def test_Subroutine():
# Code to generate the subroutine in the example from
# http://www.fortran90.org/src/best-practices.html#arrays
r = Symbol("r", real=True)
i = Symbol("i", integer=True)
v_r = Variable.deduced(r, attrs=(dimension(assumed_extent), intent_out))
v_i = Variable.deduced(i)
v_n = Variable("n", integer)
do_loop = Do([Assignment(Element(r, [i]),
literal_dp(1) / i**2)], i, 1, v_n)
sub = Subroutine(
"f",
[v_r],
[
Declaration(v_n),
Declaration(v_i),
Assignment(v_n, size(r)), do_loop
],
)
x = Symbol("x", real=True)
v_x3 = Variable.deduced(x, attrs=[dimension(3)])
mod = Module("mymod", definitions=[sub])
prog = Program(
"foo",
[
use(mod, only=[sub]),
Declaration(v_x3),
SubroutineCall(sub, [v_x3]),
Print([sum_(v_x3), v_x3]),
],
)
if not has_fortran():
skip("No fortran compiler found.")
(stdout, stderr), info = compile_run_strings(
[("a.f90", fcode(mod, standard=90)),
("b.f90", fcode(prog, standard=90))],
clean=True,
)
ref = [1.0 / i**2 for i in range(1, 4)]
assert str(sum(ref))[:-3] in stdout
for _ in ref:
assert str(_)[:-3] in stdout
assert stderr == ""
def test_Subroutine():
# Code to generate the subroutine in the example from
# http://www.fortran90.org/src/best-practices.html#arrays
r = Symbol('r', real=True)
i = Symbol('i', integer=True)
v_r = Variable.deduced(r, attrs=(dimension(assumed_extent), intent_out))
v_i = Variable.deduced(i)
v_n = Variable('n', integer)
do_loop = Do([
Assignment(Element(r, [i]), literal_dp(1)/i**2)
], i, 1, v_n)
sub = Subroutine("f", [v_r], [
Declaration(v_n),
Declaration(v_i),
Assignment(v_n, size(r)),
do_loop
])
x = Symbol('x', real=True)
v_x3 = Variable.deduced(x, attrs=[dimension(3)])
mod = Module('mymod', definitions=[sub])
prog = Program('foo', [
use(mod, only=[sub]),
Declaration(v_x3),
SubroutineCall(sub, [v_x3]),
Print([sum_(v_x3), v_x3])
])
if not has_fortran():
skip("No fortran compiler found.")
(stdout, stderr), info = compile_run_strings([
('a.f90', fcode(mod, standard=90)),
('b.f90', fcode(prog, standard=90))
], clean=True)
ref = [1.0/i**2 for i in range(1, 4)]
assert str(sum(ref))[:-3] in stdout
for _ in ref:
assert str(_)[:-3] in stdout
assert stderr == ''