sizeof operator in C Sizeof 是C 或 C++中常用的运算符。它是一个编译时一元运算符,可用于计算其操作数的大小。 sizeof 的结果是无符号整数类型,通常用 size_t 表示。 sizeof 可以应用于任何数据类型,包括原始类型(如整数和浮点类型)、指针类型或复合数据类型(如结构、联合等)。使用 sizeof() 运算符根据操...
1)Yields the size in bytes of theobject representationoftype. 2)Yields the size in bytes of the object representation of the type ofexpression, if that expression is evaluated. type-atype-id(seetype naming) expression-an expression whoseoperator precedenceis not lower thansizeof(e.g.sizeof ...
1. 定义: sizeof是C/C++中的一个操作符(operator)是也,简单的说其作用就是返回一个对象或者类型所占的内存字节数。 MSDN上的解释为: The sizeof keyword gives the amount of storage, in bytes, associated with a variable or a type (including aggregate types). This keyword returns a value of type...
If an unsized array is the last element of a structure, thesizeofoperator returns the size of the structure without the array. Thesizeofoperator is often used to calculate the number of elements in an array using an expression of the form: sizeof array / sizeof array[0] 大致翻译如下(错...
C++ sizeof() operator: Here, we are going to learn about the sizeof() operator operands in C++ programming language.
// sizeof operator #include"bits/stdc++.h" usingnamespacestd; // Driver Code intmain() { // Print the sizeof integer cout<<"Size of (int) = " <<sizeof(int)<<" bytes "; // Print the size of (int*) cout<<"Size of (int *) = " ...
sizeof是一个C语言的运算符,用于计算数据类型或变量所占用的字节数。它可以用来确定数据类型的大小,以便在内存分配、数组定义和指针运算等场景中使用。 sizeof运算符可以用于任何数据类型,包括基本数据类型(如int、float、char等)和自定义数据类型(如结构体、联合体等)。它返回一个无符号整数值,表示数据类型或变量所...
Example of sizeof OperatorTry the following example to understand all the sizeof operator available in C++. Copy and paste following C++ program in test.cpp file and compile and run this program.Open Compiler #include <iostream> using namespace std; int main() { cout << "Size of char :...
sizeof是C/C++中的一个操作符(operator)是也,简单的说其作用就是返回一个对象或者类型所占的内存字节数。 MSDN上的解释为: The sizeof keyword gives the amount of storage, in bytes, associated with a variable or a type (including aggregate types). This keyword returns a value of type size_t. ...
Thesizeofoperator gives the amount of storage, in bytes, required to store an object of the type of the operand. This operator allows you to avoid specifying machine-dependent data sizes in your programs. Syntax sizeof unary-expression sizeof ( type-name ) ...