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! { dg-do run }
! Testcase for SIGN() with integer arguments
! Check that:
! + SIGN() evaluates its arguments only once
! + SIGN() works on large values
! + SIGN() works with parameter arguments
! Contributed by FX Coudert <fxcoudert@gmail.com>
program sign1
implicit none
integer(kind=1), parameter :: one1 = 1_1, mone1 = -1_1
integer(kind=2), parameter :: one2 = 1_2, mone2 = -1_2
integer(kind=4), parameter :: one4 = 1_4, mone4 = -1_4
integer(kind=8), parameter :: one8 = 1_8, mone8 = -1_8
integer(kind=1) :: i1, j1
integer(kind=2) :: i2, j2
integer(kind=4) :: i4, j4
integer(kind=8) :: i8, j8
integer :: i = 1
i1 = huge(0_1) ; j1 = -huge(0_1)
if (sign(i1, j1) /= j1) call abort()
if (sign(j1, i1) /= i1) call abort()
if (sign(i1,one1) /= i1 .or. sign(j1,one1) /= i1) call abort()
if (sign(i1,mone1) /= j1 .or. sign(j1,mone1) /= j1) call abort()
i2 = huge(0_2) ; j2 = -huge(0_2)
if (sign(i2, j2) /= j2) call abort()
if (sign(j2, i2) /= i2) call abort()
if (sign(i2,one2) /= i2 .or. sign(j2,one2) /= i2) call abort()
if (sign(i2,mone2) /= j2 .or. sign(j2,mone2) /= j2) call abort()
i4 = huge(0_4) ; j4 = -huge(0_4)
if (sign(i4, j4) /= j4) call abort()
if (sign(j4, i4) /= i4) call abort()
if (sign(i4,one4) /= i4 .or. sign(j4,one4) /= i4) call abort()
if (sign(i4,mone4) /= j4 .or. sign(j4,mone4) /= j4) call abort()
i8 = huge(0_8) ; j8 = -huge(0_8)
if (sign(i8, j8) /= j8) call abort()
if (sign(j8, i8) /= i8) call abort()
if (sign(i8,one8) /= i8 .or. sign(j8,one8) /= i8) call abort()
if (sign(i8,mone8) /= j8 .or. sign(j8,mone8) /= j8) call abort()
if (sign(foo(i), 1) /= 1) call abort
if (sign(foo(i), -1) /= -2) call abort
if (sign(42, foo(i)) /= 42) call abort
if (sign(42, -foo(i)) /= -42) call abort
if (i /= 5) call abort
if (sign(bar(), 1) /= 1) call abort
if (sign(bar(), -1) /= -2) call abort
if (sign(17, bar()) /= 17) call abort
if (sign(17, -bar()) /= -17) call abort
if (bar() /= 5) call abort
contains
integer function foo(i)
integer :: i
foo = i
i = i + 1
end function
integer function bar()
integer, save :: i = 0
i = i + 1
bar = i
end function
end
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