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Function core.checkedint.subs
Subtract two signed integers, checking for overflow.
The overflow is sticky, meaning a sequence of operations can
be done and overflow need only be checked at the end.
Prototypes
int subs( int x, int y, bool overflow ) pure nothrow @nogc @safe; long subs( long x, long y, bool overflow ) pure nothrow @nogc @safe;
Parameters
| Name | Description |
|---|---|
| x | left operand |
| y | right operand |
| overflow | set if an overflow occurs, is not affected otherwise |
Returns
the sum
Authors
Walter Bright