Modern Math IPowChecked

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IPowChecked

Raises an integer to a power, returning an empty Optional if the result overflows.

Syntax

IPowChecked( base, exp )

Examples

#import "std/numeric"
using numeric

'' The overflow-safe form: an Optional, empty when the result does not
'' fit rather than wrapping silently
dim as int64 b = 2, e = 10
var r = IPowChecked( b, e )

print r.HasValue( )          '' true
print r.Value( )             '' 1024

dim as int64 big = 1000000
var over = IPowChecked( big, big )
print over.HasValue( )       '' false -- it would have overflowed

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Library: Math Library
Category: Math Library
Documented under: Nothing Becomes A Keyword