Essential C Language library reference with need-to-know headers and functions, the fundamental units of code that provide essential functionality and ensure portability and efficiency across different systems. Developed for support of beginners who are learning and for experts as a handy quick reference. Developed using our famously concise QuickStudy format, author, editor, and designer fit these core elements in six laminated pages. Author Robin Nixon worked with computers in the 80s and started developing websites in the 90s becoming an expert and writing over 40 programming books and over 500 articles for top computer magazines. With his expertise in the field, and writing to his audience in our succinct and organized QuickStudy format, this reference has more quality actionable facts per page than any book or website. Designed for quick access to the facts you need, our inexpensive tools for programmers have been best sellers for over 10 years making this an easy add to your programming toolbox. As our programming reference guides climb in sales to best-selling status, it is clear that print is not dead and this handy desktop tool does the trick.   6 page laminated reference Includes:     Statements & Comments  Key Features  Header Files  Including Libraries   Examples with Outputs assert.h: Debugging with Runtime Assertions complex.h: Complex Number Arithmetic  ctype.h: Character Classification & Conversion  errno.h: Error-Reporting Macros  fenv.h: Floating-Point Environment Control float.h: Floating-Point Limits & Precision inttypes.h: Integer Types with Format Specifiers iso646.h: Alternative Operator Spellings  limits.h: Data Type Limits & Constraints locale.h: Localization & Cultural Settings math.h: Mathematical Functions  setjmp.h: Saving & Restoring Execution State signal.h: Signal Handling  stdalign.h: Memory Alignment  stdarg.h: Handling Variable Argument Lists  stdatomic.h: Atomic Operations for Concurrency  stdbfloat.h: Binary Floating-Point Support  stdbit.h: Functions & Macros for Bit Manipulation  stdbool.h: Boolean Type & Values stdckdint.h: Checked Integer Arithmetic stddef.h: Common Type Definitions stdint.h: Fixed-Width Integer Types stdio.h: I/O Operations stdlib.h: Memory Allocation, Random Numbers & Process Control stdnoreturn.h: Functions That Do Not Return string.h: String & Memory Manipulatio tgmath.h: Type-Generic Macros for Math Functions threads.h: Threading & Synchronization time.h: Time & Date Utilities uchar.h: Unicode Character Support wchar.h: Wide-Character Operations wctype.h: Wide-Character Classification & Conversion Further Reading