WithNaN.hookOpOpAssign

void hookOpOpAssign(string x, L, R)(ref L lhs, R rhs)

Defines hooks for binary operators `+=`, `-=`, `*=`, `/=`, `%=`, `^^=`, `&=`, `|=`, `^=`, `<<=`, `>>=`, and `>>>=` for cases where a Checked object is the left-hand side operand. If lhs == WithNaN.defaultValue!Lhs, no action is carried. Otherwise, evaluates the operand. If evaluation does not overflow and fits in Lhs without loss of information or change of sign, sets lhs to the result. Otherwise, sets lhs to WithNaN.defaultValue!Lhs.

Parameters

`x`	The operator symbol (without the `=`)
`lhs`	The left-hand side operand (`Lhs` is the first argument to `Checked`)
`rhs`	The right-hand side operand

Returns

void