インテル® Fortran コンパイラー 19.0 デベロッパー・ガイドおよびリファレンス

INQUIRE: BLANK Specifier

The BLANK specifier asks what type of blank control is in effect for a file. It takes the following form:

BLANK = blnk

blnk

Is a scalar default character variable that is assigned one of the following values:

'NULL'

If null blank control is in effect for the file

'ZERO'

If zero blank control is in effect for the file

'UNDEFINED'

If the file is not connected, or it is not connected for formatted data transfer