gcc/testsuite/gfortran.dg/realloc_on_assign_14.f90

   1 ! { dg-do compile }
   2 ! { dg-options "-Wrealloc-lhs-all -Wrealloc-lhs" }
   3 !
   4 ! PR fortran/52196
   5 !
   6 implicit none
   7 type t
   8   integer :: x
   9 end type t
  10 integer, allocatable :: a(:), b
  11 real, allocatable :: r(:)
  12 type(t), allocatable :: c(:)
  13 character(len=:), allocatable :: str
  14 character(len=:), allocatable :: astr(:)
  15
  16 allocate(a(2), b, c(1))
  17 b = 4          ! { dg-warning "Code for reallocating the allocatable variable" }
  18 a = [b,b]      ! { dg-warning "Code for reallocating the allocatable array" }
  19 c = [t(4)]     ! { dg-warning "Code for reallocating the allocatable variable" }
  20 a = 5          ! no realloc
  21 c = t(5)       ! no realloc
  22 str = 'abc'    ! { dg-warning "Code for reallocating the allocatable variable" }
  23 astr = 'abc'   ! no realloc
  24 astr = ['abc'] ! { dg-warning "Code for reallocating the allocatable array" }
  25 a = reshape(a,shape(a)) ! { dg-warning "Code for reallocating the allocatable array" }
  26 r = sin(r)
  27 r = sin(r(1))  ! no realloc
  28 b = sin(r(1))  ! { dg-warning "Code for reallocating the allocatable variable" }
  29
  30 a = nar() ! { dg-warning "Code for reallocating the allocatable array" }
  31 a = nar2() ! { dg-warning "Code for reallocating the allocatable array" }
  32 contains
  33   function nar()
  34     integer,allocatable :: nar(:)
  35   end function
  36   function nar2()
  37     integer :: nar2(8)
  38   end function
  39 end