インテル® Fortran コンパイラー XE 13.1 ユーザー・リファレンス・ガイド
POSIX Subroutine: Gets the effective group ID of the current process.
USE IFPOSIX
CALL PXFGETEGID (iegid,ierror)
iegid
(Output) INTEGER(4). The returned effective group ID.
ierror
(Output) INTEGER(4). The error status.
If successful, ierror is set to zero; otherwise, an error code.
The effective ID corresponds to the set ID bit on the file being executed.