在书里看到的,摘录如下: #include <iostream> #include <stdexcept> template<class T> struct is_C_style_string:std::false_type{}; template<> struct is_C_style_string<char*>:std::true_type{}; template<> struct is_C_style_string<con…

Awesome Modern C++ A collection of resources on modern C++. The goal is to collect a list of resouces to help people learn about and leverage modern C++11 and beyond. Contributing To add, remove or change things on the list: please submit a pull requ…

C++ format 格式化字符串实现方式 1. http://stackoverflow.com/questions/2342162/stdstring-formatting-like-sprintf You can't do it directly, because you don't have write access to the underlying buffer (until C++11; see Dietrich Epp's comment). You'll have to do…

Concept: Type Checking There is no static type checking in Scheme; type checking is done at run time. There is unfortunately little agreement about many of the terms which are associated with type checking: so I'll give you the definitions we'll use…

Swift is a type-safe language. A type safe language encourages you to be clear about the types of values your code can work with. If part of your code requires a String, you can’t pass it an Int by mistake. Because Swift is type safe, it performs typ…

This section deals with more theoretical aspects of types. A type system is a set of rules used by a language to structure and organize its collection of types. We use the term object (or data object) to denote both the storage and the stored value.…

说明 fmt 包实现了格式化 I/O 函数,类似于 C 的 printf 和 scanf格式“占位符”衍生自 C,但比 C 更简单 常用格式化输出 fmt.Printf("start at number %v, end count %v\n",start, count) 注意参数输出数量和占位符数量要一致 IDEA开发快速格式化模板 使用IDEA开发可以配置自定义代码模板快速生成 Settings -> Editor -> Live Templates 选中 go 语言展开…

fmt 包实现了格式化I/O函数,类似于C的 printf 和 scanf. 格式“占位符”衍生自C,但比C更简单. fmt 包的官方文档对Printing和Scanning有很详细的说明.这里就直接引用文档进行说明,同时附上额外的说明或例子,之后再介绍具体的函数使用. 以下例子中用到的类型或变量定义: type Website struct { Name string } // 定义结构体变量 var site = Website{Name:"studygolang"} 1.1. P…

我们经常用到的输入和输出,都是以终端为对象的,即从键盘输入数据,运行结果输出到显示器屏幕上.从操作系统的角度看,每一个与主机相连的输入输出设备都被看作一个文件.除了以终端为对象进行输入和输出外,还经常用磁盘(光盘)作为输入输出对象,磁盘文件既可以作为输入文件,也可以作为输出文件.程序的输入指的是从输入文件将数据传送给程序,程序的输出指的是从程序将数据传送给输出文件.C++输入输出包含以下三个方面的内容: 对系统指定的标准设备的输入和输出.即从键盘输入数据,输出到显示器屏幕.这种输入输出称为标准的…

Background C++ is one of the main development languages used by many of Google's open-source projects. As every C++ programmer knows, the language has many powerful features, but this power brings with it complexity, which in turn can make code more…