def test13_templated_return_type(self):
import cppyy
cppyy.cppdef("""
struct RTTest_SomeStruct1 {};
template<class ...T> struct RTTest_TemplatedList {};
template<class ...T> auto rttest_make_tlist(T ... args) {
return RTTest_TemplatedList<T...>{};
}
namespace RTTest_SomeNamespace {
struct RTTest_SomeStruct2 {};
template<class ...T> struct RTTest_TemplatedList2 {};
}
template<class ...T> auto rttest_make_tlist2(T ... args) {
return RTTest_SomeNamespace::RTTest_TemplatedList2<T...>{};
}
""")
from cppyy.gbl import rttest_make_tlist, rttest_make_tlist2, \
RTTest_SomeNamespace, RTTest_SomeStruct1
assert rttest_make_tlist(RTTest_SomeStruct1())
assert rttest_make_tlist(RTTest_SomeNamespace.RTTest_SomeStruct2())
assert rttest_make_tlist2(RTTest_SomeStruct1())
assert rttest_make_tlist2(RTTest_SomeNamespace.RTTest_SomeStruct2())
def test02_dir(self):
"""For the same reasons as test01_kdcraw, this used to crash."""
import cppyy, pydoc
assert not '__abstractmethods__' in dir(cppyy.gbl.gInterpreter)
assert '__class__' in dir(cppyy.gbl.gInterpreter)
self.__class__.helpout = []
pydoc.doc(cppyy.gbl.gInterpreter)
helptext = ''.join(self.__class__.helpout)
assert 'TInterpreter' in helptext
assert 'CPPInstance' in helptext
assert 'AddIncludePath' in helptext
cppyy.cppdef("namespace cppyy_regression_test { void iii() {}; }")
assert not 'iii' in cppyy.gbl.cppyy_regression_test.__dict__
assert not '__abstractmethods__' in dir(cppyy.gbl.cppyy_regression_test)
assert '__class__' in dir(cppyy.gbl.cppyy_regression_test)
assert 'iii' in dir(cppyy.gbl.cppyy_regression_test)
assert not 'iii' in cppyy.gbl.cppyy_regression_test.__dict__
assert cppyy.gbl.cppyy_regression_test.iii
assert 'iii' in cppyy.gbl.cppyy_regression_test.__dict__
self.__class__.helpout = []
pydoc.doc(cppyy.gbl.cppyy_regression_test)
helptext = ''.join(self.__class__.helpout)
assert 'CPPInstance' in helptext
def test11_templated_ctor(self):
"""Test templated constructors"""
import cppyy
cppyy.cppdef("""
template <typename T>
class RTTest_SomeClassWithTCtor {
public:
template<typename R>
RTTest_SomeClassWithTCtor(int n, R val) : m_double(n+val) {}
double m_double;
};
namespace RTTest_SomeNamespace {
template <typename T>
class RTTest_SomeClassWithTCtor {
public:
RTTest_SomeClassWithTCtor() : m_double(-1.) {}
template<typename R>
RTTest_SomeClassWithTCtor(int n, R val) : m_double(n+val) {}
double m_double;
};
}
""")
from cppyy import gbl
assert round(gbl.RTTest_SomeClassWithTCtor[int](1, 3.1).m_double - 4.1, 8) == 0.
RTTest2 = gbl.RTTest_SomeNamespace.RTTest_SomeClassWithTCtor
assert round(RTTest2[int](1, 3.1).m_double - 4.1, 8) == 0.
assert round(RTTest2[int]().m_double + 1., 8) == 0.
def test01_kdcraw(self):
"""Doc strings for KDcrawIface (used to crash)."""
import cppyy, pydoc
# TODO: run a find for these paths
qtpath = "/usr/include/qt5"
kdcraw_h = "/usr/include/KF5/KDCRAW/kdcraw/kdcraw.h"
if not os.path.isdir(qtpath) or not os.path.exists(kdcraw_h):
import warnings
warnings.warn("no KDE/Qt found, skipping test01_kdcraw")
return
# need to resolve qt_version_tag for the incremental compiler; since
# it's not otherwise used, just make something up
cppyy.cppdef("int qt_version_tag = 42;")
cppyy.add_include_path(qtpath)
cppyy.include(kdcraw_h)
from cppyy.gbl import KDcrawIface
self.__class__.helpout = []
pydoc.doc(KDcrawIface.KDcraw)
helptext = ''.join(self.__class__.helpout)
assert 'KDcraw' in helptext
assert 'CPPInstance' in helptext
def test02_non_type_template_args(self):
"""Use of non-types as template arguments"""
import cppyy
cppyy.cppdef("template<int i> int nt_templ_args() { return i; };")
assert cppyy.gbl.nt_templ_args[1]() == 1
assert cppyy.gbl.nt_templ_args[256]() == 256
def test05_lambda_calls(self):
"""Call (global) lambdas"""
import cppyy
cppyy.cppdef("auto gMyLambda = [](int a) { return 40 + a; };")
assert cppyy.gbl.gMyLambda
assert cppyy.gbl.gMyLambda(2) == 42
assert cppyy.gbl.gMyLambda(40) == 80
def test04_type_deduction(self):
import cppyy
cppyy.cppdef("""
template <typename T> struct DeductTest_Wrap {
static auto whatis(T t) { return t; }
};
""")
w = cppyy.gbl.DeductTest_Wrap[int]()
three = w.whatis(3)
assert three == 3
def test05_freshly_instantiated_map_type(self):
"""Instantiate a map from a newly defined class"""
import cppyy
cppyy.cppdef('template<typename T> struct Data { T fVal; };')
from cppyy.gbl import std, Data
results = std.map( std.string, Data(int) )()
d = Data(int)(); d.fVal = 42
results['summary'] = d
assert results.size() == 1
for tag, data in results:
assert data.fVal == 42
def test05_lambda_calls(self):
"""Call (global) lambdas"""
import cppyy
cppyy.cppdef("auto gMyLambda = [](int a) { return 40 + a; };")
assert cppyy.gbl.gMyLambda
assert cppyy.gbl.gMyLambda(2) == 42
assert cppyy.gbl.gMyLambda(40) == 80
cppyy.cppdef("auto gime_a_lambda1() { return []() { return 42; }; }")
l1 = cppyy.gbl.gime_a_lambda1()
assert l1
assert l1() == 42
cppyy.cppdef("auto gime_a_lambda2() { int a = 4; return [a](int b) { return 42+a+b; }; }")
l2 = cppyy.gbl.gime_a_lambda2()
assert l2
assert l2(2) == 48
cppyy.cppdef("auto gime_a_lambda3(int a ) { return [a](int b) { return 42+a+b; }; }")
l3 = cppyy.gbl.gime_a_lambda3(4)
assert l3
assert l3(2) == 48
def test08_lambda_calls(self):
"""Call (global) lambdas"""
import cppyy
cppyy.cppdef("auto gMyLambda = [](int a) { return 40 + a; };")
assert cppyy.gbl.gMyLambda
assert cppyy.gbl.gMyLambda(2) == 42
assert cppyy.gbl.gMyLambda(40) == 80
if cppyy.gbl.gInterpreter.ProcessLine("__cplusplus;") >= 201402:
cppyy.cppdef("auto gime_a_lambda1() { return []() { return 42; }; }")
l1 = cppyy.gbl.gime_a_lambda1()
assert l1
assert l1() == 42
cppyy.cppdef("auto gime_a_lambda2() { int a = 4; return [a](int b) { return 42+a+b; }; }")
l2 = cppyy.gbl.gime_a_lambda2()
assert l2
assert l2(2) == 48
cppyy.cppdef("auto gime_a_lambda3(int a ) { return [a](int b) { return 42+a+b; }; }")
l3 = cppyy.gbl.gime_a_lambda3(4)
assert l3
assert l3(2) == 48
def test03_replacement_of_eq(self):
"""A global templated function should work as a method"""
import cppyy
cppyy.cppdef("""template<class C>
bool cont_eq(const typename C::iterator& a, const typename C::iterator& b) {
return a != b;
}""")
a = cppyy.gbl.std.list[int]()
assert a.begin() == a.end()
a.begin().__class__.__eq__ = cppyy.gbl.cont_eq[cppyy.gbl.std.list[int]]
assert not (a.begin() == a.end())
def test04_template_aliases(self):
"""Access to templates made available with 'using'"""
import cppyy
# through dictionary
davec = cppyy.gbl.DA_vector["float"]()
davec += range(10)
assert davec[5] == 5
# through interpreter
cppyy.cppdef("template<typename T> using IA_vector = std::vector<T>;")
iavec = cppyy.gbl.IA_vector["float"]()
iavec += range(10)
assert iavec[5] == 5
def test18_overload(self):
"""Test usage of __overload__"""
import cppyy
cppyy.cppdef("""struct Variable {
Variable(double lb, double ub, double value, bool binary, bool integer, const string& name) {}
Variable(int) {}
};""")
for sig in [
'double, double, double, bool, bool, const string&',
'double,double,double,bool,bool,const string&',
'double lb, double ub, double value, bool binary, bool integer, const string& name'
]:
assert cppyy.gbl.Variable.__init__.__overload__(sig)
def test_builtin_arctan2(self):
# space
la_str = self.import_trig + """c = atan2(a, b)
where
a: scalar
b: scalar"""
func_info = self.gen_func_info(la_str)
self.assertEqual(func_info.numpy_func(3, 2).c, np.arctan2(3, 2))
# eigen test
cppyy.include(func_info.eig_file_name)
func_list = [
"bool {}(){{".format(func_info.eig_test_name),
" return {}(3, 2).c == atan2(3, 2);".format(
func_info.eig_func_name), "}"
]
cppyy.cppdef('\n'.join(func_list))
def generate_GA_setters():
DEFS = """
#include <ogdf/basic/GraphAttributes.h>
#include <ogdf/cluster/ClusterGraphAttributes.h>
namespace ogdf_pythonization {
void GraphAttributes_set_directed(ogdf::GraphAttributes &GA, bool v) { GA.directed() = v; }"""
for name, obj, val in GA_FIELDS:
DEFS += (
"\n\tvoid GraphAttributes_set_{name}(ogdf::GraphAttributes &GA, {obj} o, {val} v) "
"{{ GA.{name}(o) = v; }}\n".format(name=name, obj=obj, val=val))
for name, obj, val in CGA_FIELDS:
DEFS += (
"\n\tvoid GraphAttributes_set_{name}(ogdf::ClusterGraphAttributes &GA, {obj} o, {val} v) "
"{{ GA.{name}(o) = v; }}\n".format(name=name, obj=obj, val=val))
cppyy.cppdef(DEFS + "};")
def test_builtin_trig_power(self):
# space
la_str = self.import_trig + """b = asin^2(a)
where
a: scalar"""
func_info = self.gen_func_info(la_str)
self.assertEqual(
func_info.numpy_func(0.4).b, np.power(np.arcsin(0.4), 2))
# eigen test
cppyy.include(func_info.eig_file_name)
func_list = [
"bool {}(){{".format(func_info.eig_test_name),
" return {}(0.4).b == pow(asin(0.4), 2);".format(
func_info.eig_func_name), "}"
]
cppyy.cppdef('\n'.join(func_list))
def get_cpp_function(node):
c_code = to_cpp(node, c_data_type="double")
import cppyy
cppyy.cppdef(c_code)
# print(c_code)
from cppyy.gbl import spn_many
import numpy as np
def python_eval_func(data):
results = np.zeros((data.shape[0], 1))
spn_many(data, results, data.shape[0])
return results
return python_eval_func
def test17_chaining(self):
"""Respective return values of temporaries should not go away"""
import cppyy
cppyy.cppdef("""namespace Lifeline {
struct A1 { A1(int x) : x(x) {} int x; };
struct A2 { A2(int x) { v.emplace_back(x); } std::vector<A1> v; std::vector<A1>& get() { return v; } };
struct A3 { A3(int x) { v.emplace_back(x); } std::vector<A2> v; std::vector<A2>& get() { return v; } };
struct A4 { A4(int x) { v.emplace_back(x); } std::vector<A3> v; std::vector<A3>& get() { return v; } };
struct A5 { A5(int x) { v.emplace_back(x); } std::vector<A4> v; std::vector<A4>& get() { return v; } };
A5 gime(int i) { return A5(i); }
}""")
assert cppyy.gbl.Lifeline.gime(42).get()[0].get()[0].get()[0].get()[0].x == 42
def __init__(self, code_gen_results):
"""
Compile a system so that it can be instanciated and, hence, executed
code_gen_results - the returned results of dy.generate_code
Note: internally the c++ interpreter Cling C++ interpreter is used
that is interfaced by Python via https://pypi.org/project/cppyy/ .
"""
import cppyy
global system_instance_counter
#
# Note:
#
# Issue: https://bitbucket.org/wlav/cppyy/issues/295/q-reset-interpreter-or-multiple-instances
#
# Symbols once create in the cppyy.glb namespace cannot be deleted or overwritten.
# Therefore, all code is wrapped into a namespace with a unique name that involves a
# counter that increases for each call of cppyy.cppdef(src). Even if an instance of CompiledCode
# is destructed, the compiled c++ module remains in the cppyy.glb namespace, hence, over time
# symbols are accumulated. Hence, this is a memory leak. I do not know how to solve this.
#
ortd_auto_namespace_id = system_instance_counter
system_instance_counter = system_instance_counter + 1
algorithm_sourcecode, manifest = code_gen_results[
'algorithm_sourcecode'], code_gen_results['manifest']
self._manifest = manifest
# wrap all classes into a unique namespace
src = 'namespace ' + 'ortd_system_ns' + str(
ortd_auto_namespace_id) + '{\n' + algorithm_sourcecode + '\n}'
# send sourcecode to jit-compiler
cppyy.cppdef(src)
# load module and extract the main class 'simulation'
cpp_class_of_system = getattr(
cppyy.gbl,
'ortd_system_ns' + str(ortd_auto_namespace_id)).simulation
# store
self._cpp_class_of_system = cpp_class_of_system
def test21_initializer_list_and_temporary(self):
"""Conversion rules when selecting intializer_list v.s. temporary"""
import cppyy
cppyy.cppdef("""
namespace regression_test21 {
std::string what_called = "";
class Foo {
public:
Foo() = default;
Foo(int i) {
what_called += "Foo(int)";
}
Foo(std::initializer_list<uint8_t> il) {
std::ostringstream os;
os << "Foo(il<size=" << il.size() << ">)";
what_called += os.str();
}
};
class Bar {
public:
Bar() = default;
Bar(int i) {
what_called = "Bar(int)";
}
Bar(std::initializer_list<uint8_t> il) {
std::ostringstream os;
os << "Bar(il<size=" << il.size() << ">)";
what_called += os.str();
}
Bar(Foo x) {
what_called += "Bar(Foo)";
}
}; }""")
r21 = cppyy.gbl.regression_test21
assert len(r21.what_called) == 0
r21.Bar(1)
assert r21.what_called == 'Bar(int)'
r21.what_called = ''
r21.Bar([1,2]) # used to call Bar(Foo x) through implicit conversion
assert r21.what_called == 'Bar(il<size=2>)'
def test01_deque_byvalue_regression(self):
"""Return by value of a deque used to crash"""
import cppyy
assert cppyy.cppdef("std::deque<long double> f() { std::deque<long double> d ; return d ; }")
x = cppyy.gbl.f()
assert x
del x
def test19_signed_char_ref(self):
"""Signed char executor was self-referencing"""
import cppyy
cppyy.cppdef("""
class SignedCharRefGetter {
public:
void setter(signed char sc) { m_c = sc; }
signed char& getter() { return m_c; }
signed char m_c;
};""")
obj = cppyy.gbl.SignedCharRefGetter()
obj.setter('c')
assert obj.getter() == 'c'
def test22_copy_constructor(self):
"""Copy construct an object into an empty (NULL) proxy"""
import cppyy, gc
cppyy.cppdef("""
namespace regression_test22 {
struct Countable {
static int s_count;
Countable() { ++s_count; }
Countable(const Countable&) { ++s_count; }
Countable& operator=(const Countable&) { return *this; }
~Countable() { --s_count; }
};
int Countable::s_count = 0;
}""")
r22 = cppyy.gbl.regression_test22
assert r22.Countable.s_count == 0
c = r22.Countable()
assert r22.Countable.s_count == 1
raises(ReferenceError, c.__init__, r22.Countable())
gc.collect()
assert r22.Countable.s_count == 1
c.__assign__(r22.Countable())
gc.collect()
assert r22.Countable.s_count == 1
c.__destruct__()
assert r22.Countable.s_count == 0
c.__init__(r22.Countable())
gc.collect()
assert r22.Countable.s_count == 1
del c
gc.collect()
assert r22.Countable.s_count == 0
c = cppyy.bind_object(cppyy.nullptr, r22.Countable)
assert r22.Countable.s_count == 0
c.__init__(r22.Countable())
gc.collect()
assert r22.Countable.s_count == 1
def test_constant_pi(self):
# space
la_str = self.import_trig+"""A = sin(π/a)
where
a: scalar"""
func_info = self.gen_func_info(la_str)
self.assertEqual(func_info.numpy_func(2).A, 1)
# MATLAB test
if TEST_MATLAB:
mat_func = getattr(mat_engine, func_info.mat_func_name, None)
self.assertEqual(np.array(mat_func(matlab.double([2]))['A']), 1)
# eigen test
cppyy.include(func_info.eig_file_name)
func_list = ["bool {}(){{".format(func_info.eig_test_name),
" return {}(2).A == 1;".format(func_info.eig_func_name),
"}"]
cppyy.cppdef('\n'.join(func_list))
def get_macro(self, key):
try:
return getattr(self.lib, "_" + key)
except AttributeError:
assert cppyy.cppdef("""
auto _%s = %s;
""" % (key, key)), ("%s is not a defined macro" % key)
self.get_macro(key)
def test27_boolarray2cpp(self):
'''
Pass an bool array to a C++ function taking a bool*
Fixes ROOT-10731
'''
try:
import numpy as np
except:
raise ImportError("Cannot import numpy")
import cppyy
cppyy.cppdef('int convert(bool* x) { return x[0]; }')
x1 = np.array([True], '?') # bool
x2 = np.array([True], 'b') # signed char, treated as bool before
y1 = cppyy.gbl.convert(x1)
y2 = cppyy.gbl.convert(x2)
assert y1 == 1
assert y2 == 1
def test_gallery_18(self):
# sequence
la_str = """n = ∑_T A_T||M_T v_T - [0 -1
1 0] M_T u_T||²
where
v_i: ℝ^3
u_i: ℝ^3
M_i: ℝ^(2×3)
A_i: ℝ"""
v = np.array([[1, 2, 3], [3, 4, 5]])
u = np.array([[2, 1, 3], [5, 8, 1]])
M = np.array([[[2, 2, 1], [2, 1, 1]],
[[4, 2, 3], [3, 1, 2]]])
A = np.array([2, 6])
func_info = self.gen_func_info(la_str)
self.assertTrue(np.isclose(func_info.numpy_func(v, u, M, A).n, 23722))
# eigen test
cppyy.include(func_info.eig_file_name)
func_list = ["bool {}(){{".format(func_info.eig_test_name),
" std::vector<Eigen::Matrix<double, 3, 1> > v;",
" Eigen::Matrix<double, 3, 1> v1;"
" v1 << 1, 2, 3;",
" Eigen::Matrix<double, 3, 1> v2;"
" v2 << 3, 4, 5;",
" v.push_back(v1);",
" v.push_back(v2);",
" std::vector<Eigen::Matrix<double, 3, 1> > u;",
" Eigen::Matrix<double, 3, 1> u1;"
" u1 << 2, 1, 3;",
" Eigen::Matrix<double, 3, 1> u2;"
" u2 << 5, 8, 1;",
" u.push_back(u1);",
" u.push_back(u2);",
" std::vector<Eigen::Matrix<double, 2, 3> > M;",
" Eigen::Matrix<double, 2, 3> M1;"
" M1 << 2, 2, 1, 2, 1, 1;",
" Eigen::Matrix<double, 2, 3> M2;"
" M2 << 4, 2, 3, 3, 1, 2;",
" M.push_back(M1);",
" M.push_back(M2);",
" std::vector<double> A = {2, 6};",
" double C = {}(v, u, M, A).n;".format(func_info.eig_func_name),
" return (abs(23722 - C) < {});".format(self.eps),
"}"]
cppyy.cppdef('\n'.join(func_list))
self.assertTrue(getattr(cppyy.gbl, func_info.eig_test_name)())
def test14_virtual_dtors_and_del(self):
"""Usage of virtual destructors and Python-side del."""
import cppyy
cppyy.cppdef("""
namespace VirtualDtor {
class MyClass1 {}; // no virtual dtor ...
class MyClass2 {
public:
virtual ~MyClass2() {}
};
class MyClass3 : public MyClass2 {};
template<class T>
class MyClass4 {
public:
virtual ~MyClass4() {}
}; }
""")
VD = cppyy.gbl.VirtualDtor
try:
class MyPyDerived1(VD.MyClass1):
pass
except TypeError:
pass
else:
assert not "should have failed"
class MyPyDerived2(VD.MyClass2):
pass
d = MyPyDerived2()
del d # used to crash
# check a few more derivations that should not fail
class MyPyDerived3(VD.MyClass3):
pass
class MyPyDerived4(VD.MyClass4[int]):
pass
def test_kronecker_product_sparse_lhs(self):
la_str = """A = T ⊗ P
where
T: ℝ ^ (2×3) sparse
P: ℝ ^ (2×3): a sequence"""
func_info = self.gen_func_info(la_str)
t = [(0, 1), (1, 2)]
value = np.array([2, 5])
T = scipy.sparse.coo_matrix((value, np.asarray(t).T), shape=(2, 3))
P = np.array([[5, 6, 7], [7, 8, 9]])
t1 = [(0, 3), (0, 4), (0, 5), (1, 3), (1, 4), (1, 5), (2, 6), (2, 7),
(2, 8), (3, 6), (3, 7), (3, 8)]
value1 = np.array([10, 12, 14, 14, 16, 18, 25, 30, 35, 35, 40, 45])
A = scipy.sparse.coo_matrix((value1, np.asarray(t1).T), shape=(4, 9))
self.assertSMatrixEqual(func_info.numpy_func(T, P).A, A)
# eigen test
cppyy.include(func_info.eig_file_name)
func_list = [
"bool {}(){{".format(func_info.eig_test_name),
" std::vector<Eigen::Triplet<double> > t2;",
" t2.push_back(Eigen::Triplet<double>(0, 1, 2));",
" t2.push_back(Eigen::Triplet<double>(1, 2, 5));",
" Eigen::SparseMatrix<double> T(2, 3);",
" T.setFromTriplets(t2.begin(), t2.end());"
" Eigen::Matrix<double, 2, 3> P;", " P << 5, 6, 7, 7, 8, 9;",
" std::vector<Eigen::Triplet<double> > t1;",
" t1.push_back(Eigen::Triplet<double>(0, 3, 10));",
" t1.push_back(Eigen::Triplet<double>(0, 4, 12));",
" t1.push_back(Eigen::Triplet<double>(0, 5, 14));",
" t1.push_back(Eigen::Triplet<double>(1, 3, 14));",
" t1.push_back(Eigen::Triplet<double>(1, 4, 16));",
" t1.push_back(Eigen::Triplet<double>(1, 5, 18));",
" t1.push_back(Eigen::Triplet<double>(2, 6, 25));",
" t1.push_back(Eigen::Triplet<double>(2, 7, 30));",
" t1.push_back(Eigen::Triplet<double>(2, 8, 35));",
" t1.push_back(Eigen::Triplet<double>(3, 6, 35));",
" t1.push_back(Eigen::Triplet<double>(3, 7, 40));",
" t1.push_back(Eigen::Triplet<double>(3, 8, 45));",
" Eigen::SparseMatrix<double> A(4, 9);",
" A.setFromTriplets(t1.begin(), t1.end());"
" Eigen::SparseMatrix<double> B = {}(T, P).A;".format(
func_info.eig_func_name), " return A.isApprox(B);", "}"
]
cppyy.cppdef('\n'.join(func_list))
self.assertTrue(getattr(cppyy.gbl, func_info.eig_test_name)())
def test07_typedef_identity(self):
"""Nested typedefs should retain identity"""
import cppyy
cppyy.cppdef("""namespace PyABC {
struct S1 {};
struct S2 {
typedef std::vector<const PyABC::S1*> S1_coll;
};
}""")
from cppyy.gbl import PyABC
assert PyABC.S2.S1_coll
assert 'S1_coll' in dir(PyABC.S2)
assert not 'vector<const PyABC::S1*>' in dir(PyABC.S2)
assert PyABC.S2.S1_coll is cppyy.gbl.std.vector('const PyABC::S1*')
def test03_instance_conversion(self):
"""Proxy object conversions"""
import cppyy
cpp = cppyy.gbl
API = cpp.CPyCppyy
cppyy.cppdef("""
class APICheck2 {
public:
virtual ~APICheck2() {}
};""")
m = cpp.APICheck2()
voidp = API.Instance_AsVoidPtr(m)
m2 = API.Instance_FromVoidPtr(voidp, 'APICheck2')
assert m is m2
def test15_const_in_name(self):
"""Make sure 'const' is not erased when part of a name"""
import cppyy
cppyy.cppdef("""
struct Some0Class {} myvar0;
struct constSome1Class {} myvar1;
struct Some2Classconst {} myvar2;
struct Some_const_Class3 {} myvar3;
struct SomeconstClass4 {} myvar4;
""")
assert cppyy.gbl.myvar0
assert cppyy.gbl.myvar1
assert cppyy.gbl.myvar2
assert cppyy.gbl.myvar3
assert cppyy.gbl.myvar4
def test08_voidptr_array(self):
"""Example of access to array of void ptrs"""
import cppyy
cppyy.cppdef("""
namespace VoidPtrArray {
typedef struct _name {
_name() { p[0] = (void*)0x1; p[1] = (void*)0x2; p[2] = (void*)0x3; }
void* p[3];
} name;
}""")
n = cppyy.gbl.VoidPtrArray.name()
assert n.p[0] == 0x1
assert n.p[1] == 0x2
assert n.p[2] == 0x3
assert len(n.p) == 3
def test07_typedef_identity(self):
"""Nested typedefs should retain identity"""
import cppyy
cppyy.cppdef("""namespace PyABC {
struct S1 {};
struct S2 {
typedef std::vector<const PyABC::S1*> S1_coll;
};
}""")
from cppyy.gbl import PyABC
assert PyABC.S2.S1_coll
assert 'S1_coll' in dir(PyABC.S2)
assert not 'vector<const PyABC::S1*>' in dir(PyABC.S2)
assert PyABC.S2.S1_coll is cppyy.gbl.std.vector('const PyABC::S1*')
def test15_const_in_name(self):
"""Make sure 'const' is not erased when part of a name"""
import cppyy
cppyy.cppdef("""
struct Some0Class {} myvar0;
struct constSome1Class {} myvar1;
struct Some2Classconst {} myvar2;
struct Some_const_Class3 {} myvar3;
struct SomeconstClass4 {} myvar4;
""")
assert cppyy.gbl.myvar0
assert cppyy.gbl.myvar1
assert cppyy.gbl.myvar2
assert cppyy.gbl.myvar3
assert cppyy.gbl.myvar4
def test01_deque_byvalue_regression(self):
"""Return by value of a deque used to crash"""
import cppyy
assert cppyy.cppdef("""std::deque<long double> f() {
std::deque<long double> d; d.push_back(0); return d ; }""")
x = cppyy.gbl.f()
assert x
del x
def test04_variadic_function(self):
"""Call a variadic function"""
import cppyy
std = cppyy.gbl.std
s = std.ostringstream('(')#TODO: fails on PyPy, std.ios_base.ate)
s.seekp(1, s.cur)
# Fails; wrong overload on PyPy, none on CPython
#s << "("
cppyy.gbl.SomeNS.tuplify(s, 1, 4., "aap")
assert s.str() == "(1, 4, aap, NULL)"
cppyy.cppdef("""
template<typename... myTypes>
int test04_variadic_func() { return sizeof...(myTypes); }
""")
assert cppyy.gbl.test04_variadic_func['int', 'double', 'void*']() == 3
def try_cppyy():
import cppyy
cppyy.add_include_path("/usr/include/eigen3")
def access(cls):
cls.make_std_vector
cls.make_matrix3
t_start = time.time()
cppyy.cppdef(code)
# Access some members to try and make it even for cppyy's lazy
# instantiation.
ns = cppyy.gbl.ns
ns.ExampleClass[int]
ns.ExampleClass[float, float]
dt = time.time() - t_start
return dt
def test09_optional(self):
"""Use of optional and nullopt"""
import cppyy
if 201703 <= cppyy.gbl.gInterpreter.ProcessLine("__cplusplus;"):
assert cppyy.gbl.std.optional
assert cppyy.gbl.std.nullopt
cppyy.cppdef("""
enum Enum { A = -1 };
bool callopt(std::optional<Enum>) { return true; }
""")
a = cppyy.gbl.std.optional[cppyy.gbl.Enum]()
assert cppyy.gbl.callopt(a)
c = cppyy.gbl.nullopt
assert cppyy.gbl.callopt(c)
def test_builtin_trig_matrix_cot(self):
# space
la_str = self.import_trig + """A = cot(T)
where
T: ℝ ^ (2×2): a sequence"""
func_info = self.gen_func_info(la_str)
T = np.array([[1, 2], [3, 4]])
self.assertDMatrixEqual(func_info.numpy_func(T).A, 1 / np.tan(T))
# eigen test
cppyy.include(func_info.eig_file_name)
func_list = [
"bool {}(){{".format(func_info.eig_test_name),
" Eigen::Matrix<double, 2, 2> T;", " T << 1, 2, 4, 3;",
" Eigen::Matrix<double, 2, 2> B = {}(T).A;".format(
func_info.eig_func_name),
" return ((B - T.unaryExpr<double(*)(double)>(&std::tan).cwiseInverse()).norm() == 0);",
"}"
]
cppyy.cppdef('\n'.join(func_list))
def test04_variadic_function(self):
"""Call a variadic function"""
import cppyy
std = cppyy.gbl.std
s = std.ostringstream('(') #TODO: fails on PyPy, std.ios_base.ate)
s.seekp(1, s.cur)
# Fails; wrong overload on PyPy, none on CPython
#s << "("
cppyy.gbl.SomeNS.tuplify(s, 1, 4., "aap")
assert s.str() == "(1, 4, aap, NULL)"
cppyy.cppdef("""
template<typename... myTypes>
int test04_variadic_func() { return sizeof...(myTypes); }
""")
assert cppyy.gbl.test04_variadic_func['int', 'double', 'void*']() == 3
def test_scalar_pow(self):
la_str = """C = A^2
where
A: ℝ: a scalar"""
func_info = self.gen_func_info(la_str)
self.assertEqual(func_info.numpy_func(2).C, 4)
# MATLAB test
if TEST_MATLAB:
mat_func = getattr(mat_engine, func_info.mat_func_name, None)
self.assertEqual(np.array(mat_func(2)['C']), 4)
# eigen test
cppyy.include(func_info.eig_file_name)
func_list = [
"bool {}(){{".format(func_info.eig_test_name),
" double C = {}(2).C;".format(func_info.eig_func_name),
" return (C == 4);", "}"
]
cppyy.cppdef('\n'.join(func_list))
self.assertTrue(getattr(cppyy.gbl, func_info.eig_test_name)())
def test_scalar_norm(self):
la_str = """A = |a|
where
a: scalar"""
func_info = self.gen_func_info(la_str)
self.assertEqual(func_info.numpy_func(-2).A, 2)
# MATLAB test
if TEST_MATLAB:
mat_func = getattr(mat_engine, func_info.mat_func_name, None)
self.assertEqual(np.array(mat_func(-2)['A']), 2)
# eigen test
cppyy.include(func_info.eig_file_name)
func_list = [
"bool {}(){{".format(func_info.eig_test_name),
" double B = {}(-2).A;".format(func_info.eig_func_name),
" return (B == 2);", "}"
]
cppyy.cppdef('\n'.join(func_list))
self.assertTrue(getattr(cppyy.gbl, func_info.eig_test_name)())
def test11_vector_of_pair(self):
"""Use of std::vector<std::pair>"""
import cppyy
# after the original bug report
cppyy.cppdef("""
class PairVector {
public:
std::vector<std::pair<double, double>> vector_pair(const std::vector<std::pair<double, double>>& a) {
return a;
}
};
""")
from cppyy.gbl import PairVector
a = PairVector()
ll = [[1., 2.], [2., 3.], [3., 4.], [4., 5.]]
v = a.vector_pair(ll)
assert len(v) == 4
i = 0
for p in v:
p.first == ll[i][0]
p.second == ll[i][1]
i += 1
assert i == 4
# TODO: nicer error handling for the following (current: template compilation failure trying
# to assign a pair with <double, string> to <double, double>)
# ll2 = ll[:]
# ll2[2] = ll[2][:]
# ll2[2][1] = 'a'
# v = a.vector_pair(ll2)
ll3 = ll[:]
ll3[0] = 'a'
raises(TypeError, a.vector_pair, ll3)
ll4 = ll[:]
ll4[1] = 'a'
raises(TypeError, a.vector_pair, ll4)
def test_gallery_8(self):
# sequence
la_str = """`n(v)` = (∑_(i for i ∈ `N₁(v)`) α_i n(T_i))/||∑_(i for i ∈ `N₁(v)`) α_i n(T_i)||
where
T_i: ℝ^(3×3)
α_i: ℝ
`N₁(v)`: {ℤ}
n: ℝ^(3×3) -> ℝ^3"""
func_info = self.gen_func_info(la_str)
T = np.array([[[1, 2, 3], [4, 5, 6], [7, 8, 9]], [[10, 21, 3], [4, 5, 6], [7, 8, 9]]])
α = np.array([10, 2])
N1 = [1, 2]
n = lambda p: p[0]
B = np.array([0.38601376, 0.79776177, 0.46321651])
self.assertDMatrixApproximateEqual(func_info.numpy_func(T, α, N1, n).n_left_parenthesis_v_right_parenthesis, B)
# eigen test
cppyy.include(func_info.eig_file_name)
func_list = ["bool {}(){{".format(func_info.eig_test_name),
" std::vector<Eigen::Matrix<double, 3, 3>> T;",
" Eigen::Matrix<double, 3, 3> A1;",
" A1 << 1, 2, 3, 4, 5, 6, 7, 8, 9;",
" Eigen::Matrix<double, 3, 3> A2;",
" A2 << 10, 21, 3, 4, 5, 6, 7, 8, 9;",
" T.push_back(A1);",
" T.push_back(A2);",
" std::vector<double> α;",
" α.push_back(10);",
" α.push_back(2);",
" std::set<int > N1;",
" N1.insert(1);",
" N1.insert(2);",
" std::function<Eigen::Matrix<double, 3, 1>(Eigen::Matrix<double, 3, 3>)> n;",
" n = [](Eigen::Matrix<double, 3, 3> t)->Eigen::Matrix<double, 3, 1>{",
" return t.row(0);",
" };",
" Eigen::Matrix<double, 3, 1> B;",
" B << 0.38601376, 0.79776177, 0.46321651;",
" Eigen::Matrix<double, 3, 1> C = {}(T, α, N1, n).n_left_parenthesis_v_right_parenthesis;".format(func_info.eig_func_name),
" return ((B - C).norm() < {});".format(self.eps),
"}"]
cppyy.cppdef('\n'.join(func_list))
self.assertTrue(getattr(cppyy.gbl, func_info.eig_test_name)())
def test_gallery_12(self):
# sequence
la_str = """E = 1/`σ_N`²`E_I` + ∑_(j for j>1) α_j²/`σ_S`_j² + ∑_(j for j>1) β_j²/`σ_T`_j² + ∑_j (ρ_j-ρ̄_j)²/`σ_ρ`_j²
where
`σ_N`: ℝ
`E_I`: ℝ
α_i : ℝ
β_i : ℝ
`σ_S`_i: ℝ
`σ_T`_i: ℝ
ρ_i: ℝ
ρ̄_i: ℝ
`σ_ρ`_i: ℝ
ā_i: ℝ """
func_info = self.gen_func_info(la_str)
σ_N = 3
E_I = 4
α = np.array([1, 2, 3])
β = np.array([1, 3, 2])
σ_S = np.array([2, 2, 7])
σ_T = np.array([5, 7, 3])
ρ = np.array([10, 2, 3])
ρ̄ = np.array([5, 2, 7])
σ_ρ = np.array([2, 3, 5])
ā = np.array([3, 1, 8])
self.assertTrue(np.isclose(func_info.numpy_func(σ_N, E_I, α, β, σ_S, σ_T, ρ, ρ̄, σ_ρ, ā).E, 9.146235827664398))
# eigen test
cppyy.include(func_info.eig_file_name)
func_list = ["bool {}(){{".format(func_info.eig_test_name),
" std::vector<double> α = {1, 2, 3};",
" std::vector<double> β = {1, 3, 2};",
" std::vector<double> σ_S = {2, 2, 7};",
" std::vector<double> σ_T = {5, 7, 3};",
" std::vector<double> ρ = {10, 2, 3};",
" std::vector<double> ρ̄ = {5, 2, 7};",
" std::vector<double> σ_ρ = {2, 3, 5};",
" std::vector<double> ā = {3, 1, 8};",
" double C = {}(3, 4, α, β, σ_S, σ_T, ρ, ρ̄, σ_ρ, ā).E;".format(func_info.eig_func_name),
" return (abs(9.146235827664398 - C) < {});".format(self.eps),
"}"]
cppyy.cppdef('\n'.join(func_list))
self.assertTrue(getattr(cppyy.gbl, func_info.eig_test_name)())
def test05_default_template_arguments(self):
"""Calling a templated method on a templated class with all defaults used to crash."""
import cppyy
cppyy.cppdef("""
template<typename T>
class AllDefault {
public:
AllDefault(int val) : m_t(val) {}
template<int aap=1, int noot=2>
int do_stuff() { return m_t+aap+noot; }
public:
T m_t;
};""")
a = cppyy.gbl.AllDefault[int](24)
a.m_t = 21;
assert a.do_stuff() == 24
def test08_using_of_static_data(self):
"""Derived class using static data of base"""
import cppyy
# TODO: the following should live in templates.h, but currently fails
# in TClass::GetListOfMethods()
cppyy.cppdef("""
template <typename T> struct BaseClassWithStatic {
static T const ref_value;
};
template <typename T>
T const BaseClassWithStatic<T>::ref_value = 42;
template <typename T>
struct DerivedClassUsingStatic : public BaseClassWithStatic<T> {
using BaseClassWithStatic<T>::ref_value;
explicit DerivedClassUsingStatic(T x) : BaseClassWithStatic<T>() {
m_value = x > ref_value ? ref_value : x;
}
T m_value;
};""")
# TODO: the ref_value property is inaccessible (offset == -1)
# assert cppyy.gbl.BaseClassWithStatic["size_t"].ref_value == 42
b1 = cppyy.gbl.DerivedClassUsingStatic["size_t"]( 0)
b2 = cppyy.gbl.DerivedClassUsingStatic["size_t"](100)
# assert b1.ref_value == 42
assert b1.m_value == 0
# assert b2.ref_value == 42
assert b2.m_value == 42
def test11_template_aliases(self):
"""Access to templates made available with 'using'"""
import cppyy
# through dictionary
davec = cppyy.gbl.DA_vector["float"]()
davec += range(10)
assert davec[5] == 5
# through interpreter
cppyy.cppdef("template<typename T> using IA_vector = std::vector<T>;")
iavec = cppyy.gbl.IA_vector["float"]()
iavec += range(10)
assert iavec[5] == 5
# with variadic template
if cppyy.gbl.gInterpreter.ProcessLine("__cplusplus;") > 201402:
assert cppyy.gbl.using_problem.matryoshka[int, 3].type
assert cppyy.gbl.using_problem.matryoshka[int, 3, 4].type
assert cppyy.gbl.using_problem.make_vector[int , 3]
assert cppyy.gbl.using_problem.make_vector[int , 3]().m_val == 3
assert cppyy.gbl.using_problem.make_vector[int , 4]().m_val == 4
def test03_pyfunc_doc(self):
"""Help on a generated pyfunc used to crash."""
import cppyy, distutils, pydoc, sys
cppyy.add_include_path(distutils.sysconfig_get_python_inc())
if sys.hexversion < 0x3000000:
cppyy.cppdef("#undef _POSIX_C_SOURCE")
cppyy.cppdef("#undef _XOPEN_SOURCE")
else:
cppyy.cppdef("#undef slots") # potentially pulled in by Qt/xapian.h
cppyy.cppdef("""#include "Python.h"
long py2long(PyObject* obj) { return PyLong_AsLong(obj); }""")
pydoc.doc(cppyy.gbl.py2long)
assert 1 == cppyy.gbl.py2long(1)
def test04_avx(self):
"""Test usability of AVX by default."""
import cppyy, subprocess
has_avx = False
try:
for line in open('/proc/cpuinfo', 'r'):
if 'avx' in line:
has_avx = True
break
except Exception:
try:
cli_arg = subprocess.check_output(['sysctl', 'machdep.cpu.features'])
has_avx = 'avx' in cli_arg.decode("utf-8").strip().lower()
except Exception:
pass
if has_avx:
assert cppyy.cppdef('int check_avx() { return (int) __AVX__; }')
assert cppyy.gbl.check_avx() # attribute error if compilation failed
def setup_class(cls):
import cppyy
cppyy.cppdef("""
#include <cmath>
#include <iostream>
#include <vector>
//-----
unsigned int gUint = 0;
//-----
class Abstract {
public:
virtual ~Abstract() {}
virtual void abstract_method() = 0;
virtual void concrete_method() = 0;
};
void Abstract::concrete_method() {
std::cout << "called Abstract::concrete_method" << std::endl;
}
//-----
class Concrete : Abstract {
public:
Concrete(int n=42) : m_int(n), m_const_int(17) {}
~Concrete() {}
virtual void abstract_method() {
std::cout << "called Concrete::abstract_method" << std::endl;
}
virtual void concrete_method() {
std::cout << "called Concrete::concrete_method" << std::endl;
}
void array_method(int* ad, int size) {
for (int i=0; i < size; ++i)
std::cout << ad[i] << ' ';
std::cout << std::endl;
}
void array_method(double* ad, int size) {
for (int i=0; i < size; ++i)
std::cout << ad[i] << ' ';
std::cout << std::endl;
}
Abstract* show_autocast() {
return this;
}
operator const char*() {
return "Hello operator const char*!";
}
public:
double m_data[4];
int m_int;
const int m_const_int;
};
//-----
int global_function(int) {
return 42;
}
double global_function(double) {
return std::exp(1);
}
//-----
namespace Namespace {
class Concrete {
public:
class NestedClass {
public:
std::vector<int> m_v;
};
};
int global_function(int i) {
return 2*::global_function(i);
}
double global_function(double d) {
return 2*::global_function(d);
}
} // namespace Namespace
""")
def setup_class(cls):
import cppyy
# touch __version__ as a test
assert hasattr(cppyy, '__version__')
cppyy.cppdef("""
#include <cmath>
#include <iostream>
#include <vector>
//-----
unsigned int gUint = 0;
//-----
class Abstract {
public:
virtual ~Abstract() {}
virtual std::string abstract_method() = 0;
virtual void concrete_method() = 0;
};
void Abstract::concrete_method() {
std::cout << "called Abstract::concrete_method" << std::endl;
}
//-----
class Concrete : Abstract {
public:
Concrete(int n=42) : m_int(n), m_const_int(17) {}
~Concrete() {}
virtual std::string abstract_method() {
return "called Concrete::abstract_method";
}
virtual void concrete_method() {
std::cout << "called Concrete::concrete_method" << std::endl;
}
void array_method(int* ad, int size) {
for (int i=0; i < size; ++i)
std::cerr << ad[i] << ' ';
std::cerr << std::endl;
}
void array_method(double* ad, int size) {
for (int i=0; i < size; ++i)
std::cerr << ad[i] << ' ';
std::cerr << std::endl;
}
void uint_ref_assign(unsigned int& target, unsigned int value) {
target = value;
}
Abstract* show_autocast() {
return this;
}
operator const char*() {
return "Hello operator const char*!";
}
public:
double m_data[4];
int m_int;
const int m_const_int;
static int s_int;
};
typedef Concrete Concrete_t;
int Concrete::s_int = 321;
std::string call_abstract_method(Abstract* a) {
return a->abstract_method();
}
//-----
int global_function(int) {
return 42;
}
double global_function(double) {
return std::exp(1);
}
int call_int_int(int (*f)(int, int), int i1, int i2) {
return f(i1, i2);
}
//-----
namespace Namespace {
class Concrete {
public:
class NestedClass {
public:
std::vector<int> m_v;
};
};
int global_function(int i) {
return 2*::global_function(i);
}
double global_function(double d) {
return 2*::global_function(d);
}
} // namespace Namespace
""")