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!Program to test RRSPACING intrinsic function.
program test_rrspacing
call test_real4(3.0)
call test_real4(33.0)
call test_real4(-3.0)
call test_real8(3.0_8)
call test_real8(33.0_8)
call test_real8(-33.0_8)
end
subroutine test_real4(orig)
real x,y,orig
integer p
x = orig
p = 24
y = abs (x * 2.0 ** (- exponent (x))) * (2.0 ** p)
x = rrspacing(x)
if (abs (x - y) .gt. abs(x * 1e-6)) call abort
end
subroutine test_real8(orig)
real*8 x,y,t,orig
integer p
x = orig
p = 53
y = abs (x * 2.0 ** (- exponent (x))) * (2.0 ** p)
x = rrspacing(x)
if (abs (x - y) .gt. abs(x * 1e-6)) call abort
end
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