diff options
| author | Charles.Forsyth <devnull@localhost> | 2006-12-22 20:52:35 +0000 |
|---|---|---|
| committer | Charles.Forsyth <devnull@localhost> | 2006-12-22 20:52:35 +0000 |
| commit | 46439007cf417cbd9ac8049bb4122c890097a0fa (patch) | |
| tree | 6fdb25e5f3a2b6d5657eb23b35774b631d4d97e4 /man/2/sys-werrstr | |
| parent | 37da2899f40661e3e9631e497da8dc59b971cbd0 (diff) | |
20060303-partial
Diffstat (limited to 'man/2/sys-werrstr')
| -rw-r--r-- | man/2/sys-werrstr | 26 |
1 files changed, 26 insertions, 0 deletions
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) |