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  1. Identifier - Wikipedia

    In computer science, identifiers (IDs) are lexical tokens that name entities. Identifiers are used extensively in virtually all information processing systems. Identifying entities makes it possible to …

  2. Identifiers in C - GeeksforGeeks

    Sep 18, 2025 · In C programming, identifiers are the names used to identify variables, functions, arrays, structures, or any other user-defined items. It is a name that uniquely identifies a program element …

  3. IDENTIFIER Definition & Meaning - Merriam-Webster

    The meaning of IDENTIFIER is one that identifies.

  4. C Keywords and Identifiers - Programiz

    In this tutorial, you will learn about keywords; reserved words in C programming that are part of the syntax. Also, you will learn about identifiers and naming rules for identifiers (variables and functions).

  5. IDENTIFIER | definition in the Cambridge English Dictionary

    The nuances can confuse the system's structure and corrupt important identifiers and markers -- where a coastline begins or a road or railway ends.

  6. C Identifiers | Microsoft Learn

    Jan 25, 2023 · "Identifiers" or "symbols" are the names you supply for variables, types, functions, and labels in your program. Identifier names must differ in spelling and case from any keywords. You …

  7. Identifiers - cppreference.com

    Dec 21, 2024 · Identifiers are case-sensitive (lowercase and uppercase letters are distinct), and every character is significant. Every identifier must conform to Normalization Form C.

  8. C++ Identifiers - W3Schools

    All C++ variables must be identified with unique names. These unique names are called identifiers. Identifiers can be short names (like x and y) or more descriptive names (age, sum, totalVolume). …

  9. Identifier - Field Guide

    For a quick recap, in C#: Identifiers must start with an underscore (_) or a letter. This is because the compiler needs a way of distinguishing identifiers from numbers entered directly into the code. An …

  10. Identifier - Glossary | MDN

    Jul 11, 2025 · An identifier is a sequence of characters in the code that identifies a variable, function, or property. In most languages, identifiers are case-sensitive and not quoted.