How to use C Libraries for Arduino code

Question

I have a code in Visual studio that I want to implement in Arduino. But there is a problem. Many libraries usable in Visual Studio aren't usable in Arduino IDE. How can I use them in my Arduino code. To be precise, the libraries I want to use are

#include <iostream>
#include <iomanip>
#include <queue>
#include <string>
#include <math.h>
#include <ctime> 

respectively.

Okay so I know I have <iostream> available in Arduino. <math.h> is also available I think along with <string> library.

The main problem is to how to use #include <queue> and its functions such as priority_queue() and other fucntions of iostream like .pop()?

• rost0031: Libraries you want to use: #include , #include , #include , #include , #include , #include. You may want to edit your question to include the actual header file names.
• too honest for this site: You can not. Just read an intro into Arduino. Also note that the Arduino language is neither C nor C++, so the tags are wrong here.
• πάντα ῥεῖ: @rost0031 You were just blinded by inappropriate formatting.
• Thomas Matthews: Are you trying to access C language libraries from C++? Your question title asks about C libraries by the language tag is C++.
• πάντα ῥεῖ: @OP Not these aren't different libraries, but header files bound to the c++ standard library implementation, that's coming with your c++ compiler.

Answer 1

Arduino behind the scenes is using the avr-gcc compiler, which provides support for many of the features of the C++ language. It does not, however, include an implementation of libstdc++, which means that a lot of the libraries and features you are used to having with other development environments are just not there. A big reason for this is that it is just not practical to implement some of that functionality on a small microcontroller.

There are several libraries available that implement simplified versions of some of the functions and data structures you are wanting to use. You can find a list (but not necessarily a complete one) of these libraries here:

http://playground.arduino.cc/Main/LibraryList

For example QueueList might be a good alternative to <queue>.

Whatever you find, you are likely to have to refactor your code to use them. When you run into problems implementing those libraries and changes, I would recommend heading over to https://arduino.stackexchange.com/ to get more arduino specific answers.

• AZ123: Thanks alot jack C that was really helpful, I'll update you once I implement them on my arduino code

Answer 2

It is detailed over here:

https://www.arduino.cc/en/Hacking/BuildProcess

The include path includes the sketch's directory, the target directory (/hardware/core//) and the avr include directory (/hardware/tools/avr/avr/include/), as well as any library directories (in /hardware/libraries/) which contain a header file which is included by the main sketch file.

And these are the libraries supported by avr-gcc (the compiler that Arduino uses)

http://www.nongnu.org/avr-libc/user-manual/modules.html