What's this lib?

This is a library maintained by myself which includes the general functions I've ever used to solve certain problems using C programming language.

What's the design criteria?

Easy to port

This means these functions should run on a modern amd64 machine, but also on embedded platforms with limited standard library support, e.g., malloc.
Easy to modify

The structure of the codes should be clear and easy to understand. For example, the allocation of matrix_t depends on malloc function families, but it is easy to modify it into static declared variables by investigating matrix_create and matrix_destroy functions only, or by using provided macro MATRIX_CREATE_STATIC.
Easy to accelerate

In some application scenes where the performance of program is critical, this library should give a clear guide on acceleration.
Easy to decouple

It is okay to compile entire library, but it should be also possible to use only several header and source files from this library.
No warning generated

No warning from the compiler would be tolerated.