From 3f9c39c71d290cbe9e4a8f321658a6e00bec5338 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Sat, 19 Nov 2016 17:32:49 -0500
Subject: pe_impl.h: linkage: helper string functions are now static inlined
 functions.

---
 src/internal/pe_impl.h | 49 ++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 46 insertions(+), 3 deletions(-)

(limited to 'src/internal/pe_impl.h')

diff --git a/src/internal/pe_impl.h b/src/internal/pe_impl.h
index 43ec6ef..27c156d 100644
--- a/src/internal/pe_impl.h
+++ b/src/internal/pe_impl.h
@@ -1,3 +1,9 @@
+/*****************************************************************************/
+/*  pemagination: a (virtual) tour into portable bits and executable bytes   */
+/*  Copyright (C) 2013,2014,2015  Z. Gilboa                                  */
+/*  Released under GPLv2 and GPLv3; see COPYING.PEMAGINE.                    */
+/*****************************************************************************/
+
 #include <psxtypes/psxtypes.h>
 #include <pemagine/pemagine.h>
 
@@ -12,6 +18,43 @@ struct pe_block {
 	uint32_t	size;
 };
 
-int32_t		pe_impl_strlen_ansi(const char * str);
-int32_t		pe_impl_strlen_utf16(const wchar16_t * str);
-wchar16_t	pe_impl_utf16_char_to_lower(const wchar16_t c);
+
+static inline int32_t pe_impl_strlen_ansi(const char * str)
+{
+	const char * ch;
+	const char * upper_bound;
+
+	upper_bound = str + PE_STR_MAX_SYMBOL_LEN_ALLOWED;
+
+	for (ch=str; *ch && ch<upper_bound; )
+		ch++;
+
+	return (ch < upper_bound)
+		? ch - str
+		: -1;
+}
+
+
+static inline int32_t pe_impl_strlen_utf16(const wchar16_t * str)
+{
+	const wchar16_t * wch;
+	const wchar16_t * upper_bound;
+
+	upper_bound = str + PE_STR_MAX_SYMBOL_LEN_ALLOWED;
+
+	for (wch=str; *wch && wch<upper_bound; )
+		wch++;
+
+	if (wch < upper_bound)
+		return (wch - str) * sizeof(wchar16_t);
+	else
+		return -1;
+}
+
+
+static inline wchar16_t pe_impl_utf16_char_to_lower(const wchar16_t c)
+{
+	return ((c >= 'A') && (c <= 'Z'))
+		? c + 'a' - 'A'
+		: c;
+}
-- 
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