// constant_member_function.cppclassDate{public: Date(intmn,intdy,intyr );intgetMonth()const;// A read-only functionvoidsetMonth(intmn );// A write function; can't be constprivate:intmonth; };intDate::getMonth()const{returnmonth;// Doesn't modify anything}voidDate::setMonth(intmn )...
提案P0595 希望加入一个新的 magic function 也就是 constexpr() 用来判断当前的函数是否在编译期执行,后来被更名为is_constant_evaluated并且进入 C++20。使用起来就像下面这样 constexpr int foo(int x) { if(std::is_constant_evaluated()) { return x; } else { return x + 1; } } 这样的话编译...
在C语言中,`const`关键字用于定义一个常量。常量是一个在程序运行期间不能更改的值。它们可以用来表示固定的数值、字符或其他不可更改的值。在C语言中,可以使用`const`关键字来定义整数、字符、字...
lockSet);/// We processes the current function, it is no longer on the stacksFunc->onStack=false;/// Add the exit lockset to the summary cachesFunc->functionCache.functionCacheEntries.push_back(*functionCacheEntry);returnfunctionCacheEntry->exitLockSets; ...
Re: const after function name On 18 Aug 2005 01:29:33 -0700, "Robert" <zhushenli@gmai l.com> wrote: [color=blue] >Hi all, > >class Homer { >public: > int dot(int) const {return 1;} > ... >} > >what's the meaning of const after function name? > >Best regards, >Rober...
you can use the readonly keyword in C# (which maps to initonly in MSIL) to indicate that the value of the variable can only be set in the constructor; after that, it's an error to change it. This is often used when a field helps to determine the identity of a class, and is oft...
DebugProc function (Windows) XMVectorSetByIndex method (Windows) operator /=(XMVECTOR&, XMVECTOR) method (Windows) CD3D11_RECT::operator const D3D11_RECT&() method (Windows) IDCompositionMatrixTransform3D::SetMatrixElement methods (Windows) IMediaRenderer::GetTransportInformationAsync method (Win...
Which mean foo function is no longer a constexpr function right? But why is it not a constexpr function? My understanding is main() provided a constant expression goo(a), it goes to a constexpr/consteval function goo(int c), then goo() provides foo() with a{5}. Is this process th...
Outputmain.c: In function ‘main’: main.c:11:7: error: assignment of read-only variable ‘a’ a = 20; ^ See the output – a is an integer constant here, and when we try to change it, the error is there.C Language Tutorial »...
Function declaration 3. After producing the list of parameter types, any top-levelcv-qualifiers...