1 files changed, 49 insertions, 0 deletions
diff --git a/gcc/d/dmd/root/port.d b/gcc/d/dmd/root/port.d
new file mode 100644
index 00000000000..1bafa207077
--- /dev/null
+++ b/gcc/d/dmd/root/port.d
@@ -0,0 +1,49 @@
+/**
+ * Portable routines for functions that have different implementations on different platforms.
+ *
+ * Copyright: Copyright (C) 1999-2021 by The D Language Foundation, All Rights Reserved
+ * Authors:   Walter Bright, http://www.digitalmars.com
+ * License:   $(LINK2 http://www.boost.org/LICENSE_1_0.txt, Boost License 1.0)
+ * Source:    $(LINK2 https://github.com/dlang/dmd/blob/master/src/dmd/root/port.d, root/_port.d)
+ * Documentation:  https://dlang.org/phobos/dmd_root_port.html
+ * Coverage:    https://codecov.io/gh/dlang/dmd/src/master/src/dmd/root/port.d
+ */
+
+module dmd.root.port;
+
+import core.stdc.stdint;
+
+nothrow @nogc:
+
+extern (C++) struct Port
+{
+    nothrow @nogc:
+
+    static int memicmp(scope const char* s1, scope const char* s2, size_t n) pure;
+
+    static char* strupr(char* s) pure;
+
+    static bool isFloat32LiteralOutOfRange(scope const(char)* s);
+
+    static bool isFloat64LiteralOutOfRange(scope const(char)* s);
+
+    // Little endian
+    static void writelongLE(uint value, scope void* buffer) pure;
+
+    // Little endian
+    static uint readlongLE(scope const void* buffer) pure;
+
+    // Big endian
+    static void writelongBE(uint value, scope void* buffer) pure;
+
+    // Big endian
+    static uint readlongBE(scope const void* buffer) pure;
+
+    // Little endian
+    static uint readwordLE(scope const void* buffer) pure;
+
+    // Big endian
+    static uint readwordBE(scope const void* buffer) pure;
+
+    static void valcpy(scope void *dst, uint64_t val, size_t size) pure;
+}