在Visual Studio 2008中逐步调用intel Fortran 11的C函数 [英] Calling C function from intel Fortran 11 in Visual studio 2008 step by step procedure

问题描述

请给我一步一步回答示例，如何在Visual Studio 2008中从Fortran调用C函数。我的Fortran编译器正在Visual Studio 2008中工作。在哪里我应该保留C和Fortran文件，为此我需要一个C编译器或不？

Please give me a step by step answer with example, how to call a C function from Fortran in visual studio 2008. My Fortran compiler is working in visual studio 2008. Where I should keep the C and Fortran files and for this I need a C compiler or not?.

推荐答案

您最好使用MinGW之类的Windows构建环境。安装它并确保包含gcc.exe，make.exe等的MinGW目录在你的路径中。你需要帮助吗？

You are best off using a Windows build environment such as MinGW. Install that and make sure the MinGW directory containing gcc.exe, make.exe etc is in your path. Do you need help setting that up?

接下来你编写C文件并将其编译到一个目标文件中：

Next you write the C file and compile it to an object file:

gcc -c -o c_file.obj c_file.c

例如，你的c文件可能是：

For example, your c file might be:

#include <stdio.h>

void my_c_function() {
    printf("Entering my_c_function()...\n");
}

现在您需要为Fortran编译器提供C函数的接口：

Now you need to provide an interface to the Fortran compiler for the C function:

module foo
    use ISO_C_Binding

    interface
        subroutine my_c_function() bind(C,name="my_c_function")
        end subroutine
    end interface

end module foo

program main
    use foo

    call my_c_function()

end program

您将需要告诉链接器关于目标文件c_file.obj。我假设你正在使用Visual Studio IDE。转到项目属性 - >链接器 - >输入，并将c_file.obj添加到其他依赖项。它应该工作得很好。

You will need to tell the linker about the object file c_file.obj. I'm assuming you're using the Visual Studio IDE. Go to Project Properties -> Linker -> Input, and add c_file.obj to "Additional dependencies". It should then work fine.

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