1 files changed, 53 insertions, 0 deletions
diff --git a/tier0/tier0_strtools.cpp b/tier0/tier0_strtools.cpp
new file mode 100644
index 0000000..72bf6e5
--- /dev/null
+++ b/tier0/tier0_strtools.cpp
@@ -0,0 +1,53 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+#include "pch_tier0.h"
+#include "tier0_strtools.h"
+
+
+#define TOLOWERC( x )  (( ( x >= 'A' ) && ( x <= 'Z' ) )?( x + 32 ) : x )
+extern "C"
+int	V_tier0_stricmp(const char *s1, const char *s2 )
+{
+	uint8 const *pS1 = ( uint8 const * ) s1;
+	uint8 const *pS2 = ( uint8 const * ) s2;
+	for(;;)
+	{
+		int c1 = *( pS1++ );
+		int c2 = *( pS2++ );
+		if ( c1 == c2 )
+		{
+			if ( !c1 ) return 0;
+		}
+		else
+		{
+			if ( ! c2 )
+			{
+				return c1 - c2;
+			}
+			c1 = TOLOWERC( c1 );
+			c2 = TOLOWERC( c2 );
+			if ( c1 != c2 )
+			{
+				return c1 - c2;
+			}
+		}
+		c1 = *( pS1++ );
+		c2 = *( pS2++ );
+		if ( c1 == c2 )
+		{
+			if ( !c1 ) return 0;
+		}
+		else
+		{
+			if ( ! c2 )
+			{
+				return c1 - c2;
+			}
+			c1 = TOLOWERC( c1 );
+			c2 = TOLOWERC( c2 );
+			if ( c1 != c2 )
+			{
+				return c1 - c2;
+			}
+		}
+	}
+}