C++ allows many naming styles

camelCase

• Description: The first word starts with a lowercase letter; each following word begins with an uppercase letter.
• Usage: Common for variable names and function names in many C++ codebases.
• Example: myVariableName, processInputData()

PascalCase

• Description: Every word, including the first one, starts with an uppercase letter.
• Usage: Often used for class names, type names, or namespaces.
• Example: MyClass, FileManager, MathUtilities

snake_case

• Description: All characters are lowercase; words are separated by underscores.
• Usage: Popular in C, some C++ libraries, and Unix-style code.
• Example: my_variable_name, read_from_file()

SCREAMING_SNAKE_CASE

• Description: Like snake_case, but all letters are uppercase.
• Usage: Common for constants, macros, and global configuration values.
• Example: BUFFER_SIZE, MAX_CONNECTIONS

kebab-case (rare in C++)

• Description: Words are lowercase and separated by hyphens.
• Usage: Not valid for C++ identifiers; appears mostly in filenames, documentation, or some configuration formats.
• Example: config-file-path, user-profile-data.json

lowercase (flat lowercase name)

• Description: All lowercase letters, no separators.
• Usage: Often used for short utility variables, iterators, and simple functions.
• Example: i, count, open

UPPERCASE (flat uppercase name)

• Description: All uppercase letters, no separators.
• Usage: Rare in code; occasionally used for macros or constants.
• Example: DEBUG

Hungarian notation (mixed, historically common)

• Description: Prefix encodes type or meaning; name encodes identity.
• Usage: Common in older Windows/C++ codebases; less popular today.
• Example: strName, pItem, iCount (str = string, p = pointer, i = int)

StudlyCaps / camelCaseWithoutMeaningfulRules (informal)

• Description: Random capitalization pattern; not recommended.
• Example: DoSomethingCool, myVaRiAbLe