NAME

       avr_errno - <errno.h>: System Errors

SYNOPSIS

   Macros
       #define EDOM   33
       #define ERANGE   34

   Variables
       int errno

Detailed Description

       #include <errno.h>

       Some functions in the library set the global variable errno when an error occurs. The file, <errno.h>,
       provides symbolic names for various error codes.

Macro Definition Documentation

   #define EDOM   33
       Domain error.

   #define ERANGE   34
       Range error.

Variable Documentation

   int errno [extern]
       Error code for last error encountered by library. The variable errno holds the last error code
       encountered by a library function. This variable must be cleared by the user prior to calling a library
       function.

       Warning
           The errno 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 error and when the task examines errno. If
           another task changes errno during this time, the result will be incorrect for the interrupted task.

Author

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Version 2.0.0                               Fri Nov 24 2023 23:59:10                             avr_errno(3avr)