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Error Messages - 1

The following list of error messages are returned by CAM BASIC. These indicate clearly, what is wrong, within the

context of a program, and should be of great use in program debugging.

NUM MESSAGE EXPLANATION

0 < Unknown err or> Error is undefined

1 < NEXT w/o FOR> A NEXT statement is encountered without a matching FOR.

2 < Syntax> A line is encountered that includes an incorrect sequence of characters

(misspelled keyword, incorrect punctuation, etc.).

3 < RETURN w/o GOSUB> A RET URN statement is encountered for which ther e is no previous,

unmatched GO SUB statem ent.

4 < Out of DATA> A READ statement is executed when there are no more DATA

statements with unread data remaining in the program.

5 < Illegal argument> A parameter that is out of range is passed to a numeric or string function.

This error m ay also occur as a result of:

a. A negative or unr easonably lar ge subscript.

b. A negative or zero argum ent with the LOG function.

c. A negative argument to SQR.

d. A negative mantissa w ith a non-integer exponent.

e. An improper argument to MID$, LEFT$, RIGHT$, PEEK,

POKE, TAB, SPC or ON...GOTO.

f. Other function arguments which exceed the limits of the function.

6 < Overflow> The result of a calculation is too large to be represented in CAMBASIC

single– precision format. If underflow occurs, execution continues

without an error.

7 < Out of memory> A program is too large, or has too many loops, subroutines, and/or

variables; or has expressions that are too complicated to evaluate.

8 < Line/label not found> A nonexistent line number is referenced in an EDIT, DELETE,

REN UM , etc. statement.

9 < Subscript out of range> An array element is referenced, either w ith a subscript that is outside the

dimensions of the arr ay, or with the wrong number of subscripts.

10 < Array already dimensioned> Two D IM statem ents are given for the same ar ray; or a DIM statem ent is

given for an array after the default dimension of 11 has been established

for that array.

11 < Division by zero> A division by zero is encountered in an expression; or, the value zero has

been raised to a negative power. In the first case, the result is machine

infinity (with the appropr iate sign); in the second case, the result is

positive machine infinity.

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Remote-processing CAMBASIC Manuale Utente Pagina 186