The OpenD Programming Language

subu

Subtract two unsigned integers, checking for overflow (aka borrow).

The overflow is sticky, meaning a sequence of operations can be done and overflow need only be checked at the end.

  1. uint subu(uint x, uint y, bool overflow)
    nothrow @safe @nogc pure pragma(inline, true)
    uint
    subu
    (
    uint x
    ,
    uint y
    ,
    scope ref bool overflow
    )
  2. ulong subu(ulong x, ulong y, bool overflow)
  3. ucent subu(ucent x, ucent y, bool overflow)

Parameters

x uint

left operand

y uint

right operand

overflow bool

set if an overflow occurs, is not affected otherwise

Return Value

Type: uint

the difference

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