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The C and C++ Include Header Files

cat -n /usr/include/python3.14/internal/pycore_complexobject.h

     1	#ifndef Py_INTERNAL_COMPLEXOBJECT_H
     2	#define Py_INTERNAL_COMPLEXOBJECT_H
     3	#ifdef __cplusplus
     4	extern "C" {
     5	#endif
     6	
     7	#ifndef Py_BUILD_CORE
     8	#  error "this header requires Py_BUILD_CORE define"
     9	#endif
    10	
    11	#include "pycore_unicodeobject.h" // _PyUnicodeWriter
    12	
    13	/* Format the object based on the format_spec, as defined in PEP 3101
    14	   (Advanced String Formatting). */
    15	extern int _PyComplex_FormatAdvancedWriter(
    16	    _PyUnicodeWriter *writer,
    17	    PyObject *obj,
    18	    PyObject *format_spec,
    19	    Py_ssize_t start,
    20	    Py_ssize_t end);
    21	
    22	// Operations on complex numbers.
    23	PyAPI_FUNC(Py_complex) _Py_cr_sum(Py_complex, double);
    24	PyAPI_FUNC(Py_complex) _Py_cr_diff(Py_complex, double);
    25	PyAPI_FUNC(Py_complex) _Py_rc_diff(double, Py_complex);
    26	PyAPI_FUNC(Py_complex) _Py_cr_prod(Py_complex, double);
    27	PyAPI_FUNC(Py_complex) _Py_cr_quot(Py_complex, double);
    28	PyAPI_FUNC(Py_complex) _Py_rc_quot(double, Py_complex);
    29	
    30	
    31	#ifdef __cplusplus
    32	}
    33	#endif
    34	#endif  // !Py_INTERNAL_COMPLEXOBJECT_H