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STRUCT C 基础库

雕琢 C 入门的华山剑法, 为那会的一时性起 ~>--

Update

当前时间 下步计划 进展情况
2021年02月24日 等最新 Visual Studio 正式版发布, 筹备浴火重生 等待
2021年12月30日 回归简单友好 Linux 开发 开始
2022年01月19日 C 菜鸟之旅 版本发布 新生
2022年03月24日 C 菜鸡之旅 全力拥抱 Linux 起点
2022年06月26日 挖坑 期待欲火
2022年12月23日 雕琢 手册版本
2023年08月05日 不忘初心, 重新梳理学习简单版本 C 实战教学版本
2024年06月20日 缩减一些代码, 方便新手学习体会 C

浪花不会一点点

优先级 运算符 描述 结合性
1 ++ -- 后缀自增与自减 从左到右
() 函数调用
[] 数组下标
. 结构体与联合体成员访问
-> 结构体与联合体成员通过指针访问
(type){list} 复合字面量
2 ++ -- 前缀自增与自减 从右到左
+ - 一元加与减
! ~ 逻辑非与逐位非
* 间接(解引用)
& 取址
sizeof 取大小
_Alignof 对齐要求
3 * / % 乘法及除法及余数 从左到右
4 + - 加法及减法 从左到右
5 << >> 逐位左移及右移 从左到右
6 < <= 分别为 < 与 ≤ 的关系运算符 从左到右
> >= 分别为 > 与 ≥ 的关系运算符 从左到右
7 == != 分别为 = 与 ≠ 关系 从左到右
8 & 逐位与 从左到右
9 ^ 逐位异或(排除或) 从左到右
10 | 逐位或(包含或) 从左到右
11 && 逻辑与 从左到右
12 || 逻辑或 从左到右
13 ?: 三元条件 从右到左
14 = 简单赋值 从右到左
+= -= 以和及差赋值
*= /= %= 以积及商及余数赋值
<<= >>= 以逐位左移及右移赋值
&= ^= |= 以逐位与及异或及或赋值
15 , 逗号 从左到右

核心 package

struct 数据结构练习包
system 系统封装排练包
module 业务模块
test   模糊测试集

设计 code

struct, json, socket, thread ...

来协助搭建 C 项目, 提供基础数据结构和额外组件的支持 ...

...

代码风格, 希望"最"贴近原生 api

pthread.h

#pragma once

#include <pthread.h>
#include <semaphore.h>

#include "struct.h"
#include "spinlock.h"

//
// pthread_async - 启动无需等待的线程
// frun     : node_f or ... 运行主体
// arg      : 运行参数
// return   : 0 is success, -1 is error
// 
extern int pthread_async(void * frun, void * arg);

//
// thread_async - 强制启动无需等待线程
// frun     : node_f or ... 运行主体
// return   : void 
//
inline void thread_async(void * frun) {
    IF(pthread_async(frun, NULL));
}

//
// pthread_run - 启动线程
// p        : 指向线程 id 的指针
// frun     : node_f or ... 运行主体
// arg      : 运行参数
// return   : 0 is success, -1 is error
//
inline int pthread_run(pthread_t * p, void * frun, void * arg) {
    return pthread_create(p, NULL, frun, arg);
}

//
// pthread_end - 等待线程运行结束
// tid      : 线程 id
// return   : void
//
inline void pthread_end(pthread_t id) {
    pthread_join(id, NULL);
}

chars.h

// 轻量 char * 串
//
// declare 构建 : struct chars var = {};
// free         : free(var.str);
// 
struct chars {
    size_t len;     // 长度
    size_t cap;     // capacity 容量
    char * str;     // char * 字符串
};

log.h

也许要扯些

structc 环境搭建

- Linux 构建运行
    - Debug   : make
    - Clean   : make clean
    - Release : make D=-DNDEBUG

- 工程目录述
    - main 目录
        - main::exec.c 业务起点
        - main::init.c 模块初始化
        - test::test.c test 代码模糊测试
    - test 目录
        - *_test.c -> void *_test(void) { ... }

推荐使用最新 master 版本

IDE 弱议

Linux 抛砖引玉带大家配哈 VS Code Best Version 详情 @see .vscode

0. 安装 C/C++ Microsoft 插件

1. F1 -> Edit Configurations -> c_cpp_properties.json

{
    "configurations": [
        {
            "name": "Linux",
            "includePath": [
                "${workspaceFolder}/**",
                "${workspaceRoot}/modular/main",
                "${workspaceRoot}/modular/module",
                "${workspaceRoot}/modular/struct",
                "${workspaceRoot}/modular/system"
            ],
            "defines": [
                "_DEBUG",
                "__GNUC__",
                "__linux__",
                "_GNU_SOURCE"
            ],
            "compilerPath": "/usr/bin/gcc"
        }
    ],
    "version": 4
}
2. F5 -> C++(GDB/LLDB) -> launch.json
   按照规律改 program 项目生成 和添加 preLaunchTask 前置任务行

            "program": "${workspaceFolder}/bin/main.out",
            "preLaunchTask": "Debug",
3. F1 -> [>Tasks: Configure Task] -> [Others] -> tasks.json
   构建下面任务

{
    "tasks": [
        {
            "type"    : "shell",
            "label"   : "Test",
            "command" : "make test"
        },
        {
            "type"    : "shell",
            "label"   : "Debug",
            "command" : "make"
        },
        {
            "type"    : "shell",
            "label"   : "Release",
            "command" : "make D=-DNDEBUG"
        },
    ],
    "version": "2.0.0"
}
4. [settings.json] 设置 *.h 是 C 文件格式

{
    "files.associations": {
        "*.h": "c"
    }
}
核心思路是配置 VSCode C Studio 联动 Makefile Debug 调试.
此刻有了这些, 有兴趣的就可以 F5 F10 F11 随心所欲开始冒险之旅.

总的而言是要比 vi + gcc + gdb 好那么一丢丢 ~ ❤

~ * ~ 为要寻一个写手

为要寻一个明星
- 徐志摩

我骑着一匹拐腿的瞎马，
向着黑夜里加鞭；——
向着黑夜里加鞭，
我跨着一匹拐腿的瞎马！

我冲入这黑绵绵的昏夜，
为要寻一颗明星；——
为要寻一颗明星，
我冲入这黑茫茫的荒野。

累坏了，累坏了我胯下的牲口，
那明星还不出现；——
那明星还不出现，
累坏了，累坏了马鞍上的身手。

这回天上透出了水晶似的光明，
荒野里倒着一只牲口，
黑夜里躺着一具尸首。——
这回天上透出了水晶似的光明！

:) Wuayramanta

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Lightweight C structure base library

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