C reference

FAQ Language Preprocessor Keywords Operator precedence Escape sequences ASCII chart Headers Type support Dynamic memory management

Error handling Program utilities Date and time utilities Strings library Null-terminated byte strings Null-terminated multibyte strings Null-terminated wide strings Algorithms Input/output support

Numerics Mathematical functions Floating-point environment Pseudo-random number generation Complex number arithmetic Type-generic math Localization support Atomic operations library (since C11) Thread support library (since C11)