In the bounds check for copying of class expressions, the number of elements
determined from a descriptor, returned as type gfc_array_index_type (i.e. a
signed type), should be converted to the type of the passed element count,
which is of type size_type_node (i.e. unsigned), for use in comparisons.
gcc/fortran/ChangeLog:
PR fortran/106945
* trans-expr.cc (gfc_copy_class_to_class): Convert element counts in
bounds check to common type for comparison.
gcc/testsuite/ChangeLog:
PR fortran/106945
* gfortran.dg/pr106945.f90: New test.
name = (const char *)(DECL_NAME (to)->identifier.id.str);
from_len = gfc_conv_descriptor_size (from_data, 1);
+ from_len = fold_convert (TREE_TYPE (orig_nelems), from_len);
tmp = fold_build2_loc (input_location, NE_EXPR,
logical_type_node, from_len, orig_nelems);
msg = xasprintf ("Array bound mismatch for dimension %d "
--- /dev/null
+! { dg-do compile }
+! { dg-options "-fcoarray=single -fcheck=bounds -ftrapv" }
+! PR fortran/106945
+! Contributed by G. Steinmetz
+
+module m
+ implicit none
+ type t
+ class(*), allocatable :: a[:]
+ end type
+end