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# tag: cpp
from libcpp.vector cimport vector
cdef extern from "cpp_template_ref_args.h":
cdef cppclass Bar[T]:
Bar()
# bug: Bar[T] created before class fully defined
T value
Bar[T] & ref() except +
const Bar[T] & const_ref() except +
const Bar[T] & const_ref_const() except +
cdef cppclass Foo[T]:
Foo()
int bar_value(Bar[int] & bar)
def test_template_ref_arg(int x):
"""
>>> test_template_ref_arg(4)
4
"""
# Templated reference parameters in method
# of templated classes were not properly coalesced.
cdef Foo[size_t] foo
cdef Bar[int] bar
bar.value = x
return foo.bar_value(bar.ref())
def test_template_ref_attr(int x):
"""
>>> test_template_ref_attr(4)
(4, 4)
"""
cdef Bar[int] bar
bar.value = x
return bar.ref().value, bar.const_ref().value
def test_template_ref_const_attr(int x):
"""
>>> test_template_ref_const_attr(4)
4
"""
cdef vector[int] v
v.push_back(x)
cdef const vector[int] *configs = &v
cdef int value = configs.at(0)
return value
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