XOPEN (↑ Allowing Language Features)
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Directive: XOPEN
Function: Specifies that words reserved under the X/Open definition
of COBOL are to be treated as reserved words.
Syntax:
►►─┬───┬─┬───────XOPEN──"level"───┬────────►◄
└─/─┘ └┬────┬─XOPEN────────────┘
└─NO─┘
Parameters: level Must be 3 or 4. The level of
X/Open definition COBOL to be
compatible with.
Default: NOXOPEN
Phase: Syntax check
$SET: Initial
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