c++ 案例代码

CMake构建/v1/CMakeLists.txt

@@ -0,0 +1,3 @@
+cmake_minimum_required(VERSION 3.2)
+project(test)
+add_executable(app add.cpp div.cpp mult.cpp main.cpp sub.cpp)

CMake构建/v1/add.cpp

@@ -0,0 +1,9 @@
+#include <stdio.h>
+#include "head.h"
+
+const char* libVersion = "Library Version 1.0";
+
+int add(int a, int b)
+{
+    return a+b;
+}

CMake构建/v1/div.cpp

@@ -0,0 +1,7 @@
+#include <stdio.h>
+#include "head.h"
+
+double divide(int a, int b)
+{
+    return (double)a/b;
+}

CMake构建/v1/head.h

@@ -0,0 +1,11 @@
+#ifndef _HEAD_H
+#define _HEAD_H
+
+int add(int a, int b);
+
+int subtract(int a, int b);
+
+double divide(int a, int b);
+
+int multiply(int a, int b);
+#endif

CMake构建/v1/main.cpp

@@ -0,0 +1,14 @@
+#include <stdio.h>
+#include "head.h"
+
+int main()
+{
+    int a = 20;
+    int b = 12;
+    printf("a = %d, b = %d\n", a, b);
+    printf("a + b = %d\n", add(a, b));
+    printf("a - b = %d\n", subtract(a, b));
+    printf("a * b = %d\n", multiply(a, b));
+    printf("a / b = %f\n", divide(a, b));
+    return 0;
+}

CMake构建/v1/mult.cpp

@@ -0,0 +1,7 @@
+#include <stdio.h>
+#include "head.h"
+
+int multiply(int a, int b)
+{
+    return a*b;
+}

CMake构建/v1/sub.cpp

@@ -0,0 +1,7 @@
+#include <stdio.h>
+#include "head.h"
+
+int subtract(int a, int b)
+{
+    return a-b;
+}