widemul

widemul(x, y)

Multiply x and y, giving the result as a larger type.

Examples

Multiply two integers and widen the result:
```
julia> widemul(10, 20)
200
```
This example multiplies the integers 10 and 20 and widens the result to a larger type.

Multiply two large numbers and handle overflow:

julia> a = big(10)^50;
julia> b = big(2)^50;
julia> widemul(a, b)
100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

It can handle large numbers and correctly widens the result to accommodate the multiplication.

Multiply a negative number with a positive number:
```
julia> widemul(-5, 10)
-50
```
It correctly handles multiplication between negative and positive numbers.

Common mistake example:

julia> widemul(3.14, 2.71)
ERROR: MethodError: no method matching widemul(::Float64, ::Float64)

In this example, widemul does not support floating-point numbers. It only works with integers and their wider types. Make sure to provide integer arguments to widemul to avoid such errors.

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widemul

Examples

See Also

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