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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gfortran.dg/intrinsic_modulo_1.f90
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+! { dg-do run }
+! testcase from PR 19032 adapted for testsuite
+! Our implementation of modulo was wrong for P = 1 and P = -1,
+! both in the real and the integer case
+program main
+ integer, parameter :: n=16
+ real, dimension(n) :: ar, br, modulo_result, floor_result
+ integer, dimension(n) :: ai, bi , imodulo_result, ifloor_result
+
+ ai(1:4) = 5
+ ai(5:8) = -5
+ ai(9:12) = 1
+ ai(13:16) = -1
+ bi(1:4) = (/ 3,-3, 1, -1/)
+ bi(5:8) = bi(1:4)
+ bi(9:12) = bi(1:4)
+ bi(13:16) = bi(1:4)
+ ar = ai
+ br = bi
+ modulo_result = modulo(ar,br)
+ imodulo_result = modulo(ai,bi)
+ floor_result = ar-floor(ar/br)*br
+ ifloor_result = nint(real(ai-floor(real(ai)/real(bi))*bi))
+
+ do i=1,n
+ if (modulo_result(i) /= floor_result(i) ) then
+! print "(A,4F5.0)" ,"real case failed: ", &
+! ar(i),br(i), modulo_result(i), floor_result(i)
+ call abort()
+ end if
+ if (imodulo_result(i) /= ifloor_result(i)) then
+! print "(A,4I5)", "int case failed: ", &
+! ai(i), bi(i), imodulo_result(i), ifloor_result(i)
+ call abort ()
+ end if
+ end do
+end program main