diff options
Diffstat (limited to 'gcc/fortran/decl.c')
| -rw-r--r-- | gcc/fortran/decl.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/gcc/fortran/decl.c b/gcc/fortran/decl.c index df81369..d3ddda2 100644 --- a/gcc/fortran/decl.c +++ b/gcc/fortran/decl.c @@ -1215,10 +1215,38 @@ build_sym (const char *name, gfc_charlen *cl, bool cl_deferred, { symbol_attribute attr; gfc_symbol *sym; + int upper; if (gfc_get_symbol (name, NULL, &sym)) return false; + /* Check if the name has already been defined as a type. The + first letter of the symtree will be in upper case then. Of + course, this is only necessary if the upper case letter is + actually different. */ + + upper = TOUPPER(name[0]); + if (upper != name[0]) + { + char u_name[GFC_MAX_SYMBOL_LEN + 1]; + gfc_symtree *st; + int nlen; + + nlen = strlen(name); + gcc_assert (nlen <= GFC_MAX_SYMBOL_LEN); + strncpy (u_name, name, nlen + 1); + u_name[0] = upper; + + st = gfc_find_symtree (gfc_current_ns->sym_root, u_name); + + if (st != 0) + { + gfc_error ("Symbol %qs at %C also declared as a type at %L", name, + &st->n.sym->declared_at); + return false; + } + } + /* Start updating the symbol table. Add basic type attribute if present. */ if (current_ts.type != BT_UNKNOWN && (sym->attr.implicit_type == 0 |