cpython/Include/pystrtod.h

#ifndef Py_STRTOD_H
#define Py_STRTOD_H

#ifdef __cplusplus
extern "C" {
#endif


PyAPI_FUNC(double) PyOS_string_to_double(const char *str,
                                         char **endptr,
                                         PyObject *overflow_exception);

/* The caller is responsible for calling PyMem_Free to free the buffer
   that's is returned. */
PyAPI_FUNC(char *) PyOS_double_to_string(double val,
                                         char format_code,
                                         int precision,
                                         int flags,
                                         int *type);

/* PyOS_double_to_string's "flags" parameter can be set to 0 or more of: */
#define Py_DTSF_SIGN
#define Py_DTSF_ADD_DOT_0
#define Py_DTSF_ALT
#define Py_DTSF_NO_NEG_0

/* PyOS_double_to_string's "type", if non-NULL, will be set to one of: */
#define Py_DTST_FINITE
#define Py_DTST_INFINITE
#define Py_DTST_NAN

#ifdef __cplusplus
}
#endif

#endif /* !Py_STRTOD_H */