errno

Synopsis

(errno)

Parameters

Description

This procedure returns the current value of errno as an exact integer.

Side Effects

Return Value

The current value of errno is returned.

Example

> (errno)
0
> (define p (open-input-file "unknown"))

ERROR!
 message   : cannot open file
 irritant  : #<primitive-procedure internal-open-input-file>
 expression: fname
 continue  : possible, continue with value as value from primitive

Error (? for help) >>
> (errno)
2
>