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Silver-Fang / Cpp_Standard_Library

面向Arduino平台的C++标准库
GNU General Public License v3.0
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arduino stl

readme

因原版ArduinoSTL作者长期不更新（上次更新是2022年），本人将此分支发布到Arduino公开库，改名为Cpp_Standard_Library以示区分。

本库试图在Arduino上实现C++11~17标准库（STL）的大部分功能。除了ArduinoSTL以外，本库部分功能实现还参考了MSVC、LLVM、boost和GCC。因为是按照STL做的接口，所以不需要另外撰写文档，你可以参考任何一个权威的STL文档。除非另有说明，否则本库的使用方法应该是一样的，如果不一样那应该就是个bug，欢迎提交Issue。

如果你需要某些标准库中应有而本库中尚未提供的功能，也欢迎提交Issue，作者将会优先为你实现。

支持以下架构：

对于SAM和ESP32架构，如欲使用C++标准异常处理和运行时类型识别（RTTI, typeid），还需要确保编译选项包含-fexceptions且不含-fno-rtti。AVR架构不支持异常处理，设置-fexceptions或使用try关键词将导致未定义行为。

在包含任何C++标准头文件之前，必须先包含Cpp_Standard_Library.h。这是对 Arduino IDE 的提示，告诉编译器必须要将本库纳入编译流程。

招牌功能（不限于此）

安装后记得查看示例项目！

原版README（仅供参考，部分内容已过时）

This is an implementation of a C++ standard library packaged as an Arduino library. The library supports teaching my CS-11M class by adding key C++ features into the Arduino environment.

The library is ported from uClibc++:

http://git.uclibc.org/uClibc++

With a streams implementation from Andy Brown's Arduino Library:

http://andybrown.me.uk/2011/01/15/the-standard-template-library-stl-for-avr-with-c-streams/

Using printf() and scanf()

The ArduinoSTL header file contains code to bind a serial port of your choice to the stdio primitives. This happens automatically but the user must still call Serial.begin()

#include <ArduinoSTL.h>

void setup() {
  Serial.begin(9600); 
  printf("Hello World\n");
}

Using cin an cout

When you include this header file you automatically get cin and cout based on Serial. See below for how to specify your own device. Here's an example sketch using cin and cout .

#include <ArduinoSTL.h>

using namespace std;

void setup() {
  Serial.begin(9600);
  cout << "Feed me an integers." << endl;
}

void loop() {
  int foo;
  if (cin >> foo) { 
    cout << "You fed me " << foo << endl;
  }else{
    cin.clear();
    cin.ignore();
  }
}

Changing the Serial Port

You can change what serial port that cin, cout and printf() use. You can use built-in serial ports (e.g. Serial1 on Leonardo) or you can use software serial ports that implement Stream.

Using a Built-in Port

In src/ArduinoSTL.cpp change the value of ARDUINOSTL_DEFAULT_SERIAL. Leave the other defaults uncommented.

Using a SoftwareSerial port.

Set ARDUINO_DEFAULT_SERAL to NULL. Comment out the other defaults.

Here's an example sketch that uses SofwareSerial:

#include <ArduinoSTL.h>
#include <SoftwareSerial.h>

SoftwareSerial mySerial(0, 1);

namespace std { 
  ohserialstream cout(mySerial);
  ihserialstream cin(mySerial);
}

void setup() {
  mySerial.begin(9600);
  ArduinoSTL_Serial.connect(mySerial);
}

Avoiding Instantiation of cin and cout

Comment out ARDUINOSTL_DEFAULT_CIN_COUT and nothing will be instantiated. You must comment out this flag if you intend to select a non-default serial port. There's no appreciable overhead for using printf() so you cannot currently avoid initializaing it.

Known Issues

Printing of floats and doubles using cout ignores format specifiers.

uClibc seems to be fairly complete. Strings and vectors both work, even with the limited amount of heap available to Arduino. The uClibc++ status page can be found here:

https://cxx.uclibc.org/status.html

Always use the latest Arduino IDE. This library uses the Arduino IDE Library Specification rev.2.1 with features only available on Arduino 1.6.10 and higher. The specification can be found here:

https://github.com/arduino/Arduino/wiki/Arduino-IDE-1.5:-Library-specification

License

The uClibc++ library is licensed under the LGPL. This project adopts the LGPL to be compatible with the bulk of the code that it uses. Unless otherwise noted all code is licensed under the LGPL. There's one exception: