main.c #include<stdio.h>#include<stdarg.h>#defineuint8_t unsigned char#defineuint16_t unsigned short#defineuint32_t unsigned intuint8_tadd(uint8_targ_num, ... ){uint8_t_result=0;uint32_tm=-0x7FFFFFFF;//32位系统最小整数uint16_t_m=-0x7FFF;//16位系统最小整数uint8_t__m=-0x7F...
#defineSQUARE(x)((x)*(x))intSquare(int x){return(x*x);//未考虑溢出保护}intmain(void){int i=1;while(i<=5)printf("i = %d, Square = %d\n",i,Square(i++));int j=1;while(j<=5)printf("j = %d, SQUARE = %d\n",j,SQUARE(j++));return0;} 执行后输出如下: 代码语言:javas...
To get such a functionality, you need to use the stdarg.h header file which provides the functions and macros to implement the functionality of variable arguments.Follow the steps given below −Define a function with its last parameter as ellipses and the one just before the ellipses is ...
void va_start(va_list ap, parmN);Parameters or Argumentsap A variable argument list. parmN The name of the last ordinary parameter.ReturnsThe va_start function does not return anything.Required HeaderIn the C Language, the required header for the va_start function is:#include <stdarg.h>...
1#defineM (y*y+3*y) 编码时所有的表达式(y*y+3*y)都可由M代替,而编译时先由预处理程序进行宏替换,即用(y*y+3*y)表达式去置换所有的宏名M,然后再进行编译。 注意,在宏定义中表达式(y*y+3*y)两边的括号不能少,否则可能会发生错误。如s=3*M+4*M在预处理时经宏展开变为s=3*(y*y+3*y)+...
A function is a block of code that performs a specific task. C allows you to define functions according to your need. These functions are known as user-defined functions. For example: Suppose, you need to create a circle and color it depending upon the radius and color. You can create ...
// we assume all arguments are integers and we sum them up // for simplicity we do not verify the type of arguments int main(int argc, char *argv[]) { std::vector<int> integers; for (auto i = 1; i < argc; i++) {
This program willdemonstrate example of Variable Arguments, in this program we will create a user define function for calculating sum of N arguments, using Variable Arguments we can pass multiple arguments in the function. Example of Variable Arguments using C program ...
To map a C function argument to an InputOutput scope, define the variable as a pointer in your function. extern void mean_filter(unsigned char* src, unsigned int width, unsigned int height, unsigned int filterSize); Then set the scope to InputOutput in the Port Specification table and as...
-m, --main=NAME Assume main function to be called NAME -p, --pushdown=NUMBER Set initial token stack size to NUMBER --preprocess[=COMMAND], --cpp[=COMMAND] * Run the specified preprocessor command -s, --symbol=SYMBOL:[=]TYPE Register SYMBOL with given TYPE, or define an alias (if ...