比如,你可以让两个函数是同名的,只要它们的参数列表不同即可,这就是函数重载(function overloading);甚至,你可以让两个函数的原型声明是完全相同的,只要它们所处的名字空间(namespace)不一样即可。事实上,当处于不同的名字空间时,所有的名字都是可以重复的,无论是函数名,变量名,还是类型名。 另外,C++程序的...
之所以在C++的世界里存在这样一个怪物,是因为C++允许对一个名字给予不同的定义,只要在语义上没有二义性就好。比如,你可以让两个函数是同名的,只要它们的参数列表不同即可,这就是函数重载(function overloading);甚至,你可以让两个函数的原型声明是完全相同的,只要它们所处的名字空间(namespace)不一样即可。事实上...
error LNK2019: unresolved external symbol "public: void __thiscall Object::foo(char *)" (<?foo@Object@@QAEXPAD@Z>) referenced in function _main error LNK2019: unresolved external symbol "public: void __thiscall Object::foo(int)" (<?foo@Object@@QAEXH@Z>) referenced in function _main ...
了解隐式接口和编译期多态(class 和 templates 都支持接口(interfaces)和多态(polymorphism);class 的接口是以签名为中心的显式的(explicit),多态则是通过 virtual 函数发生于运行期;template 的接口是奠基于有效表达式的隐式的(implicit),多态则是通过 template 具现化和函数重载解析(function overloading resolution)发...
For C++, dbx handles the implicit this pointer, default arguments, and function overloading. The C++ overloaded functions are resolved automatically if possible. If any ambiguity remains (for example, functions not compiled with -g), dbx displays a list of the overloaded names. ...
了解隐式接口和编译期多态(class 和 templates 都支持接口(interfaces)和多态(polymorphism);class 的接口是以签名为中心的显式的(explicit),多态则是通过 virtual 函数发生于运行期;template 的接口是奠基于有效表达式的隐式的(implicit),多态则是通过 template 具现化和函数重载解析(function overloading resolution)发...
In previous versions, <math.h> defined some, but not all, of the C++ overloads for the math library functions. The rest of the overloads were in the <cmath> header. Code that only included <math.h> could have problems with function overload resolution. Now the C++ overloads have ...
If you do not qualify it, dbx displays an overload list so you can choose which function you will navigate. If you know the function class name, you can use it with the double colon scope resolution operator to qualify the name. (dbx) func class::function_name (args) ...
編譯器警告 (層級 1) C4454'function' 是由多於輸入參數數目所多載,卻未指定 [DefaultOverload]。 將挑選 'declaration' 做為預設多載 編譯器警告 (層級 1) C4455運算子 'operator':開頭不是底線的常值後置字元識別項已予保留 編譯器警告 (層級 4) C4456'identifier' 的宣告會隱藏先前的區域...
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