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[libc] Add wcslen() function

Signed-off-by: Michael Brown <mcb30@ipxe.org>
tags/v1.20.1
Michael Brown 12 years ago
parent
commit
51b65d5f9c
2 changed files with 45 additions and 0 deletions
  1. 43
    0
      src/core/wchar.c
  2. 2
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      src/include/wchar.h

+ 43
- 0
src/core/wchar.c View File

@@ -0,0 +1,43 @@
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+/*
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+ * Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>.
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+ *
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+ * This program is free software; you can redistribute it and/or
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+ * modify it under the terms of the GNU General Public License as
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+ * published by the Free Software Foundation; either version 2 of the
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+ * License, or any later version.
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+ *
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+ * This program is distributed in the hope that it will be useful, but
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+ * WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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+ * General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program; if not, write to the Free Software
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+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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+ * 02110-1301, USA.
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+ */
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+
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+FILE_LICENCE ( GPL2_OR_LATER );
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+
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+/**
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+ * @file
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+ *
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+ * Wide-character strings
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+ *
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+ */
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+
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+#include <wchar.h>
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+
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+/**
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+ * Calculate length of wide-character string
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+ *
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+ * @v string		String
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+ * @ret len		Length (excluding terminating NUL)
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+ */
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+size_t wcslen ( const wchar_t *string ) {
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+	size_t len = 0;
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+
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+	while ( *(string++) )
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+		len++;
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+	return len;
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+}

+ 2
- 0
src/include/wchar.h View File

@@ -24,4 +24,6 @@ size_t wcrtomb ( char *buf, wchar_t wc, mbstate_t *ps __unused ) {
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 	return 1;
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 }
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+extern size_t wcslen ( const wchar_t *string );
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+
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 #endif /* WCHAR_H */

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