muldiv man page on Plan9
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MULDIV(2)							     MULDIV(2)

NAME
       muldiv, umuldiv - high-precision multiplication and division

SYNOPSIS
       #include <u.h>
       #include <libc.h>

       long muldiv(long a, long b, long c)

       ulong umuldiv(ulong a, ulong b, ulong c)

DESCRIPTION
       Muldiv  returns	a*b/c,	using a vlong to hold the intermediate result.
       Umuldiv is the equivalent for unsigned integers.	 They can be  used  to
       scale  integer  values without worry about overflowing the intermediate
       result.

       On some architectures, these routines can generate a trap if the	 final
       result  does  not  fit in a long or ulong; on others they will silently
       truncate.

								     MULDIV(2)
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