From 46439007cf417cbd9ac8049bb4122c890097a0fa Mon Sep 17 00:00:00 2001
From: "Charles.Forsyth" <devnull@localhost>
Date: Fri, 22 Dec 2006 20:52:35 +0000
Subject: 20060303-partial

---
 man/2/sys-werrstr | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 man/2/sys-werrstr

(limited to 'man/2/sys-werrstr')

diff --git a/man/2/sys-werrstr b/man/2/sys-werrstr
new file mode 100644
index 00000000..add8206d
--- /dev/null
+++ b/man/2/sys-werrstr
@@ -0,0 +1,26 @@
+.TH SYS-WERRSTR 2
+.SH NAME
+werrstr \- set the system error string
+.SH SYNOPSIS
+.EX
+include "sys.m";
+sys := load Sys Sys->PATH;
+
+werrstr(s: string): int;
+.EE
+.SH DESCRIPTION
+When a system call fails, it returns an error value (often -1)
+and records a string describing the error in a per-process location.
+The verb
+.B r
+in
+.IR sys-print (2)
+outputs the error string.
+.B Werrstr
+sets the process's error string to
+.IR s ,
+to allow a function in a module to mimic the error reporting
+interface of a system call.
+.SH SEE ALSO
+.IR sys-intro (2),
+.IR sys-print (2)
-- 
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