs dynamic linking http://stackoverflow.com/questions/1993390/static-linking-vs-dynamic-linking kind of glue layer which often means double dispatch or an extra layer of indirection in function addressing and can cost a little..
Read whole ASCII file into C++ std::string http://stackoverflow.com/questions/2602013/read-whole-ascii-file-into-c-stdstring you've confused it with C's fopen . Edit Also note the extra parentheses around the first argument to the string constructor...
Why does C++ compilation take so long? http://stackoverflow.com/questions/318398/why-does-c-compilation-take-so-long complex types with ridiculously long names adding a lot of extra work to the linker. It has to compare a lot of symbol names..
Windows threading: _beginthread vs _beginthreadex vs CreateThread C++ http://stackoverflow.com/questions/331536/windows-threading-beginthread-vs-beginthreadex-vs-createthread-c thread I already know that CreateThread provides a little extra information when an error occurs it can be checked by calling..
Can we increase the re-usability of this key-oriented access-protection pattern? http://stackoverflow.com/questions/3324898/can-we-increase-the-re-usability-of-this-key-oriented-access-protection-pattern in the template parameters of the passkey parameter no extra definitions required this eliminates both drawbacks. The caller..
RAII and smart pointers in C++ http://stackoverflow.com/questions/395123/raii-and-smart-pointers-in-c is that the caller has to manage memory which adds extra complexity and might get it wrong leading to a memory leak i.e...
What are Aggregates and PODs and how/why are they special? http://stackoverflow.com/questions/4178175/what-are-aggregates-and-pods-and-how-why-are-they-special is present it means that the user needs to do some extra work to initialize the members therefore brace initialization..
http://stackoverflow.com/questions/4421706/operator-overloading in terms of prefix. Also note that postfix does an extra copy. 2 2 Also note that the postfix variant does more work..
What are the differences between pointer variable and reference variable in C++? http://stackoverflow.com/questions/57483/what-are-the-differences-between-pointer-variable-and-reference-variable-in-c p2 You can have pointers to pointers to pointers offering extra levels of indirection. Whereas references only offer one level..
http://stackoverflow.com/questions/5854581/polymorphism-in-c point promotion Standard §4 to convert 42 to 42.0 . That extra code is in the calling function. We'll discuss the significance..
Is short-circuiting boolean operators mandated in C/C++? And evaluation order? http://stackoverflow.com/questions/628526/is-short-circuiting-boolean-operators-mandated-in-c-c-and-evaluation-order evaluation of the first expression 12 . In C there is an extra trap short circuiting does NOT apply to types that overload..
Which is the best c++ web framework? [closed] http://stackoverflow.com/questions/746309/which-is-the-best-c-web-framework web servers because they have dependencies and require an extra apache module or a custom httpd. Good luck with your project...
What is “rvalue reference for *this”? http://stackoverflow.com/questions/8610571/what-is-rvalue-reference-for-this set a member function is considered to have an extra parameter called the implicit object parameter which represents..
Why does changing 0.1f to 0 slow down performance by 10x? http://stackoverflow.com/questions/9314534/why-does-changing-0-1f-to-0-slow-down-performance-by-10x or subnormal numbers are kind of a hack to get some extra values very close to zero out of the floating point representation...
std::string to float or double http://stackoverflow.com/questions/1012571/stdstring-to-float-or-double ... QString winOpacity 0.6 double temp winOpacity.toDouble Extra note If the input data is a const char QByteArray toDouble will..
Why Switch/Case and not If/Else If? http://stackoverflow.com/questions/1028437/why-switch-case-and-not-if-else-if when not propriate and can't be initialized inside it . Extra attention has to be put on not dropping break's and so on.....
static variable initialisation code never gets called http://stackoverflow.com/questions/1897184/static-variable-initialisation-code-never-gets-called compile time nothing is pulled from the dynamic library. Extra code is added to explicitly load and resolve the symbols at..
http://stackoverflow.com/questions/194634/string-c-str-vs-data when the elements of your string are character based. Extra In C 11 onwards both functions are required to be the same...
Extra leading zeros when printing float using printf? http://stackoverflow.com/questions/2486410/extra-leading-zeros-when-printing-float-using-printf leading zeros when printing float using printf I'd like to..
Need some feedback on how to make a class “thread-safe” http://stackoverflow.com/questions/3482352/need-some-feedback-on-how-to-make-a-class-thread-safe for the mutex variable to lock it also from the outside Extra scope added to limit the lifetime of the scoped_lock. deadlock.. action value private boost mutex m_mutex TValue m_value Extra paranthesis necessary otherwise c interprets it as a function.. m_value m_mutex private boost mutex m_mutex TValue m_value Extra paranthesis necessary otherwise c interprets it as a function..
C++, Access Violation using OpenCV to get RGB value of pixel http://stackoverflow.com/questions/3851604/c-access-violation-using-opencv-to-get-rgb-value-of-pixel error. What is causing this error and how can I fix it Extra info Windows 7 MSVC 2010 Express OpenCV 2.1 UPDATE I've realised..
What is a non-trivial constructor in C++? http://stackoverflow.com/questions/3899223/what-is-a-non-trivial-constructor-in-c copied by a simple raw memory copy routine like memcpy . Extra manipulations will be necessary to properly re initialize the..
Array of Function Pointers Without a typedef http://stackoverflow.com/questions/5093090/array-of-function-pointers-without-a-typedef But naturally this is a bad practice just use typedefs Extra Wonder how to declare an array of 3 pointers to functions taking..
How to force a static member to be initialized? http://stackoverflow.com/questions/6420985/how-to-force-a-static-member-to-be-initialized of Foo needing to explicitly state the member in some way Extra cookies for not needing the derived class to do anything. Edit..
Move semantics & returning const values http://stackoverflow.com/questions/7138780/move-semantics-returning-const-values mix in this particular use case. Is that right Edit 0 Extra question... The object is temporary anyway. Why should const..
How to implement “Variadic Template” with pre-c++0x(VS2008)? http://stackoverflow.com/questions/7683041/how-to-implement-variadic-template-with-pre-c0xvs2008 curr_offset 2 if prev_offset s.length break ASSERT Extra Argument Provided return false c boost variadic functions variadic.. curr_offset 2 if prev_offset s.length break assert 0 Extra Argument Provided return false And the demo int main VarPrint..
Extra bytes when declaring a member of a struct as uint32_t http://stackoverflow.com/questions/7970383/extra-bytes-when-declaring-a-member-of-a-struct-as-uint32-t bytes when declaring a member of a struct as uint32_t I have..
C++03. Test for rvalue-vs-lvalue at compile-time, not just at runtime http://stackoverflow.com/questions/9084671/c03-test-for-rvalue-vs-lvalue-at-compile-time-not-just-at-runtime in C 03 it's valid C 11 and fails some other compilers. Extra parameter restored which makes it work in more cases. const..
|