小编Woo*_*iae的帖子

我正在尝试实现一个struct person，我需要隐藏一些字段或使其保持不变。 创建私有字段的技巧。

标头：

#pragma once

#define NAME_MAX_LEN 20

typedef struct _person {
    float wage;
    int groupid;
} Person;

const char const *getName (Person *p);
int getId (Person *p);

/// OTHER FUNCTIONS

资源

#include "person.h"


struct _person
{
    int id;

    float wage;
    int groupid;

    char name[NAME_MAX_LEN];
};

/// FUNCTIONS

海湾合作委员会说 person.c:7:8: error: redefinition a 'struct _person' struct _person

我可以将其写在标题中，但是在此之后，就不能使用结构的字段。

typedef struct _person Person;

如何在 cmake 中创建一个将所有 C++ 文件收集到一个标题中的项目？

我有这个项目结构。

/
  project/
     folder1/
         file.cpp
         file.hpp
     folder2/
         ...etc
     CMakeLists.txt
  tests/
     test.cpp
     CMakeLists.txt
CMakeList.txt

根 cmakelists.txt

cmake_minimum_required (VERSION 3.8)

project ("CMakeProject"
    LANGUAGES C CXX)

set(CMAKE_EXECUTABLE_SUFFIX ".exe")

include(GNUInstallDirs)

add_subdirectory ("project")


option(ENABLE_TESTING OFF)

if (ENABLE_TESTING)
    enable_testing()
    add_subdirectory("tests")
endif()

项目中的 CMakeLists.txt

cmake_minimum_required (VERSION 3.8)

file(GLOB projectSRC
    "*/*.cpp"
    "*/*.hpp"
    "*.cpp"
    "*.hpp"
)

add_library(project INTERFACE)

message(STATUS "CMake inatall directory: " ${CMAKE_INSTALL_INCLUDEDIR})
target_include_directories(project 
    INTERFACE 
        $<BUILD_INTERFACE:${PROJECT_INCLUDE_DIR}>
        $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>)

并测试 cmakelist.txt

cmake_minimum_required (VERSION 3.8)

# install Catch2 testing library
# (https://github.com/catchorg/Catch2/blob/master/docs/cmake-integration.md#installing-catch2-from-git-repository or use packet manager) …