https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95177
Bug ID: 95177 Summary: error: array subscript has type char Product: gcc Version: 10.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libfortran Assignee: unassigned at gcc dot gnu.org Reporter: roland.illig at gmx dot de Target Milestone: --- Created attachment 48552 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48552&action=edit patch The GCC code should correctly use the <ctype.h> functions. Compiling GCC with -Werror=char-subscripts should succeed.