C Language Grammar

Source: Internet
Author: User
Tags modifier

External declarations for Programs | Program external declarations

External declaration, modifier variable name parameter

Modifier->void | int | char | Float

Parameter---modifier function name | modifier pointer variable name

Function name->l | IL | Id

l->a|b|c|...| Z

d->0|1|2|...| 9


Pointers, ' * ' | ' * ' pointer

External declaration Function Body | Main () function body | external declaration Function Body

Inner Declaration statement list, function body | Statement list

Inner declaration, modifier variable name Internal declaration | modifier pointer Variable name | Variable name '; ' | ‘;‘

Statement list, conditional statements | Assignment statements

Assignment statement, variable name ' = ' E

Variable name-〉 function name

E-〉e+t| E-t| T

T->t*f| T/f| F

f->f^p| P

P-> (E) |i

Conditional statement--Conditional statement 1| conditional Statement 2

Conditional statement 1->IF Condition CONDITION Statement 1 Else conditional Statement 1 | Statement list

Conditional Statement 2->IF Condition | If condition condition Statement 1 Else Conditional statement 2

C Language Grammar

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