FLOOR(3) - Linux manual page online | Library functions

Largest integral value not greater than argument.

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This manual	Reference	Other manuals
floor(3)	referred by	abs(3) \| ceil(3) \| fabs(3) \| lrint(3) \| lround(3) \| rint(3) \| round(3) \| tlf(1) \| trunc(3)
floor(3)	refer to	attributes(7) \| ceil(3) \| feature_test_macros(7) \| lrint(3) \| rint(3) \| round(3) \| trunc(3)