sys-werrstr man page on Inferno

sys-werrstr man page on Inferno

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SYS-WERRSTR(2)							SYS-WERRSTR(2)

NAME
       werrstr - set the system error string

SYNOPSIS
       include "sys.m";
       sys := load Sys Sys->PATH;

       werrstr(s: string): int;

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  r	in  sys-print(2)  outputs  the error string.  Werrstr sets the
       process's error string to s, to allow a function in a module  to	 mimic
       the error reporting interface of a system call.

SEE ALSO
       sys-intro(2), sys-print(2)

								SYS-WERRSTR(2)

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