Guardian Procedure Calls Reference Manual (G06.25+)

Guardian Procedure Calls (D-E)

Guardian Procedure Calls Reference Manual—522629-013

4-106

ERRNO_GET_ Procedure

Summary

Considerations for C Programmers

Syntax for TAL Programmers

Parameters

Example

Considerations

Summary

The ERRNO_GET_ procedure obtains the value of the errno variable set by many

OSS, native C/C++, and some Guardian routines.

Considerations for C Programmers

C programmers using the C run-time libraries, CRE support libraries, or shared run-

time libraries (SRLs) can access the

errno variable directly and do not use this

procedure.

Syntax for TAL Programmers

Parameters

error returned value

INT(32)

returns the value of the

errno variable.

Example

err := ERRNO_GET_;

Considerations

This procedure must be used to examine the errno value set by the

SIGACTION_INIT_, SIGACTION_RESTORE_, SIGACTION_SUPPLANT_, and

SIGJMP_SETMASK_ procedures when an error is detected.

?SOURCE $SYSTEM.SYSTEM.HERRNO

error := ERRNO_GET_;