! { dg-do run } ! ! This test will fail on older x86_64 glibc (< 2.20), due to this bug: ! https://sourceware.org/bugzilla/show_bug.cgi?id=16198 ! We usually won't see it anyway, because on such systems x86_64 assembly ! (libgfortran/config/fpu-387.h) is used. ! use :: ieee_arithmetic implicit none type(ieee_status_type) :: s1, s2 logical :: flags(5), halt(5), haltworks type(ieee_round_type) :: mode real :: x ! Test IEEE_GET_STATUS and IEEE_SET_STATUS call ieee_set_flag(ieee_all, .false.) call ieee_set_rounding_mode(ieee_down) call ieee_set_halting_mode(ieee_all, .false.) haltworks = ieee_support_halting(ieee_overflow) call ieee_get_status(s1) call ieee_set_status(s1) call ieee_get_flag(ieee_all, flags) if (any(flags)) STOP 1 call ieee_get_rounding_mode(mode) if (mode /= ieee_down) STOP 2 call ieee_get_halting_mode(ieee_all, halt) if (any(halt)) STOP 3 call ieee_set_rounding_mode(ieee_to_zero) call ieee_set_flag(ieee_underflow, .true.) call ieee_set_halting_mode(ieee_overflow, .true.) x = -1 x = sqrt(x) if (.not. ieee_is_nan(x)) STOP 4 call ieee_get_status(s2) call ieee_get_flag(ieee_all, flags) if (.not. (all(flags .eqv. [.false.,.false.,.true.,.true.,.false.]) & .or. all(flags .eqv. [.false.,.false.,.true.,.true.,.true.]) & .or. all(flags .eqv. [.false.,.false.,.true.,.false.,.false.]) & .or. all(flags .eqv. [.false.,.false.,.true.,.false.,.true.]))) STOP 5 call ieee_get_rounding_mode(mode) if (mode /= ieee_to_zero) STOP 6 call ieee_get_halting_mode(ieee_all, halt) if ((haltworks .and. .not. halt(1)) .or. any(halt(2:))) STOP 7 call ieee_set_status(s2) call ieee_get_flag(ieee_all, flags) if (.not. (all(flags .eqv. [.false.,.false.,.true.,.true.,.false.]) & .or. all(flags .eqv. [.false.,.false.,.true.,.true.,.true.]) & .or. all(flags .eqv. [.false.,.false.,.true.,.false.,.false.]) & .or. all(flags .eqv. [.false.,.false.,.true.,.false.,.true.]))) STOP 8 call ieee_get_rounding_mode(mode) if (mode /= ieee_to_zero) STOP 9 call ieee_get_halting_mode(ieee_all, halt) if ((haltworks .and. .not. halt(1)) .or. any(halt(2:))) STOP 10 call ieee_set_status(s1) call ieee_get_flag(ieee_all, flags) if (any(flags)) STOP 11 call ieee_get_rounding_mode(mode) if (mode /= ieee_down) STOP 12 call ieee_get_halting_mode(ieee_all, halt) if (any(halt)) STOP 13 call ieee_set_status(s2) call ieee_get_flag(ieee_all, flags) if (.not. (all(flags .eqv. [.false.,.false.,.true.,.true.,.false.]) & .or. all(flags .eqv. [.false.,.false.,.true.,.true.,.true.]) & .or. all(flags .eqv. [.false.,.false.,.true.,.false.,.false.]) & .or. all(flags .eqv. [.false.,.false.,.true.,.false.,.true.]))) STOP 14 call ieee_get_rounding_mode(mode) if (mode /= ieee_to_zero) STOP 15 call ieee_get_halting_mode(ieee_all, halt) if ((haltworks .and. .not. halt(1)) .or. any(halt(2:))) STOP 16 end