The return statement is used to terminate the execution of a function and transfer program control back to the calling function. In addition, it can specify a value to be returned by the function. A function may contain one or more return statements. The
复制 struct s{double i;}f(void);// function returning struct sunion{struct{int f1;struct s f2;}u1;struct{struct s f3;int f4;}u2;}g;struct sf(void){returng.u1.f2;}intmain(void){// g.u2.f3 = g.u1.f2; // undefined behavior (overlap in assignment)g.u2.f3=f();// well-defi...
statement returnstatement From cppreference.com <cpp |language Statements Terminates the current function and returns the specified value (if any) to the caller. Syntax attr-(since C++11)sequence of any number ofattributes expression-expression, convertible to the function return type...
Return Statement Cleanup Functions Best Practices and Consideration Pitfalls and Common Mistakes Syntax void exit (int status); Since exit() has no return type, use void here as the return type in C programming language. The variable status represents its status value, which is returned to the ...
Status Getstack(SqStack &S, SElemType e){ // 改&e 为：e, 这就允许你用常数调用。main(){ SqStack S; // 改&S 为 S if(S.top==S.base) exit(0); // 改掉 返回 return ERROR; 例如用 exit(0); 因为 void 函数体内 不能用 return 语句。50 c语言...
It is declared in "stdlib.h" header file in C language. It does not return anything. The following is the syntax of exit() void exit(int status_value); Here, status_value ? The value which is returned to parent process. The following is an example of exit(). Example Open Compiler ...
C Language Reference Statements (C) 使用英语阅读 保存 通过 Facebookx.com 共享LinkedIn电子邮件 The C return Statement 项目 2007/12/31 本文内容 Syntax See Also The return statement terminates the execution of a function and returns control to the calling function. Execution resumes in the calling ...
如果未提供任何 return 運算式,Microsoft C 執行階段會傳回值,指出成功 (0) 或失敗 (非零值)。 範例 此範例是數個部分中的一個程式。 它會示範 return 陳述式,以及如何同時用來結束函式執行,以及選擇性地傳回值。 C 複製 // C_return_statement.c // Compile using: cl /W4 C_return_statement.c #...
a return value in programming refers to the data or information that a function provides back to the part of the code that called it. when a function completes its task or computation, it can use a return statement to send a specific value, such as a number, string, boolean, or even ...
int print_data(int* data, int len) { for (int i = 0; i < len; i++) { printf("%d ", data[i]); } printf("\n"); // here the return statement is missing, the compiler will generate an UB //hello(); } print_data() 按如下写法, 调用者打印出的返回值是 res=233,是 hell...