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-rw-r--r--manual/ctype.texi6
1 files changed, 3 insertions, 3 deletions
diff --git a/manual/ctype.texi b/manual/ctype.texi
index b51e881..b275a54 100644
--- a/manual/ctype.texi
+++ b/manual/ctype.texi
@@ -162,7 +162,7 @@ vertical tab
@comment ISO
@deftypefun int isblank (int @var{c})
Returns true if @var{c} is a blank character; that is, a space or a tab.
-This function has been added in @w{ISO C99}.
+This function was originally a GNU extension, but was added in @w{ISO C99}.
@end deftypefun
@cindex graphic character
@@ -598,8 +598,8 @@ characters as well.
@comment ISO
@deftypefun int iswblank (wint_t @var{wc})
Returns true if @var{wc} is a blank character; that is, a space or a tab.
-This function has been added in @w{ISO C99}. It is declared in
-@file{wchar.h}.
+This function was originally a GNU extension, but was added in @w{ISO C99}.
+It is declared in @file{wchar.h}.
@end deftypefun
@node Using Wide Char Classes, Wide Character Case Conversion, Classification of Wide Characters, Character Handling