From d0ae3caca5828675335d3b19ab5dd987e7369b23 Mon Sep 17 00:00:00 2001
From: Tim Blechmann <timblech@users.sourceforge.net>
Date: Wed, 14 Jul 2004 16:21:44 +0000
Subject: This commit was generated by cvs2svn to compensate for changes in
 r1857, which included commits to RCS files with non-trunk default branches.

svn path=/trunk/externals/tb/; revision=1858
---
 sc4pd/headers/server/SC_Str4.h | 103 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 103 insertions(+)
 create mode 100644 sc4pd/headers/server/SC_Str4.h

(limited to 'sc4pd/headers/server/SC_Str4.h')

diff --git a/sc4pd/headers/server/SC_Str4.h b/sc4pd/headers/server/SC_Str4.h
new file mode 100644
index 0000000..306b823
--- /dev/null
+++ b/sc4pd/headers/server/SC_Str4.h
@@ -0,0 +1,103 @@
+/*
+	SuperCollider real time audio synthesis system
+    Copyright (c) 2002 James McCartney. All rights reserved.
+	http://www.audiosynth.com
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+/*  a 4 byte aligned and zero padded string allows faster string operations. */
+
+#ifndef _SC_Str4_
+#define _SC_Str4_
+
+#include "Hash.h"
+#include <stdio.h>
+#include <limits.h>
+
+#ifndef _LASTCHAR_
+#define _LASTCHAR_
+#if BYTE_ORDER == LITTLE_ENDIAN
+const int32 kLASTCHAR = 0xFF000000;
+#else
+const int32 kLASTCHAR = 0x000000FF;
+#endif
+#endif
+
+
+void str4cpy(int32 *dst, const char *src);
+void mem4cpy(int32 *dst, const char *src, int charlen);
+
+// returns the number of pad bytes to add to a string of a given length
+inline int str4padbytes(int charlen)
+{
+    return 4 - (charlen & 3);
+}
+
+// converts length in bytes to length in words
+inline int str4len(int charlen)
+{
+	return (charlen + 4) >> 2;
+}
+
+// returns length in words of a char *
+inline int str4len(const char *src)
+{
+    const char *src0 = src;
+    while (*src) { src++; }
+    return str4len(src - src0);
+}
+
+// returns length in words of a int32 *
+inline int str4len(const int32 *src)
+{
+    const int32 *src0 = src;
+    while (*src++ & kLASTCHAR) {}
+    int wordlen = src - src0;
+    return wordlen;
+}
+
+// returns length in words of a int32 *
+inline bool str4eq(const int32 *a, const int32 *b)
+{
+	while(true) {
+		if (*a != *b) return false;
+		if ((*a & kLASTCHAR) == 0) return true;
+		a++; b++;
+	}
+}
+
+// copy an int32 *
+inline void str4cpy(int32 *dst, const int32 *src)
+{
+	int32 c;
+	do {
+		*dst++ = c = *src++;
+	} while (c & kLASTCHAR);
+}
+
+inline int sc_atoi(char *string)
+{
+	int value = 0;
+	if (*string == 0) return -1;
+	uint32 c;
+	while ((c = *string++ - '0') <= 9) {
+		value = value * 10 + c;
+	}
+	return value;
+}
+
+
+#endif
-- 
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