PSECT

General Compiler Directive: Modifies characteristics of a common block.

!DIR$ PSECT /common-name/ a[,a] ...

common-name

Is the name of the common block. The slashes ( / ) are required.

Is one of the following:

ALIGN= val or ALIGN= keyword

Specifies minimum alignment for the common block. ALIGN only has an effect when specified on Windows* and Linux* systems.

The val is a constant ranging from 0 through 6 on Windows* systems and 0 through 4 on Linux* systems. The specified number is interpreted as a power of 2. The value of the expression is the alignment in bytes.

The keyword is one of the following:

Keyword

Equivalent to val

BYTE

0

WORD

1

LONG

2

QUAD

3

OCTA

4

PAGE

On IA-32 architecture: range is 0 through 13 for Windows*; 0 through 12 for Linux*
[NO]WRT

Determines whether the contents of a common block can be modified during program execution.

If one program unit changes one or more characteristics of a common block, all other units that reference that common block must also change those characteristics in the same way.

The defaults are ALIGN=OCTA and WRT.

PSECT

See Also