Toy Programming Language

Appearance

Variables ​

Variables are the most important mechanism for memory management, which is used in almost all programming languages. So, tpl-lang is no exception and style of variables definition looks exactly like in C language.

Definition ​

datatype varname;
datatype varname = value;

Explanation ​

Variable - the tool, that provides you to keep and edit information. In low level variable is just a pointer to memory address with ownership on it:

tpl-lang
int32 no_init;
void empty;
int32 a = 1;
int8 b = 5;
| 5 | 1 | 0 | 0 |
  |   |   |   |---> int32 no_init;
  |   |   |--------> void empty;
  |   |-------------> int32 a = 1;
  |------------------> int8 b = 5

On the another side we have pointers! But there's no different mechanics in this word.
Pointers on variables is just a pointer, that contains pointer to the same variable adress.

tpl-lang
int32 a = 123;
int32* b = &a;
| 123 | ... | ... | ... |
   |
   |-----> int32 a = 123;
                 |
                 |--------> int32* b = &a;