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Added `modInPlace` to ‘Arithmetic.swift’

This commit is contained in:
Vincent Esche 2019-09-24 13:46:11 +02:00
parent 2919646dd5
commit 315096f78b
1 changed files with 32 additions and 0 deletions
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32
Sources/Surge/Arithmetic/Arithmetic.swift
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@ -454,6 +454,38 @@ public func .% <L: UnsafeMemoryAccessible, R: UnsafeMemoryAccessible>(lhs: L, rh
return mod(lhs, rhs)
}
// MARK: - Element-wise Modulo: In Place
/// - Warning: does not support memory stride (assumes stride is 1).
public func modInPlace<L: UnsafeMutableMemoryAccessible, R: UnsafeMemoryAccessible>(_ lhs: inout L, _ rhs: R) where L.Element == Float, R.Element == Float {
precondition(lhs.count == rhs.count, "Collections must have the same size")
var elementCount: Int32 = numericCast(lhs.count)
withUnsafeMutableMemory(&lhs) { lm in
withUnsafeMemory(rhs) { rm in
vvfmodf(lm.pointer, lm.pointer, rm.pointer, &elementCount)
}
}
}
/// - Warning: does not support memory stride (assumes stride is 1).
public func modInPlace<L: UnsafeMutableMemoryAccessible, R: UnsafeMemoryAccessible>(_ lhs: inout L, _ rhs: R) where L.Element == Double, R.Element == Double {
precondition(lhs.count == rhs.count, "Collections must have the same size")
var elementCount: Int32 = numericCast(lhs.count)
withUnsafeMutableMemory(&lhs) { lm in
withUnsafeMemory(rhs) { rm in
vvfmod(lm.pointer, lm.pointer, rm.pointer, &elementCount)
}
}
}
public func .%= <L: UnsafeMutableMemoryAccessible, R: UnsafeMemoryAccessible>(lhs: inout L, rhs: R) where L.Element == Float, R.Element == Float {
return modInPlace(&lhs, rhs)
}
public func .%= <L: UnsafeMutableMemoryAccessible, R: UnsafeMemoryAccessible>(lhs: inout L, rhs: R) where L.Element == Double, R.Element == Double {
return modInPlace(&lhs, rhs)
}
// MARK: - Remainder
/// Elemen-wise remainder.