include

#include <rules>
----
- 51 minutes ago | 4 points | 0 comments
- URL: https://zeux.io/2010/11/15/include-rules/
- Discussions: https://news.ycombinator.com/item?id=39249430
- Summary: This post discusses the importance of properly managing header files in C++ projects to ensure fast builds and minimizeheader dependency issues. The author outlines two important rules: each file should include the minimum amount of files and each file should include all dependent headers. The post also covers header guards and includes an introduction to using #pragma once. The goal is to maintain self-contained, easily included headers, with a focused on minimizing dependencies and optimizing build times.

Show HN: Hancho – A simple and pleasant build system in ~500 lines of Python
----
- 2 hours ago | 4 points | 0 comments
- URL: https://github.com/aappleby/hancho
- Discussions: https://news.ycombinator.com/item?id=39580136
- Summary: Hancho is a simple build system written in Python requiring no installation. It is inspired by Ninja and Bazel, combining their features for faster compilation and ability to call arbitrary Python code. Hancho fits in 500 lines of code, suitable for small to medium sized projects. Here's an example showing how it works with a 'hello\_world' project.

In the `build.hancho` file for the examples folder:
```python
# Any description, website, or topics omitted

config.set(build_dir = "build")

compile = Rule(
desc = "Compile {files_in} -> {files_out}",
command = "g++ -MMD -c {files_in} -o {files_out}",
files_out = "{swap_ext(files_in, '.o')}",
depfile = "{swap_ext(files_out, '.d')}"
)

link = Rule(
desc = "Link {files_in} -> {files_out}",
command = "g++ {files_in} -o {files_out}"
)

main_o = compile("main.cpp")
main_app = link(main_o, "app")
```
In the `main.cpp` file:
```cpp
#include <stdio.h>

int main(int argc, char** argv) {
printf("Hello World\n");
return 0;
}
```
To build the project, simply run `./hancho.py --verbose` from the project folder. Hancho will compile (and rebuild as needed) the source files and generate the binary output accordingly. The output displays the progress of each build step.

Hancho repositories host the same documentation as GitHub, and there is an initial release from 2024-03-02. GitHub provides resources for the Hancho build system, including a repository with the 'README.md' file, a issues tab for reporting bugs or suggesting improvements, and a pull requests tab for submitting feature additions or fixes. The project is written in Python (98.2%) and some C++ (1.8%).

本世纪中叶，将把C++建成自动主义现代化强语言
#include<ai.h>;

Hrbust ACM练习 2024级第11周题单 题解分享 (A-B)相关文章链接 算法题练习 题解分享 文章汇总 前言 题单链接：2024第11周题单 图论基础 - Virtual Judge A 题 原题链接：P5318 【深基18.例3】查找文献 - 洛谷 Cpp Code #include using namespace st https://www.blogtalk.org/go?from=feed&link=https%3A%2F%2Fhowiehz.top%2Farchives%2Fhrbustacm-class-of-2024-week-11-questionnaire

Hrbust ACM练习 2024级第12周题单 题解分享 (A-B)相关文章链接 算法题练习 题解分享 文章汇总 前言 题单链接：2024第12周题单 图论基础 - Virtual Judge A 题 原题链接：P5318 【深基18.例3】查找文献 - 洛谷 Cpp Code #include using namespace st https://www.blogtalk.org/go?from=feed&link=https%3A%2F%2Fhowiehz.top%2Farchives%2Fhrbustacm-class-of-2024-week-12-questionnaire

well, I was bored to hell so here’s a program to use if you want a DOS-like prompt for your UNIX shell

tested with ksh93, bash, and zsh, simply compile this and set PS1, PROMPT, or whatever variable your shell uses to '$(/path/to/binary)'

#include <stdio.h>#include <stdlib.h>int main(void) { char *path = getenv("PWD"); for (char *chr = path; *chr; chr++) { if (*chr == '/') { *chr = '\\'; } } printf("C:%s> ", path); return 0;}

C++的异步编程: std::future, std::async 和 std::promise在 C++ 中，std::future 和 std::async 是 C++11 标准 并发库的一部分。它们允许您异步/Asynchronous运行任务并在稍后获取结果，非常适合编写非阻塞代码和并行化计算。以下是它们的工作原理和典型用法。 C++ std::async std::async 是一个高级函数，允许您异步启动一个任务（一个可调用对象，如函数或 lambda）。您指定要运行的函数，std::async 返回一个表示该 函数结果的 std::future。您可以稍后获取该结果，无论是任务完成时还是您需要时。 #include
#include
#include

int compute() {
std::this_thread::sleep_for(std::chrono::seconds(2));https://www.blogtalk.org/go?from=feed&link=https%3A%2F%2Fjustyy.com%2Farchives%2F66477

C/C++：为什么 a[i][j] 等价于 *(*(a+i)+j)前言 如果你较熟悉前置相关知识可直接跳转 第三章。 初探：指针的 +、-、++、-- 操作 自增操作对于指针所指向地址的影响 编译以下代码 #include using namespace std; const int M = 3; int main() { https://www.blogtalk.org/go?from=feed&link=https%3A%2F%2Fhowiehz.top%2Farchives%2Fwhy-a%255Bi%255D%255Bj%255D-is-equivalent-to-%252A%2528%252A%2528a%252Bi%2529%252Bj%2529

简易教程: C++的智能指针C++ 智能指针教程 C++ 中的智能指针提供了自动且安全的内存管理。它们通过 RAII（资源获取即初始化）机制，帮助开发者避免内存泄漏和悬空指针的问题，确保对象在生命周期结束时被正确释放。 本教程将介绍 C++ 中三种主要的智能指针： std::unique_ptr：独占式所有权 std::shared_ptr：共享式所有权 std::weak_ptr：非拥有式弱引用 1. std::unique_ptr unique_ptr 拥有独占所有权。一个资源只能被一个 unique_ptr 拥有。 示例：管理简单对象 #include
#include

int main() {
std::unique_ptr p = std::make_unique(42);
std::cout https://www.blogtalk.org/go?from=feed&link=https%3A%2F%2Fjustyy.com%2Farchives%2F68855

谈谈printf()和scanf() | C语言基础不同于Python，直接就可以使用类似的print()和input()，C语言中这两个库函数都需要引入最基础的表示输入输出的stdio.h头文件 #include 博主环境使用Windows 11，C语言IDE大多用的是Visual Studio 2022，校内使用CFree5； 按认识顺序撰文，从helloworld认识printf()，而后认识scanf() 1. printf() 打印输出 参考文档：https://zh.cppreference.com/w/c/language/arithmetic_types#.E6.95.B0.E6.8D.AE.E6.A8.A1.E5.

谈谈printf()和scanf() | C语言基础不同于Python，直接就可以使用类似的print()和input()，C语言中这两个库函数都需要引入最基础的表示输入输出的stdio.h头文件 #include 博主环境使用Windows 11，C语言IDE大多用的是Visual Studio 2022，校内使用CFree5； 按认识顺序撰文，从helloworld认识printf()，而后认识scanf() 1. printf() 打印输出 参考文档：https://zh.cppreference.com/w/c/language/arithmetic_types#.E6.95.B0.E6.8D.AE.E6.A8.A1.E5.

#include <stdio.h>

int main() {
printf("Hello, World!\n");
return 0;
}

#Recursion

When I do it:

#include <stdio.h>
long int factorial(int number) {
if(number >= 1)
return number*factorial(number-1);
else
return 1;
}

When #DollarGeneral does it:

#D3

C++中的assert和static_assert的区别C++ assert 与 static_assert 的区别 C++ 提供了两种机制来验证程序中的假设（断言）：assert 和 static_assert。虽然它们看起来类似，但它们在不同的阶段工作，并且用途也不同。 🔍 assert — 运行时检查/断言 assert 用于在程序运行时验证条件是否成立。如果条件为假，程序会打印错误信息并中止运行。 #include

int divide(int x, int y) {
assert(y != 0); // 如果 y 为 0，程序会中止
return x / y;
} assert 通常只在调试模式下启用，如果定义了 NDEBUG，这些断言会被禁用。 🧱 static_assert — 编译时检查/静态断言 static_assert https://www.blogtalk.org/go?from=feed&link=https%3A%2F%2Fjustyy.com%2Farchives%2F68951