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Facilità d'uso
Language Elements and Expressions
Conditional Expressions
Table 38-8. Precedence in Arithmetic Expressions
Ambiguous
Interpretation
A / B * C
(A / B) * C
A / B / C
(A / B) / C
A ** B ** C
(A ** B) ** C
A + B / C + D ** E * F - G
((A + (B / C)) + ((D ** E) * F)) - G
Table 38-9. Operator-Operand Combinations
Successor Element
Binary Operator
Unary Operator
First Element
Variable
+ - * / **
+ or -
(
)
Identifier or literal
No
Yes
No
No
Yes
Binary Operator
Yes
No
Yes
Yes
No
+ - * / **
Unary Operator
Yes
No
No
Yes
No
+ or -
(
Yes
No
Yes
Yes
No
)
No
Yes
No
No
Yes
Conditional Expressions
• Simple Relation Condition
• Simple Class Condition
• Simple Sign Condition
• Negated Condition
• Combined Condition
• Abbreviated Combined Relation Condition
Simple Relation Condition
• Nonpointer Operands
• Pointer Operands
HP COBOL Manual for TNS/E Programs —520347-003
38- 9
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