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OCTOBER 6, 2026
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cobol

Cobol compiler verifies computational operands are numeric.

Cobol compiler now validates that operands for ADD, SUBTRACT, MULTIPLY, and DIVIDE are numeric.

The Cobol compiler now performs validation to ensure that operands used in arithmetic operations (ADD, SUBTRACT, MULTIPLY, DIVIDE) are numeric. It also checks that outputs are either numeric or numeric-edited, improving runtime stability by catching potential data type errors early in the compilation process.

In Details

The Cobol parser now validates that the operands for arithmetic operations (ADD, SUBTRACT, MULTIPLY, DIVIDE) are numeric, and that the results are either numeric or numeric-edited. This is implemented by supplying location information to the arith_t structure, which includes new fields and helper functions to track numeric validity.

For Context
numeric-edited
A data item in COBOL that has been formatted for display, typically including currency symbols, commas, or decimal points. While it appears edited, it may still be treated as numeric for certain operations.
arith_t
A data structure likely used internally by the Cobol compiler to represent operands and results of arithmetic expressions, holding information about their types and validity.
Filed Under: cobolvalidationarithmeticcompiler