Constructs an unnamed object of specified type in-place, used when a variable of array, struct, or union type would be needed only once.

Syntax _Static_assert ( expression

Changes the current line number and file name in the preprocessor. Syntax

Assignment and compound assignment operators are binary operators that modify the variable to their left using the value to their right.

An identifier is an arbitrarily long sequence of digits, underscores, lowercase and uppercase Latin letters, and Unicode characters

Includes another source file into the current source file at the line immediately after the directive. Syntax

Statements are fragments of the C program that are executed in sequence. The body of any function is a compound statement, which, in turn is a sequence of statements and declarations:

An object whose identifier is declared with the storage-class specifier _Thread_local (since C11) has thread storage

When an identifier is encountered in a C program, a lookup is performed

When initializing an object of scalar type, the initializer must