Rewrite of BinaryInteger+Random.swift tests (#108) (#110).

oscbyspro · Oct 28, 2024 · f9a9acf · f9a9acf
1 parent 0f1737e
commit f9a9acf
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diff --git a/Sources/TestKit2/Utilities+Integers.swift b/Sources/TestKit2/Utilities+Integers.swift
@@ -9,6 +9,43 @@
 
 import CoreKit
 
+//*============================================================================*
+// MARK: * Utilities x Integers
+//*============================================================================*
+
+extension BinaryInteger {
+
+    //=------------------------------------------------------------------------=
+    // MARK: Initializers
+    //=------------------------------------------------------------------------=
+
+    @inlinable public static func minLikeSystemsInteger(size: IX) -> Optional<Self> {
+        guard !size.isZero, Count(size) <= Self.size else {
+            return nil
+        }
+
+        if  Self.isSigned {
+            return Self(repeating: Bit.one).up(Count(size - 1))
+
+        }   else {
+            return Self.zero
+        }
+    }
+
+    @inlinable public static func maxLikeSystemsInteger(size: IX) -> Optional<Self> {
+        guard !size.isZero, Count(size) <= Self.size else {
+            return nil
+        }
+
+        if  Self.isSigned {
+            return Self(repeating: Bit.one).up(Count(size - 1)).toggled()
+
+        }   else {
+            return Self(repeating: Bit.one).up(Count(((size)))).toggled()
+        }
+    }
+}
+
 //*============================================================================*
 // MARK: * Utilities x Integers x Edgy
 //*============================================================================*