[PATCH] toupper.3: ATTRIBUTES: Note functions that are thread safe with exceptions
From: Peng Haitao <hidden>
Date: 2013-12-24 02:16:07
Subsystem:
the rest · Maintainer:
Linus Torvalds
The functions toupper() and tolower() are thread safe with exceptions. Signed-off-by: Peng Haitao <redacted> --- man3/toupper.3 | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/man3/toupper.3 b/man3/toupper.3
index 7a9ba2c..f592495 100644
--- a/man3/toupper.3
+++ b/man3/toupper.3@@ -24,7 +24,7 @@ .\" .\" Modified Sat Jul 24 17:45:39 1993 by Rik Faith (faith-+5Oa3zvhR2o3uPMLIKxrzw@public.gmane.org) .\" Modified 2000-02-13 by Nicol�s Lichtmaier <nick-8fiUuRrzOP0dnm+yROfE0A@public.gmane.org> -.TH TOUPPER 3 1993-04-04 "GNU" "Linux Programmer's Manual" +.TH TOUPPER 3 2013-12-24 "GNU" "Linux Programmer's Manual" .SH NAME toupper, tolower \- convert letter to upper or lower case .SH SYNOPSIS
@@ -58,6 +58,17 @@ is undefined. The value returned is that of the converted letter, or .I c if the conversion was not possible. +.SH ATTRIBUTES +.SS Multithreading (see pthreads(7)) +The +.BR toupper () +and +.BR tolower () +functions are thread-safe with exceptions. +These functions can be safely used in multithreaded applications, +as long as +.BR setlocale (3) +is not called to change the locale. .SH CONFORMING TO C89, C99, 4.3BSD. .SH BUGS
--
1.8.3.1
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