# pybind11_study

**Repository Path**: whu-dft/pybind11_study

## Basic Information

- **Project Name**: pybind11_study
- **Description**: Repository that store the learning process of pybind11
- **Primary Language**: C++
- **License**: Apache-2.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 1
- **Forks**: 0
- **Created**: 2019-07-03
- **Last Updated**: 2020-12-19

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# pybind11_study

#### Description
Repository that store the learning process of pybind11

#### Software Architecture
Software architecture description

#### Installation

1. xxxx
2. xxxx
3. xxxx

#### Instructions

1. xxxx
2. xxxx
3. xxxx

#### Contribution

1. Fork the repository
2. Create Feat_xxx branch
3. Commit your code
4. Create Pull Request

### FAQ

#### Q1. 采用CMake编译pybind11文件，报错"Unknown CMake command "pybind11_add_module"".

其中CMakeFile.txt内容如下：

```cmake
cmake_minimum_required(VERSION 3.0)
project(cmake_example)

add_subdirectory(/home/fdd/Github/pybind11)
pybind11_add_module(cmake_example example.cpp)
```

pybind11_add_module是pybind11模块自带的CMake命令，add_subdirectory需要将pybind11的路径包含进去，
但是这样还不够。CMake编译命令要求pybind11的目录为当前CMakefile的子目录。错误输出信息中提示：

```bash
add_subdirectory not given a binary directory but the given source
  directory "/home/fdd/Github/pybind11" is not a subdirectory of
  "/home/fdd/Git_study/pybind11_study/step2_cls_wrap".
```

因此，我们需要对pybind11的项目目录做一个软连接是满足pybind11的CMake编译规则。

```bash
ln -s /home/fdd/Github/pybind11 pybind11
```

CMakeFile内容修改为：

```cmake
cmake_minimum_required(VERSION 3.0)
project(cmake_example)

add_subdirectory(pybind11)
pybind11_add_module(cmake_example example.cpp)
```

因此在pybind11的编译项目中，都建议将pybind11的项目做软链接，然后通过在CMakeFile.txt中添加
add_subdirectory(pybind11)来实现pybind11的编译。