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

Round to integer, toward zero.

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