Identifier names are unique. Cannot use a keyword as identifiers. Identifier has to begin with a letter or underscore (_). It should not contain white space. Special characters are not allowed. Identifiers can consist of only letters, digits, or underscore. Only 31 characters are significant.
Identifier is one of the tokens which are used in C programming language. It is a name which is used to identify the variables, constants, functions, arrays, and also user-defined data.
We cannot use keywords as identifiers because keywords are reserved for special use. Once declared, we can use the identifier in later program statements which refers to the associated value.
special kind of identifier is known as a statement label and it can be used in goto statements.
∞∞Rules
The rules for naming identifiers are as follows −
→Identifier names are unique.
→Cannot use a keyword as identifiers.
→Identifier has to begin with a letter or underscore (_).
→It should not contain white space.
→Special characters are not allowed.
→Identifiers can consist of only letters, digits, or underscore.
Answers & Comments
Verified answer
Identifier names are unique.Cannot use a keyword as identifiers.
Identifier has to begin with a letter or underscore (_).
It should not contain white space.
Special characters are not allowed.
Identifiers can consist of only letters, digits, or underscore.
Only 31 characters are significant.
Answer:
Identifiers
Identifier is one of the tokens which are used in C programming language. It is a name which is used to identify the variables, constants, functions, arrays, and also user-defined data.
We cannot use keywords as identifiers because keywords are reserved for special use. Once declared, we can use the identifier in later program statements which refers to the associated value.
special kind of identifier is known as a statement label and it can be used in goto statements.
∞∞Rules
The rules for naming identifiers are as follows −
→Identifier names are unique.
→Cannot use a keyword as identifiers.
→Identifier has to begin with a letter or underscore (_).
→It should not contain white space.
→Special characters are not allowed.
→Identifiers can consist of only letters, digits, or underscore.
→Only 31 characters are significant.
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They are case sensitive.