| C standard library | C11 standard library implemented by [libc, libm, and libdl](https://en.cppreference.com/w/c/header). |
| C++ standard library ([libc++](https://libcxx.llvm.org/))| An implementation of the C++ standard library. |
| [OpenSL ES](https://www.khronos.org/registry/OpenSL-ES/)| An embedded cross-platform audio processing library.|
| [zlib](https://zlib.net/) | A general data compression library implemented in C/C++.|
## C Standard Library
C11 standard library implemented by [libc, libm, and libdl](https://en.cppreference.com/w/c/header).
libc: provides thread-related functions and a majority of standard functions.
libm: provides basic mathematical functions.
libdl: provides functions related to dynamic linking, such as dlopen.
**Version**
1.2.0
**Capabilities**
C standard library includes a set of header files in accordance with standard C and provides common functions, such as the functions related to input/output (I/O) and string control.
**<font size=5>musl</font>**
[Native API Symbols Not Exported](musl-peculiar-symbol.md)
## C++ Standard Library
[libc++](https://libcxx.llvm.org/) is an implementation of the C++ standard library.
**Version**
10.0.1
**Capabilities**
The C++11 and C++14 standards are supported, and the C++17 and C++20 standards are on the way.
## OpenSL ES
[OpenSL ES](https://www.khronos.org/registry/OpenSL-ES/) is an embedded cross-platform audio processing library.
## zlib
[zlib](https://zlib.net/) is a general data compression library implemented in C/C++.