From c4da23f1f5e6e7257bd6354860f2670329c50c16 Mon Sep 17 00:00:00 2001
From: Jonas 'Sortie' Termansen <sortie@maxsi.org>
Date: Sun, 24 Mar 2013 00:41:35 +0100
Subject: [PATCH] Add wcscmp(3).

---
 libc/Makefile        |  1 +
 libc/include/wchar.h |  2 +-
 libc/wcscmp.cpp      | 39 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 41 insertions(+), 1 deletion(-)
 create mode 100644 libc/wcscmp.cpp

diff --git a/libc/Makefile b/libc/Makefile
index e8b7db71..a44a1419 100644
--- a/libc/Makefile
+++ b/libc/Makefile
@@ -133,6 +133,7 @@ wcrtomb.o \
 wcscat.o \
 wcschrnul.o \
 wcschr.o \
+wcscmp.o \
 wcscpy.o \
 wcslen.o \
 wctomb.o \
diff --git a/libc/include/wchar.h b/libc/include/wchar.h
index faa6262b..a9c4e6d1 100644
--- a/libc/include/wchar.h
+++ b/libc/include/wchar.h
@@ -66,6 +66,7 @@ size_t mbrtowc(wchar_t* restrict, const char* restrict, size_t, mbstate_t* restr
 wchar_t* wcscat(wchar_t* restrict, const wchar_t* restrict);
 wchar_t* wcschr(const wchar_t*, wchar_t);
 wchar_t* wcschrnul(const wchar_t*, wchar_t);
+int wcscmp(const wchar_t*, const wchar_t*);
 wchar_t* wcscpy(wchar_t* restrict, const wchar_t* restrict);
 size_t wcslen(const wchar_t*);
 
@@ -87,7 +88,6 @@ int vswprintf(wchar_t* restrict, size_t, const wchar_t* restrict, va_list);
 int vswscanf(const wchar_t* restrict, const wchar_t* restrict, va_list);
 int vwprintf(const wchar_t* restrict, va_list);
 int vwscanf(const wchar_t* restrict, va_list);
-int wcscmp(const wchar_t*, const wchar_t*);
 int wcscoll(const wchar_t*, const wchar_t*);
 int wcsncmp(const wchar_t*, const wchar_t*, size_t);
 int wcswidth(const wchar_t*, size_t);
diff --git a/libc/wcscmp.cpp b/libc/wcscmp.cpp
new file mode 100644
index 00000000..694f4866
--- /dev/null
+++ b/libc/wcscmp.cpp
@@ -0,0 +1,39 @@
+/*******************************************************************************
+
+    Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2013.
+
+    This file is part of the Sortix C Library.
+
+    The Sortix C Library is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    The Sortix C Library is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
+
+    wcscmp.cpp
+    Compares two strings.
+
+*******************************************************************************/
+
+#include <wchar.h>
+
+extern "C" int wcscmp(const wchar_t* a, const wchar_t* b)
+{
+	while ( true )
+	{
+		wchar_t ac = *a++, bc = *b++;
+		if ( ac == L'\0' && bc == L'\0' )
+			return 0;
+		if ( ac < bc )
+			return -1;
+		if ( ac > bc )
+			return 1;
+	}
+}