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+! { dg-do run }
+! { dg-additional-sources value_4.c }
+! { dg-options "-ff2c -w -O0" }
+!
+! Tests the functionality of the patch for PR29642, which requested the
+! implementation of the F2003 VALUE attribute for gfortran, by calling
+! external C functions by value and by reference. This is effectively
+! identical to c_by_val_1.f, which does the same for %VAL.
+!
+! Contributed by Paul Thomas <pault@gcc.gnu.org>
+!
+module global
+ interface delta
+ module procedure deltai, deltar, deltac
+ end interface delta
+ real(4) :: epsi = epsilon (1.0_4)
+contains
+ function deltai (a, b) result (c)
+ integer(4) :: a, b
+ logical :: c
+ c = (a /= b)
+ end function deltai
+
+ function deltar (a, b) result (c)
+ real(4) :: a, b
+ logical :: c
+ c = (abs (a-b) > epsi)
+ end function deltar
+
+ function deltac (a, b) result (c)
+ complex(4) :: a, b
+ logical :: c
+ c = ((abs (real (a-b)) > epsi).or.(abs (aimag (a-b)) > epsi))
+ end function deltac
+end module global
+
+program value_4
+ use global
+ interface
+ function f_to_f (x, y)
+ real(4), pointer :: f_to_f
+ real(4) :: x, y
+ value :: x
+ end function f_to_f
+ end interface
+
+ interface
+ function i_to_i (x, y)
+ integer(4), pointer :: i_to_i
+ integer(4) :: x, y
+ value :: x
+ end function i_to_i
+ end interface
+
+ interface
+ complex(4) function c_to_c (x, y)
+ complex(4) :: x, y
+ value :: x
+ end function c_to_c
+ end interface
+
+ real(4) a, b, c
+ integer(4) i, j, k
+ complex(4) u, v, w
+
+ a = 42.0
+ b = 0.0
+ c = a
+ b = f_to_f (a, c)
+ if (delta ((2.0 * a), b)) call abort ()
+
+ i = 99
+ j = 0
+ k = i
+ j = i_to_i (i, k)
+ if (delta ((3_4 * i), j)) call abort ()
+
+ u = (-1.0, 2.0)
+ v = (1.0, -2.0)
+ w = u
+ v = c_to_c (u, w)
+ if (delta ((4.0 * u), v)) call abort ()
+end program value_4