int x = 10, y = 20; // Pass addresses of 'x' and 'y' to the function. updateValues(&x, &y); // Now 'x' and 'y' are updated. printf("x = %d, y = %d\n", x, y); return 0; } 这里,我们通过修改x和y的值来间接“返回”这两个参数。这种方式非常适合返回基本数据类型的多...
std::function<>是C++11标准引入的类模板。 std::function<>专门用来包装可调用的函数对象。在"<>"里面传入返回值类型和传参类型就可以开始使用std::function<>了。 std::function<>用法如下: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 std::function<ReturnType(ParamType1, ... , ParamTypeN)>...
c = p_Max(a, b);//通过函数指针调用Max函数printf("a = %d\nb = %d\nmax = %d\n", a, b, c);return0; }intMax(intx,inty)//定义Max函数{intz=-0x7FFFFFFF;//32位最小整数if(x > y) { z = x; }else{ z = y; }returnz; } 计算机最大整数 原码、反码和补码在表示正整数时相同...
return 0; } int test_cmath_2() { { // std::fdim: The function returns x-y if x>y, and zero otherwise. printf("fdim (2.0, 1.0) = %f\n", std::fdim(2.0, 1.0)); // 1.0 printf("fdim (1.0, 2.0) = %f\n", std::fdim(1.0, 2.0)); // 0.0 printf("fdim (-2.0, -1.0)...
Return ValuesThe void keyword, used in the previous examples, indicates that the function should not return a value. If you want the function to return a value, you can use a data type (such as int or float, etc.) instead of void, and use the return keyword inside the function:...
What is the value of each of the following expressions in C89? (Give all possible values if an expression may have more than one value.) (a) 8 / 5 (b) -8 / 5 (c) 8 / -5 (d) -8 / -5 Solution (a) 1 (b) -1 or -2 ...
publicTuple<int,int>MultipleReturns(inta,intb){intmin,max;if(a>b){max=a;min=b;}else{max=b;min=a;}returnnewTuple<int,int>(min,max);} C# Copy In the code above, you notice that we have defined a function, calculated the minimum and maximum values and then returned a Tuple of typ...
#include <stdio.h> // 通用比较函数 int compare(const void *a, const void *b) { int intA = *(int *)a; int intB = *(int *)b; return intA - intB; } int main() { int values[] = {3, 1, 4, 1, 5, 9, 2, 6, 5, 3}; qsort(values, sizeof(values) / sizeof(values...
InterlockedDecrementNoFence function (Windows) InterlockedOr64NoFence function (Windows) IUIFramework2 interface (Windows) RIOCreateCompletionQueue function (Windows) SIO_QUERY_RSS_PROCESSOR_INFO control code (Windows) ARIA Container Tabindex Error (Windows) rcp (sm5 - asm) (Windows) switch (sm4 - as...
return_type function_name( parameter list ); 针对上面定义的函数 max(),以下是函数声明: int max(int num1, int num2); 在函数声明中,参数的名称并不重要,只有参数的类型是必需的,因此下面也是有效的声明: int max(int, int); 当您在一个源文件中定义函数且在另一个文件中调用函数时,函数声明是必需的...