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d91cc9db15
Disable pedantic check for c++03 (unlimited API) Also add a check for c++03 *limited* API, which passes in pedantic mode after removing a comma in the `PySendResult` declaration, and allowing `long long`.
102 lines
2.2 KiB
C
102 lines
2.2 KiB
C
// gh-116869: Basic C test extension to check that the Python C API
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// does not emit C compiler warnings.
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// Always enable assertions
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#undef NDEBUG
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#include "Python.h"
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#ifndef MODULE_NAME
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# error "MODULE_NAME macro must be defined"
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#endif
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#define _STR(NAME) #NAME
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#define STR(NAME) _STR(NAME)
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PyDoc_STRVAR(_testcext_add_doc,
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"add(x, y)\n"
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"\n"
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"Return the sum of two integers: x + y.");
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static PyObject *
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_testcext_add(PyObject *Py_UNUSED(module), PyObject *args)
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{
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long i, j, res;
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if (!PyArg_ParseTuple(args, "ll:foo", &i, &j)) {
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return NULL;
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}
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res = i + j;
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return PyLong_FromLong(res);
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}
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static PyMethodDef _testcext_methods[] = {
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{"add", _testcext_add, METH_VARARGS, _testcext_add_doc},
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{NULL, NULL, 0, NULL} // sentinel
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};
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static int
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_testcext_exec(
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#ifdef __STDC_VERSION__
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PyObject *module
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#else
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PyObject *Py_UNUSED(module)
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#endif
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)
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{
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#ifdef __STDC_VERSION__
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if (PyModule_AddIntMacro(module, __STDC_VERSION__) < 0) {
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return -1;
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}
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#endif
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// test Py_BUILD_ASSERT() and Py_BUILD_ASSERT_EXPR()
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Py_BUILD_ASSERT(sizeof(int) == sizeof(unsigned int));
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assert(Py_BUILD_ASSERT_EXPR(sizeof(int) == sizeof(unsigned int)) == 0);
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return 0;
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}
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// Converting from function pointer to void* has undefined behavior, but
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// works on all known platforms, and CPython's module and type slots currently
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// need it.
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// (GCC doesn't have a narrower category for this than -Wpedantic.)
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_Py_COMP_DIAG_PUSH
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#if defined(__GNUC__)
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#pragma GCC diagnostic ignored "-Wpedantic"
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#elif defined(__clang__)
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#pragma clang diagnostic ignored "-Wpedantic"
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#endif
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static PyModuleDef_Slot _testcext_slots[] = {
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{Py_mod_exec, (void*)_testcext_exec},
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{0, NULL}
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};
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_Py_COMP_DIAG_POP
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PyDoc_STRVAR(_testcext_doc, "C test extension.");
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static struct PyModuleDef _testcext_module = {
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PyModuleDef_HEAD_INIT, // m_base
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STR(MODULE_NAME), // m_name
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_testcext_doc, // m_doc
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0, // m_size
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_testcext_methods, // m_methods
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_testcext_slots, // m_slots
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NULL, // m_traverse
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NULL, // m_clear
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NULL, // m_free
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};
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#define _FUNC_NAME(NAME) PyInit_ ## NAME
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#define FUNC_NAME(NAME) _FUNC_NAME(NAME)
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PyMODINIT_FUNC
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FUNC_NAME(MODULE_NAME)(void)
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{
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return PyModuleDef_Init(&_testcext_module);
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}
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