Without the ellipsis notation, the behavior of a function is undefined if it receives parameters in addition to those declared in the parameter list.To call a function with a variable number of arguments, simply specify any number of arguments in the function call. An example is the printf ...
9 ps=(struct stu*)malloc(sizeof(struct stu)); 10 ps->num = 102; 11 ps->name = "Zhang ping"; 12 ps->sex = 'M'; 13 ps->score = 62.5; 14 #ifdef NUM 15 printf("Number=%d\nScore=%f\n", ps->num, ps->score); /*--Execute--*/ 16 #else 17 printf("Name=%s\nSex=%c...
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num);/*访问所有赋给 valist 的参数*/for(i=0;i<num;i++){sum+=va_arg(valist,int);}/*清理为 valist 保留的内存*/va_end(valist);returnsum/num;}intmain(){printf("Average of 2, 3, 4, 5 = %f\n",average(4,2,3
cstdio,在C语言中称为stdio.h。该库使用所谓的流与物理设备(如键盘、打印机、终端)或系统支持的任何其他类型的文件一起操作。 在本文将会通过介绍函数参数,举出实际的简单例子来帮助大家快速上手使用函数。 一、流 在C语言的标准库stdio.h中,流(stream)是一个抽象的概念,用于表示输入和输出流。在C语言中,流是...
text global main main: push rbp mov rbp,rsp mov r12, rdi ;rdi contains number of arguments mov r13, rsi ;rsi contains the address to the array of arguments printArguments: mov rdi, msg call printString mov rbx, 0 printLoop: mov rdi, qword [r13+rbx*8] call printString mov rdi, NL...
functions called with variable number of arguments 4.6 lint Reference and ExamplesThis section provides reference information on lint, including checks performed by lint, lint libraries, and lint filters. 4.6.1 Diagnostics Performed by lintlint
// argc argv envp//#include<stdio.h>intmain(intargc,// Number of strings in array argvchar*argv[],// Array of command-line argument stringschar**envp )// Array of environment variable strings{intcount;// Display each command-line argument.printf_s("\nCommand-line arguments:\n");for(...
with a variable number of arguments. And C99 does the same thing for macros. Although not used in the standard, the word variadic has come into currency to label this facility. (However, the process that has added stringizing and variadic to the C vocabulary has not ...
Both C and C++ compilers support a function declarator that specifies a variable number of arguments, followed by a function definition that provides a type instead: C++ voidmyfunc(intx, ... );voidmyfunc(intx,char* c ){ }// In C with /W4, either by default or under /Ze:// warning...