https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110246
Bug ID: 110246
Summary: Using variables of type CHAR or BYTE as array index
does not work
Product: gcc
Version: 13.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: modula2
Assignee: gaius at gcc dot gnu.org
Reporter: ad...@tho-otto.de
Target Milestone: ---
In the following example:
IMPLEMENTATION MODULE foo;
FROM SYSTEM IMPORT BYTE;
VAR arr: ARRAY['A'..'Z'] OF INTEGER;
VAR ch: CHAR;
BEGIN
FOR ch := 'A' TO 'Z' DO arr[ch] := 0 END;
END foo.
I get error messages:
/usr/lib64/gcc/x86_64-suse-linux/13/m2/m2pim/COROUTINES.def:37:1: error: type
incompatibility, attempting to use a string ('_T38') when a CHAR is expected
/usr/lib64/gcc/x86_64-suse-linux/13/m2/m2pim/COROUTINES.def:37:1: error: type
incompatibility, attempting to use a string ('_T38') when a CHAR is expected
/usr/lib64/gcc/x86_64-suse-linux/13/m2/m2pim/COROUTINES.def:37:1: error: type
incompatibility, attempting to use a string ('_T38') when a CHAR is expected
/usr/lib64/gcc/x86_64-suse-linux/13/m2/m2pim/COROUTINES.def:37:1: error: type
incompatibility, attempting to use a string ('_T38') when a CHAR is expected
(note also the totally unrelated source line in the error message)
Changing the type of ch to BYTE i get instead:
/usr/lib64/gcc/x86_64-suse-linux/13/m2/m2pim/COROUTINES.def:37:1: error: left
operand ‘ch’ of type ‘BYTE’ is not allowed in binary expression +
