aboutsummaryrefslogtreecommitdiffstats
path: root/include/wchar.h
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--include/wchar.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/include/wchar.h b/include/wchar.h
index 755b583..2b757ca 100644
--- a/include/wchar.h
+++ b/include/wchar.h
@@ -658,6 +658,23 @@ wchar_t* wmemdup(const wchar_t*, size_t)
int wmemcmp(const wchar_t*, const wchar_t*, size_t)
__GCC_ONLY(__attribute__((warn_unused_result, pure)));
+#if defined(_SLIBC_SOURCE) && !defined(__PORTABLE)
+/**
+ * Compare two memory segments alphabetically in a case insensitive manner.
+ *
+ * This is a slibc extension added because it was useful
+ * in implementing slibc itself.
+ *
+ * @param a A negative value is returned if this is the lesser.
+ * @param b A positive value is returned if this is the lesser.
+ * @param size The size of the segments.
+ * @return Zero is returned if `a` and `b` are equal, otherwise,
+ * see the specifications for `a` and `b`.
+ */
+int wmemcasecmp(const wchar_t*, const wchar_t*, size_t)
+ __GCC_ONLY(__attribute__((warn_unused_result, pure)));
+#endif
+
/**
* Compare two strings alphabetically in a case sensitive manner.
*