Standard Header Files

standard header files contains Prototypes of the library functions. For example, math.h contains prototypes for mathematical operations. some standard header files are: stdio.h printf, scanf, getchar, putchat etc. stdlib.h utility functions; number conversions, memory allocation, exit and system , Quick Sort float.h system limits for floating point types math.h mathematical functions string.h string functions assert.h assertions ctype.h character class tests time.h date and time functions limits.h system limits for integral types setjmp.h non-local jumps signal.h signals and error handling stdarg.h variable length parameter lists Use the #include (preprocessor directive) and give angle brackets around the name of the file to include these standard header files in your program