add wcsset

Signed-off-by: Mattias Andrée <maandree@operamail.com>

2 files changed, 52 insertions, 0 deletions

diff --git a/include/wchar.h b/include/wchar.h
index 280bd06..ec93d1b 100644
--- a/include/wchar.h
+++ b/include/wchar.h
@@ -180,6 +180,19 @@ wchar_t* wmemcmove(wchar_t*, const wchar_t*, wchar_t, size_t);
 #endif
 
 /**
+ * Override a NUL character-terminated memory segment
+ * with a repeated wide character.
+ * 
+ * This is a slibc extension added for completeness.
+ * 
+ * @param   str  The beginning of the memory segment.
+ * @param   c    The wide character.
+ * @return       `str` is returned.
+ */
+wchar_t* wcsset(wchar_t*, wchar_t)
+  __GCC_ONLY(__attribute__((__returns_nonnull__, __nonnull__)));
+
+/**
  * Copy a memory segment to another, non-overlapping, segment,
  * stop when a NUL wide character is encountered.
  * 
diff --git a/src/wchar/wcsset.c b/src/wchar/wcsset.c
new file mode 100644
index 0000000..07639f4
--- /dev/null
+++ b/src/wchar/wcsset.c
@@ -0,0 +1,39 @@
+/**
+ * slibc — Yet another C library
+ * Copyright © 2015  Mattias Andrée (maandree@member.fsf.org)
+ * 
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+#include <wchar.h>
+
+
+
+/**
+ * Override a NUL character-terminated memory segment
+ * with a repeated wide character.
+ * 
+ * This is a slibc extension added for completeness.
+ * 
+ * @param   str  The beginning of the memory segment.
+ * @param   c    The wide character.
+ * @return       `str` is returned.
+ */
+wchar_t* wcsset(wchar_t* str, wchar_t c)
+{
+  wchar_t* r = str;
+  while (*str)
+    *str++ = c;
+  return r;
+}
+