Features of C common to most programming languages

• base data types - integers, characters, floating-point

• conditions (though evaluated as integers, 0 is false, anything other is true)

• expressions with type promotion (integers and floating-point)

• control flow - if/else, switch; for, while, do...while loops

• aggregate data-structures; one- and multi-dimensional arrays, structures

• functions, accepting parameters, return value and pointer parameters