ZWB
If you compile using ZWB, the compiler
removes the sign from a signed zoned decimal (DISPLAY)
field before comparing this field to an alphanumeric elementary field
during execution.
Default is: ZWB
Abbreviations are: None
If the zoned decimal item is
a scaled item (that is, it contains the symbol P in
its PICTURE string), comparisons that use the decimal
item are not affected by ZWB. Such items always have
their sign removed before the comparison is made to an alphanumeric
field.
ZWB affects how a program runs. The
same COBOL program can produce different results depending on the
setting of this option.
Use NOZWB if you
want to test input numeric fields for SPACES.