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-.\" Copyright (C) 2023 Alejandro Colomar <alx@kernel.org>
-.\"
-.\" SPDX-License-Identifier: Linux-man-pages-copyleft
-.\"
-.TH roundup 3 2023-10-31 "Linux man-pages 6.7"
-.SH NAME
-roundup \- round up in steps
-.SH LIBRARY
-Standard C library
-.RI ( libc )
-.SH SYNOPSIS
-.nf
-.B #include <sys/param.h>
-.P
-.BI roundup( x ", " step );
-.fi
-.SH DESCRIPTION
-This macro rounds
-.I x
-to the nearest multiple of
-.I step
-that is not less than
-.IR x .
-.P
-It is typically used for
-rounding up a pointer to align it or
-increasing a buffer to be allocated.
-.P
-This API is not designed to be generic,
-and doesn't work in some cases
-that are not important for the typical use cases described above.
-See CAVEATS.
-.SH RETURN VALUE
-This macro returns the rounded value.
-.SH STANDARDS
-None.
-.SH CAVEATS
-The arguments may be evaluated more than once.
-.P
-.I x
-should be nonnegative,
-and
-.I step
-should be positive.
-.P
-If
-.I x + step
-would overflow or wrap around,
-the behavior is undefined.
-.SH SEE ALSO
-.BR ceil (3),
-.BR floor (3),
-.BR lrint (3),
-.BR rint (3),
-.BR lround (3),
-.BR round (3)