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-rw-r--r--numpy/core/include/numpy/npy_3kcompat.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/numpy/core/include/numpy/npy_3kcompat.h b/numpy/core/include/numpy/npy_3kcompat.h
index 4bc06fc96..191cd244f 100644
--- a/numpy/core/include/numpy/npy_3kcompat.h
+++ b/numpy/core/include/numpy/npy_3kcompat.h
@@ -28,6 +28,30 @@ extern "C" {
* PyInt -> PyLong
*/
+
+/*
+ * This is a renamed copy of the Python non-limited API function _PyLong_AsInt. It is
+ * included here because it is missing from the PyPy API. It completes the PyLong_As*
+ * group of functions and can be useful in replacing PyInt_Check.
+ */
+static NPY_INLINE int
+Npy__PyLong_AsInt(PyObject *obj)
+{
+ int overflow;
+ long result = PyLong_AsLongAndOverflow(obj, &overflow);
+
+ /* INT_MAX and INT_MIN are defined in Python.h */
+ if (overflow || result > INT_MAX || result < INT_MIN) {
+ /* XXX: could be cute and give a different
+ message for overflow == -1 */
+ PyErr_SetString(PyExc_OverflowError,
+ "Python int too large to convert to C int");
+ return -1;
+ }
+ return (int)result;
+}
+
+
#if defined(NPY_PY3K)
/* Return True only if the long fits in a C long */
static NPY_INLINE int PyInt_Check(PyObject *op) {
@@ -39,6 +63,7 @@ static NPY_INLINE int PyInt_Check(PyObject *op) {
return (overflow == 0);
}
+
#define PyInt_FromLong PyLong_FromLong
#define PyInt_AsLong PyLong_AsLong
#define PyInt_AS_LONG PyLong_AsLong