What are Floor Ceiling Absolute Value and Remainder Functions in Standard C Library

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What are Floor Ceiling Absolute Value and Remainder Functions in Standard C Library

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Prev PageNext PageWhat are Floor, Ceiling, Absolute Value and Remainder Functions in Standard C LibraryPosted onJuly 24, 2014byManishQuestion:What are Floor, Ceiling, Absolute Value and Remainder Functions in Standard C Library?

Notice thatfloor() function returns largest integral value not greater than its argument. ceil() function returns smallest integral value not less than its argument.fabs() returns absolute value of its argument and fmod() returns remainder of division of val1 by val2. Lets take examples of floor() and ceil() functions below

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User, enter value for floor evaluation…

/* lets evaluate ceiling of value */

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/* fp_ceil_fun.c — ceil() returns smallest integer not less */

/* fp_floor_fun.c — floor() returns largest integer not greater */

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User, enter value for ceiling evaluation…

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Answer:Standard C Library defines floor(), ceil(), fabs() and fmod() functions with return values and their arguments as type double because of greater range of double values over integer values. These are prototyped as below,

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