Identifier: -
An identifier is the name that presents a variable, constant, data types, function, or label in a program. In the C language, an identifier consists of a combination of alphanumeric characters, such that:
• The first is always a letter of the alphabet or an (_) underscore.
• The remaining can be any letter, numeric digit, or the underscore.
There are two types of identifier in C language.
(1) Standard identifier (2) User-define identifier
(1) Standard identifier: -
The names of defined operations in C language are called identifier. For example, scanf and printf represent input and output functions. These are the standard identifiers.
(2) User- defined identifier: -
These are the names that a programmer assigns to function, data type, variable, etc. in a program.
Posted by: Wasim Javed
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