Vec.opOpAssign
- Vec!(T, N) opOpAssign(Vec!(U, N) oth)
 - Vec!(T, N) opOpAssign(U val)
struct Vec(T, size_t N)
ref 
opOpAssign
 if (
(op == "+" || 
op == "-"
 || 
op == "*"
 || 
op == "/"
 || 
(op == "%" && 
__traits(isIntegral, U)
) ) && 
 isNumeric!U
)
  
 
		gfx math vec Vec 
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Perform a scalar assignment operation on the vector.