Work around memset taking a non-optional pointer on Linux

lorentey · lorentey · commit 6469433909b2 · 2021-12-21T17:50:21.000-08:00
diff --git a/Sources/System/Internals/Exports.swift b/Sources/System/Internals/Exports.swift
@@ -87,7 +87,8 @@ internal func system_memset(
   _ buffer: UnsafeMutableRawBufferPointer,
   to byte: UInt8
 ) {
-  memset(buffer.baseAddress, CInt(byte), buffer.count)
+  guard buffer.count > 0 else { return }
+  memset(buffer.baseAddress!, CInt(byte), buffer.count)
 }
 
 // Interop between String and platfrom string

Original file line number	Diff line number	Diff line change
`@@ -87,7 +87,8 @@ internal func system_memset(`
`87`	`87`	`_ buffer: UnsafeMutableRawBufferPointer,`
`88`	`88`	`to byte: UInt8`
`89`	`89`	`) {`
`90`		`- memset(buffer.baseAddress, CInt(byte), buffer.count)`
	`90`	`+ guard buffer.count > 0 else { return }`
	`91`	`+ memset(buffer.baseAddress!, CInt(byte), buffer.count)`
`91`	`92`	`}`
`92`	`93`
`93`	`94`	`// Interop between String and platfrom string`