// MathFuncsLib.h
namespace MathFuncs
{
class MyMathFuncs
{
public:
// Returns a + b
static double Add(double a, double b);
// Returns a - b
static double Subtract(double a, double b);
// Returns a * b
static double Multiply(double a, double b);
// Returns a / b
static double Divide(double a, double b);
};
}
// MathFuncsLib.cpp
// compile with: cl /c /EHsc MathFuncsLib.cpp
// post-build command: lib MathFuncsLib.obj
#include "MathFuncsLib.h"
#include <stdexcept>
using namespace std;
namespace MathFuncs
{
double MyMathFuncs::Add(double a, double b)
{
return a + b;
}
double MyMathFuncs::Subtract(double a, double b)
{
return a - b;
}
double MyMathFuncs::Multiply(double a, double b)
{
return a * b;
}
double MyMathFuncs::Divide(double a, double b)
{
return a / b;
}
}
调用静态库
// MyExecRefsLib.cpp
// compile with: cl /EHsc MyExecRefsLib.cpp /link MathFuncsLib.lib
#include <iostream>
#include "MathFuncsLib.h"
using namespace std;
int main()
{
double a = 7.4;
int b = 99;
cout << "a + b = " <<
MathFuncs::MyMathFuncs::Add(a, b) << endl;
cout << "a - b = " <<
MathFuncs::MyMathFuncs::Subtract(a, b) << endl;
cout << "a * b = " <<
MathFuncs::MyMathFuncs::Multiply(a, b) << endl;
cout << "a / b = " <<
MathFuncs::MyMathFuncs::Divide(a, b) << endl;
return 0;
}
// MathLibrary.h - Contains declaration of Function class
#pragma once
#ifdef MATHLIBRARY_EXPORTS
#define MATHLIBRARY_API __declspec(dllexport)
#else
#define MATHLIBRARY_API __declspec(dllimport)
#endif
namespace MathLibrary
{
// This class is exported from the MathLibrary.dll
class Functions
{
public:
// Returns a + b
static MATHLIBRARY_API double Add(double a, double b);
// Returns a * b
static MATHLIBRARY_API double Multiply(double a, double b);
// Returns a + (a * b)
static MATHLIBRARY_API double AddMultiply(double a, double b);
};
}
// MathLibrary.cpp : Defines the exported functions for the DLL application.
// Compile by using: cl /EHsc /DMATHLIBRARY_EXPORTS /LD MathLibrary.cpp
#include "stdafx.h"
#include "MathLibrary.h"
namespace MathLibrary
{
double Functions::Add(double a, double b)
{
return a + b;
}
double Functions::Multiply(double a, double b)
{
return a * b;
}
double Functions::AddMultiply(double a, double b)
{
return a + (a * b);
}
}
调用动态库
// MathClient.cpp : Defines the entry point for the console application.
// Compile by using: cl /EHsc /link MathLibrary.lib MathClient.cpp
#include "stdafx.h"
#include <iostream>
#include "MathLibrary.h"
using namespace std;
int main()
{
double a = 7.4;
int b = 99;
cout << "a + b = " <<
MathLibrary::Functions::Add(a, b) << endl;
cout << "a * b = " <<
MathLibrary::Functions::Multiply(a, b) << endl;
cout << "a + (a * b) = " <<
MathLibrary::Functions::AddMultiply(a, b) << endl;
return 0;
}