https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67431
Bug ID: 67431
Summary: ALLOCATE with SOURCE ignores overloaded assignment
operator and uses intrinsic when copying values
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: major
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: alipasha.celeris at gmail dot com
Target Milestone: ---
Created attachment 36285
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36285&action=edit
the test file (as it appears in the comment)
The following code produces wrong results (it compiles and runs with no memory
errors)
MODULE A_TEST_M
TYPE :: A_TYPE
INTEGER :: INT
CONTAINS
GENERIC :: ASSIGNMENT (=) => ASGN_A
PROCEDURE, PRIVATE :: ASGN_A
END TYPE
CONTAINS
ELEMENTAL SUBROUTINE ASGN_A (A, B)
CLASS (A_TYPE), INTENT (INOUT) :: A
CLASS (A_TYPE), INTENT (IN) :: B
A%INT = 42
END SUBROUTINE
END MODULE A_TEST_M
PROGRAM ASGN_REALLOC_TEST
USE A_TEST_M
TYPE (A_TYPE), ALLOCATABLE :: A(:), B(:)
ALLOCATE (B(4))
B(:)%INT = 765
ALLOCATE (A, SOURCE = B)
PRINT *, 'SIZE(A)', SIZE(A), 'A', A
DEALLOCATE (A, B)
END PROGRAM
The result is:
SIZE(A) 4 A 765 765 765 765
While all A(:)%INT should be equal to 42 if the overloaded assignment operator
was used.
