gh-106023: Remove _PY_FASTCALL_SMALL_STACK constant (#106258)
Remove _PY_FASTCALL_SMALL_STACK constant from the C API: move it to
the internal C API (pycore_call.h).
diff --git a/Include/cpython/abstract.h b/Include/cpython/abstract.h
index 2e76ff4..d563d1b 100644
--- a/Include/cpython/abstract.h
+++ b/Include/cpython/abstract.h
@@ -2,19 +2,6 @@
# error "this header file must not be included directly"
#endif
-/* === Object Protocol ================================================== */
-
-/* Suggested size (number of positional arguments) for arrays of PyObject*
- allocated on a C stack to avoid allocating memory on the heap memory. Such
- array is used to pass positional arguments to call functions of the
- PyObject_Vectorcall() family.
-
- The size is chosen to not abuse the C stack and so limit the risk of stack
- overflow. The size is also chosen to allow using the small stack for most
- function calls of the Python standard library. On 64-bit CPU, it allocates
- 40 bytes on the stack. */
-#define _PY_FASTCALL_SMALL_STACK 5
-
/* === Vectorcall protocol (PEP 590) ============================= */
// PyVectorcall_NARGS() is exported as a function for the stable ABI.
diff --git a/Include/internal/pycore_call.h b/Include/internal/pycore_call.h
index 3caf504..66434cc 100644
--- a/Include/internal/pycore_call.h
+++ b/Include/internal/pycore_call.h
@@ -10,6 +10,18 @@ extern "C" {
#include "pycore_pystate.h" // _PyThreadState_GET()
+/* Suggested size (number of positional arguments) for arrays of PyObject*
+ allocated on a C stack to avoid allocating memory on the heap memory. Such
+ array is used to pass positional arguments to call functions of the
+ PyObject_Vectorcall() family.
+
+ The size is chosen to not abuse the C stack and so limit the risk of stack
+ overflow. The size is also chosen to allow using the small stack for most
+ function calls of the Python standard library. On 64-bit CPU, it allocates
+ 40 bytes on the stack. */
+#define _PY_FASTCALL_SMALL_STACK 5
+
+
// Export for shared stdlib extensions like the math extension,
// function used via inlined _PyObject_VectorcallTstate() function.
PyAPI_FUNC(PyObject*) _Py_CheckFunctionResult(
