Informix Error -2958: You may have a maximum of ten parameters in a C-function.

Reasons / Common Causes

-2958 fires when a call to an external C function in the form specification passes more than ten parameters — per the official guidance, this is a hard limit on the form compiler's handling of C-function calls.

1. A C-function call with more than ten parameters, per the official guidance — the direct, only cause.

Solutions / Resolution

1. Find some way to pass the same information in fewer parameters, per the official guidance — for example, by packing related values into a single structured parameter on the C side.

Examples

Too many parameters

INSTRUCTIONS
  AFTER FIELD item_code
    CALL cfunc(a, b, c, d, e, f, g, h, i, j, k)
  END
-- -2958: 11 parameters exceeds the limit of 10
END

Corrected

INSTRUCTIONS
  AFTER FIELD item_code
    CALL cfunc(a, b, c, d, e, f, g, h, i, j)
  END
END

Diagnostic Checks

1. Count the parameters in every C-function call in the form specification, and reduce any that exceed ten.

Related Errors / Related Topics

No closely related error codes are cross-referenced for -2958 in this set yet.

A C-function call passes more than ten parameters — the form compiler enforces a hard limit of ten.