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[Default]

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This option specifies the boundary alignment value for structure members and class members.

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The boundary alignment value for structure members can also be specified by the #pragma pack extension. If both this option and a #pragma extension are specified, the #pragma specification takes priority. The boundary alignment value for structures and classes equals the maximum boundary alignment value for members.

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The boundary alignment values for structure members and class members when these options are specified are shown in the following table.