Commonly Used Header Files

header file Contains function prototypes for

<stdio.h> the standard input/output library functions

& information used by them

<math.h> the math library functions

<stdlib.h> the conversion of number to text, text to number, memory allocation, random numbers and other utility functions

<time.h> manipulating time and date

<ctype.h> functions that test characters for certain properties and that can convert case

others see page 159 of text

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