.TH "<errno.h>: System Errors" 3avr "Wed Jun 4 2014" "Version 1.8.0svn" "avr-libc" \" -*- nroff -*-
.ad l
.nh
.SH NAME
<errno.h>: System Errors \- 
.SS "Macros"

.in +1c
.ti -1c
.RI "#define \fBEDOM\fP   33"
.br
.ti -1c
.RI "#define \fBERANGE\fP   34"
.br
.in -1c
.SH "Detailed Description"
.PP 

.PP
.nf
#include <errno\&.h>

.fi
.PP
.PP
Some functions in the library set the global variable \fCerrno\fP when an error occurs\&. The file, \fC<\fBerrno\&.h\fP>\fP, provides symbolic names for various error codes\&.
.PP
\fBWarning:\fP
.RS 4
The \fCerrno\fP global variable is not safe to use in a threaded or multi-task system\&. A race condition can occur if a task is interrupted between the call which sets \fCerror\fP and when the task examines \fCerrno\fP\&. If another task changes \fCerrno\fP during this time, the result will be incorrect for the interrupted task\&. 
.RE
.PP

.SH "Macro Definition Documentation"
.PP 
.SS "#define EDOM   33"
Domain error\&. 
.SS "#define ERANGE   34"
Range error\&. 
.SH "Author"
.PP 
Generated automatically by Doxygen for avr-libc from the source code\&.