在C ++中为OSX创建共享库 [英] Creating shared libraries in C++ for OSX
问题描述
我刚刚开始在C ++中编程,我意识到我一直要重复编写相同的代码(主要是效用函数)。
I just started programming in C++ and I've realized that I've been having to write the same code over and over again(mostly utility functions).
所以,我试图创建一个共享库并安装在PATH中,以便我可以使用的效用函数,当我需要。
So, I'm trying to create a shared library and install it in PATH so that I could use the utility functions whenever I needed to.
这是我做了到目前为止: -
Here's what I've done so far :-
使用以下内容创建文件 utils.h
: -
Create a file utils.h
with the following contents :-
#include<iostream>
#include<string>
std::string to_binary(int x);
创建一个文件 utils.cpp
以下内容: -
Create a file utils.cpp
with the following contents :-
#include "utils.h"
std::string to_binary(int x) {
std::string binary = "";
while ( x > 0 ) {
if ( x & 1 ) binary += "1";
else binary += "0";
x >>= 1;
}
return binary;
}
按照以下步骤操作:
http://www.techytalk.info/c-cplusplus-library-programming- on-linux-part-two-dynamic-libraries /
- 创建库对象代码:
g ++ -Wall -fPIC -c utils.cpp
- Create the library object code :
g++ -Wall -fPIC -c utils.cpp
但是由于上面的链接是Linux的在OSX上不工作。有人建议阅读资源或建议提示如何在OSX机器上的路径中编译和设置这些对象?
But as the link above is meant for Linux it does not really work on OSX. Could someone suggest reading resources or suggest hints in how I could go about compiling and setting those objects in the path on an OSX machine?
此外,我猜应该是一种方式,我可以使这个跨平台(即写一组指令(bash脚本)或一个Makefile),以便我可以使用跨平台轻松地编译。任何提示?
Also, I'm guessing that there should be a way I can make this cross-platform(i.e. write a set of instructions(bash script) or a Makefile) so that I could use to compile this easily across platforms. Any hints on that?
推荐答案
使用 -dynamiclib
OS X上的动态库:
Use -dynamiclib
option to compile a dynamic library on OS X:
g++ -dynamiclib -o libutils.dylib utils.cpp
然后在客户端应用程序中使用它:
And then use it in your client application:
g++ client.cpp -L/dir/ -lutils
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