Die folgende Tabelle zeigt Ausführungspriorität und Assoziativität der C++-Operatoren. Die Operatoren sind von oben nach unten von vorrangiger zu nachrangiger Priorität hin geordnet. Priorität Operator Beschreibung Assoziativität 1 :: Bereichsauflösung von links nach rechts ...
Types(fundamental types) Themainfunction Modules(C++20) Contracts(C++26) Expressions Value categories Evaluation order Operators(precedence) Conversions−Literals Constant expressions Statements if−switch for−range-for(C++11) while−do-while ...
operator precedence(运算符优先级) P pointer(指针) preprocessor(预处理器) prvalue(纯右值)(C++11 起) R rvalue(右值)(C++11 前) S scope(作用域) class(类作用域) block(块作用域) enumeration(枚举作用域) function prototype(函数原型作用域) ...
See operator precedence for the details on the relative precedence of this operator and assignment. Conditional operator has right-to-left associativity, which allows chaining Run this code #include <assert.h> enum vehicle { bus, airplane, train, car, horse, feet }; enum vehicle choose(char...
↑ new-value cannot be a comma expression, because its precedence is lower. 1) Simple assignment expression. 2) Compound assignment expression. If new-value is not an expression, the assignment expression will never match an overloaded compound assignment operator. (since C++11) Built-in simple...
Operator Precedence Escape Sequences ASCII Chart Data Types Keywords Standard C Library Standard C I/O Standard C String & Character Standard C Math Standard C Time & Date Standard C Memory Other standard C functions All C Functions C++ C++ I/O C++ Strings Miscellaneous C++...
↑ sizeof 的运算数不能是转换:表达式 sizeof (int) * p 无歧义地转译成 (sizeof(int)) * p ,而非 sizeof((int)*p)。 ↑ 条件运算符中部(? 与: 之间)的表达式分析为如同加括号:忽略其相对于 ?: 的优先级。 ↑ 赋值运算符的左运算数必须是一元(第 2 级非转换)表达式。此规则在文法上禁止某些表...
C++标准现在状态 C语言格式化IO修饰符 C++中的数值类型 C++字符相关判断函数 STL容器列表 变量的storage duration and linkage lvalue xvalue prvalue Scope Order of evaluation Overload resolution Conversion Operator precedence Operator overloading cppsamples ...
[[C++ Reference]] C++ Reference General C++ Pre-processor commands Operator Precedence Escape Sequences ASCII Chart Data Types Keywords Standard C Library Overview Standard C I/O Standard C String & Character Standard C Math Standard C Time & Date ...
[[C++ Reference]] C++ Reference General C++ Pre-processor commands Operator Precedence Escape Sequences ASCII Chart Data Types Keywords Standard C Library Overview Standard C I/O Standard C String & Character Standard C Math Standard C Time & Date ...