diff --git a/libc/string/strcasecmp.cpp b/libc/string/strcasecmp.cpp
index bfc3bda5..8fa76ed7 100644
--- a/libc/string/strcasecmp.cpp
+++ b/libc/string/strcasecmp.cpp
@@ -1,6 +1,6 @@
 /*******************************************************************************
 
-    Copyright(C) Jonas 'Sortie' Termansen 2011, 2012.
+    Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2014.
 
     This file is part of the Sortix C Library.
 
@@ -27,9 +27,10 @@
 
 extern "C" int strcasecmp(const char* a, const char* b)
 {
-	while ( true )
+	for ( size_t i = 0; true; i++ )
 	{
-		char ac = tolower(*a++), bc = tolower(*b++);
+		unsigned char ac = (unsigned char) tolower((unsigned char) a[i]);
+		unsigned char bc = (unsigned char) tolower((unsigned char) b[i]);
 		if ( ac == '\0' && bc == '\0' )
 			return 0;
 		if ( ac < bc )
diff --git a/libc/string/strcmp.cpp b/libc/string/strcmp.cpp
index 6809a6a9..7b14353f 100644
--- a/libc/string/strcmp.cpp
+++ b/libc/string/strcmp.cpp
@@ -1,6 +1,6 @@
 /*******************************************************************************
 
-    Copyright(C) Jonas 'Sortie' Termansen 2011, 2012.
+    Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2014.
 
     This file is part of the Sortix C Library.
 
@@ -26,9 +26,10 @@
 
 extern "C" int strcmp(const char* a, const char* b)
 {
-	while ( true )
+	for ( size_t i = 0; true; i++ )
 	{
-		char ac = *a++, bc = *b++;
+		unsigned char ac = (unsigned char) a[i];
+		unsigned char bc = (unsigned char) b[i];
 		if ( ac == '\0' && bc == '\0' )
 			return 0;
 		if ( ac < bc )
diff --git a/libc/string/strncasecmp.cpp b/libc/string/strncasecmp.cpp
index 265881b5..50674e4f 100644
--- a/libc/string/strncasecmp.cpp
+++ b/libc/string/strncasecmp.cpp
@@ -1,6 +1,6 @@
 /*******************************************************************************
 
-    Copyright(C) Jonas 'Sortie' Termansen 2011, 2012.
+    Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2014.
 
     This file is part of the Sortix C Library.
 
@@ -25,11 +25,12 @@
 #include <string.h>
 #include <ctype.h>
 
-extern "C" int strncasecmp(const char* a, const char* b, size_t maxcount)
+extern "C" int strncasecmp(const char* a, const char* b, size_t max_count)
 {
-	while ( maxcount-- )
+	for ( size_t i = 0; i < max_count; i++ )
 	{
-		char ac = tolower(*a++), bc = tolower(*b++);
+		unsigned char ac = (unsigned char) tolower((unsigned char) a[i]);
+		unsigned char bc = (unsigned char) tolower((unsigned char) b[i]);
 		if ( ac == '\0' && bc == '\0' )
 			return 0;
 		if ( ac < bc )
diff --git a/libc/string/strncmp.cpp b/libc/string/strncmp.cpp
index 5e1020ff..429ee066 100644
--- a/libc/string/strncmp.cpp
+++ b/libc/string/strncmp.cpp
@@ -1,6 +1,6 @@
 /*******************************************************************************
 
-    Copyright(C) Jonas 'Sortie' Termansen 2011, 2012.
+    Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2014.
 
     This file is part of the Sortix C Library.
 
@@ -24,11 +24,12 @@
 
 #include <string.h>
 
-extern "C" int strncmp(const char* a, const char* b, size_t maxcount)
+extern "C" int strncmp(const char* a, const char* b, size_t max_count)
 {
-	while ( maxcount-- )
+	for ( size_t i = 0; i < max_count; i++ )
 	{
-		char ac = *a++, bc = *b++;
+		unsigned char ac = (unsigned char) a[i];
+		unsigned char bc = (unsigned char) b[i];
 		if ( ac == '\0' && bc == '\0' )
 			return 0;
 		if ( ac < bc )
diff --git a/libc/wchar/wcscasecmp.cpp b/libc/wchar/wcscasecmp.cpp
index ad354107..d55344d1 100644
--- a/libc/wchar/wcscasecmp.cpp
+++ b/libc/wchar/wcscasecmp.cpp
@@ -28,9 +28,10 @@
 extern "C"
 int wcscasecmp(const wchar_t* a, const wchar_t* b)
 {
-	while ( true )
+	for ( size_t i = 0; true; i++ )
 	{
-		wchar_t ac = towlower(*a++), bc = towlower(*b++);
+		wint_t ac = towlower((wint_t) a[i]);
+		wint_t bc = towlower((wint_t) b[i]);
 		if ( ac == L'\0' && bc == L'\0' )
 			return 0;
 		if ( ac < bc )
diff --git a/libc/wchar/wcscmp.cpp b/libc/wchar/wcscmp.cpp
index ae0a02cf..9bd2d56d 100644
--- a/libc/wchar/wcscmp.cpp
+++ b/libc/wchar/wcscmp.cpp
@@ -1,6 +1,6 @@
 /*******************************************************************************
 
-    Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2013.
+    Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2013, 2014.
 
     This file is part of the Sortix C Library.
 
@@ -26,9 +26,10 @@
 
 extern "C" int wcscmp(const wchar_t* a, const wchar_t* b)
 {
-	while ( true )
+	for ( size_t i = 0; true; i++ )
 	{
-		wchar_t ac = *a++, bc = *b++;
+		wint_t ac = (wint_t) a[i];
+		wint_t bc = (wint_t) b[i];
 		if ( ac == L'\0' && bc == L'\0' )
 			return 0;
 		if ( ac < bc )
diff --git a/libc/wchar/wcsncasecmp.cpp b/libc/wchar/wcsncasecmp.cpp
index 8ac3ce07..24d27c25 100644
--- a/libc/wchar/wcsncasecmp.cpp
+++ b/libc/wchar/wcsncasecmp.cpp
@@ -26,11 +26,12 @@
 #include <wctype.h>
 
 extern "C"
-int wcsncasecmp(const wchar_t* a, const wchar_t* b, size_t maxcount)
+int wcsncasecmp(const wchar_t* a, const wchar_t* b, size_t max_count)
 {
-	while ( maxcount-- )
+	for ( size_t i = 0; i < max_count; i++ )
 	{
-		wchar_t ac = towlower(*a++), bc = towlower(*b++);
+		wint_t ac = towlower((wint_t) a[i]);
+		wint_t bc = towlower((wint_t) b[i]);
 		if ( ac == L'\0' && bc == L'\0' )
 			return 0;
 		if ( ac < bc )
diff --git a/libc/wchar/wcsncmp.cpp b/libc/wchar/wcsncmp.cpp
index 36100b20..a57a3720 100644
--- a/libc/wchar/wcsncmp.cpp
+++ b/libc/wchar/wcsncmp.cpp
@@ -1,6 +1,6 @@
 /*******************************************************************************
 
-    Copyright(C) Jonas 'Sortie' Termansen 2013.
+    Copyright(C) Jonas 'Sortie' Termansen 2013, 2014.
 
     This file is part of the Sortix C Library.
 
@@ -24,15 +24,17 @@
 
 #include <wchar.h>
 
-extern "C" int wcsncmp(const wchar_t* a, const wchar_t* b, size_t n)
+extern "C" int wcsncmp(const wchar_t* a, const wchar_t* b, size_t max_count)
 {
-	for ( size_t i = 0; i < n; i++ )
+	for ( size_t i = 0; i < max_count; i++ )
 	{
-		if ( a[i] == L'\0' && b[i] == L'\0' )
+		wint_t ac = (wint_t) a[i];
+		wint_t bc = (wint_t) b[i];
+		if ( ac == L'\0' && bc == L'\0' )
 			return 0;
-		if ( a[i] < b[i] )
+		if ( ac < bc )
 			return -1;
-		if ( a[i] > b[i] )
+		if ( ac > bc )
 			return 1;
 	}
 	return 0;