C reference


Language Basic concepts C Keywords Preprocessor Expressions Declaration Initialization Functions Statements Headers	Type support Program utilities Variadic functions Error handling Dynamic memory management Date and time utilities Strings library Null-terminated strings: byte − multibyte − wide Algorithms	Numerics Common mathematical functions Floating-point environment (C99) Pseudo-random number generation Complex number arithmetic (C99) Type-generic math (C99) Input/output support Localization support Atomic operations library (C11) Thread support library (C11)
Technical specifications Dynamic memory extensions (dynamic memory TR) Floating-point extensions, Part 1 (FP Ext 1 TS) Floating-point extensions, Part 4 (FP Ext 4 TS)
External Links − Non-ANSI/ISO Libraries − Index − Symbol Index