Code convention

External libraries should not be used in this project.

Code should be formatted according to GNU Coding Standards.

Short naming convention

The "CamelCase" is not used at all.
Abbreviations are acceptable.
Functions should be named only in snake_case.
Variables should be named in snake_case, or as a short abbreviation:
```
int row_lenght;
// or:
int rlen;
```
Enums should be named in snake_case and always should be used with enum key word:
```
enum my_enum
```
Structures should be named in snake_case and always have type alias. In code, structures should be referenced only by their type aliases.

Type aliases for domain entities should be named in Snake_Case with capital first letters.

typedef struct {
 ...
} My_Mtruct;
// or:
struct another_struct;
typedef struct another_struct Another_Struct;