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Function core.checkedint.negs
Negate an integer.
int negs
(
int x,
ref bool overflow
);
long negs
(
long x,
ref bool overflow
);
Parameters
Name | Description |
---|---|
x | operand |
overflow | set if x cannot be negated, is not affected otherwise |
Returns
the negation of x
Example
bool overflow;
writeln(negs(0, overflow)); // -0
assert(!overflow);
writeln(negs(1234, overflow)); // -1234
assert(!overflow);
writeln(negs(-5678, overflow)); // 5678
assert(!overflow);
writeln(negs(int .min, overflow)); // -int.min
assert(overflow);
writeln(negs(0, overflow)); // -0
assert(overflow); // sticky
Example
bool overflow;
writeln(negs(0L, overflow)); // -0
assert(!overflow);
writeln(negs(1234L, overflow)); // -1234
assert(!overflow);
writeln(negs(-5678L, overflow)); // 5678
assert(!overflow);
writeln(negs(long .min, overflow)); // -long.min
assert(overflow);
writeln(negs(0L, overflow)); // -0
assert(overflow); // sticky
Authors
Walter Bright
License
Copyright © 1999-2022 by the D Language Foundation | Page generated by ddox.