! PR 14396
! These we failing on targets which do not provide the c99 complex math
! functions.
! Extracted from intrinsic77.f in the g77 testsuite.
logical fail
common /flags/ fail
fail = .false.
call square_root
if (fail) call abort
end
subroutine square_root
intrinsic sqrt, dsqrt, csqrt
real x, a
x = 4.0
a = 2.0
call c_r(SQRT(x),a,'SQRT(real)')
call c_d(SQRT(1.d0*x),1.d0*a,'SQRT(double)')
call c_c(SQRT((1.,0.)*x),(1.,0.)*a,'SQRT(complex)')
call c_d(DSQRT(1.d0*x),1.d0*a,'DSQRT(double)')
call c_c(CSQRT((1.,0.)*x),(1.,0.)*a,'CSQRT(complex)')
call p_r_r(SQRT,x,a,'SQRT')
call p_d_d(DSQRT,1.d0*x,1.d0*a,'DSQRT')
call p_c_c(CSQRT,(1.,0.)*x,(1.,0.)*a ,'CSQRT')
end
subroutine failure(label)
! Report failure and set flag
character*(*) label
logical fail
common /flags/ fail
write(6,'(a,a,a)') 'Test ',label,' FAILED'
fail = .true.
end
subroutine c_r(a,b,label)
! Check if REAL a equals b, and fail otherwise
real a, b
character*(*) label
if ( abs(a-b) .gt. 1.0e-5 ) then
call failure(label)
write(6,*) 'Got ',a,' expected ', b
end if
end
subroutine c_d(a,b,label)
! Check if DOUBLE PRECISION a equals b, and fail otherwise
double precision a, b
character*(*) label
if ( abs(a-b) .gt. 1.0d-5 ) then
call failure(label)
write(6,*) 'Got ',a,' expected ', b
end if
end
subroutine c_c(a,b,label)
! Check if COMPLEX a equals b, and fail otherwise
complex a, b
character*(*) label
if ( abs(a-b) .gt. 1.0e-5 ) then
call failure(label)
write(6,*) 'Got ',a,' expected ', b
end if
end
subroutine p_r_r(f,x,a,label)
! Check if REAL f(x) equals a for REAL x
real f,x,a
character*(*) label
call c_r(f(x),a,label)
end
subroutine p_d_d(f,x,a,label)
! Check if DOUBLE PRECISION f(x) equals a for DOUBLE PRECISION x
double precision f,x,a
character*(*) label
call c_d(f(x),a,label)
end
subroutine p_c_c(f,x,a,label)
! Check if COMPLEX f(x) equals a for COMPLEX x
complex f,x,a
character*(*) label
call c_c(f(x),a,label)
end