py: Move float e/pi consts to objfloat and make mp_obj_float_t private.

py/modcmath.c

@@ -35,12 +35,6 @@
 /// The `cmath` module provides some basic mathematical funtions for
 /// working with complex numbers.
 
-// These are defined in modmath.c
-/// \constant e - base of the natural logarithm
-extern const mp_obj_float_t mp_math_e_obj;
-/// \constant pi - the ratio of a circle's circumference to its diameter
-extern const mp_obj_float_t mp_math_pi_obj;
-
 /// \function phase(z)
 /// Returns the phase of the number `z`, in the range (-pi, +pi].
 STATIC mp_obj_t mp_cmath_phase(mp_obj_t z_obj) {
@@ -132,8 +126,8 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_1(mp_cmath_sin_obj, mp_cmath_sin);
 
 STATIC const mp_map_elem_t mp_module_cmath_globals_table[] = {
     { MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_cmath) },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_e), (mp_obj_t)&mp_math_e_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_pi), (mp_obj_t)&mp_math_pi_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_e), mp_const_float_e },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_pi), mp_const_float_pi },
     { MP_OBJ_NEW_QSTR(MP_QSTR_phase), (mp_obj_t)&mp_cmath_phase_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_polar), (mp_obj_t)&mp_cmath_polar_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_rect), (mp_obj_t)&mp_cmath_rect_obj },

py/modmath.c

@@ -52,12 +52,6 @@
     STATIC mp_obj_t mp_math_ ## py_name(mp_obj_t x_obj) { mp_int_t x = MICROPY_FLOAT_C_FUN(c_name)(mp_obj_get_float(x_obj)); return mp_obj_new_int(x); } \
     STATIC MP_DEFINE_CONST_FUN_OBJ_1(mp_math_## py_name ## _obj, mp_math_ ## py_name);
 
-// These are also used by cmath.c
-/// \constant e - base of the natural logarithm
-const mp_obj_float_t mp_math_e_obj = {{&mp_type_float}, M_E};
-/// \constant pi - the ratio of a circle's circumference to its diameter
-const mp_obj_float_t mp_math_pi_obj = {{&mp_type_float}, M_PI};
-
 /// \function sqrt(x)
 /// Returns the square root of `x`.
 MATH_FUN_1(sqrt, sqrt)
@@ -188,8 +182,8 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_1(mp_math_degrees_obj, mp_math_degrees);
 
 STATIC const mp_map_elem_t mp_module_math_globals_table[] = {
     { MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_math) },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_e), (mp_obj_t)&mp_math_e_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_pi), (mp_obj_t)&mp_math_pi_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_e), mp_const_float_e },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_pi), mp_const_float_pi },
     { MP_OBJ_NEW_QSTR(MP_QSTR_sqrt), (mp_obj_t)&mp_math_sqrt_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_pow), (mp_obj_t)&mp_math_pow_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_exp), (mp_obj_t)&mp_math_exp_obj },

py/obj.h

@@ -564,10 +564,11 @@ void mp_str_print_quoted(const mp_print_t *print, const byte *str_data, mp_uint_
 
 #if MICROPY_PY_BUILTINS_FLOAT
 // float
-typedef struct _mp_obj_float_t {
-    mp_obj_base_t base;
-    mp_float_t value;
-} mp_obj_float_t;
+#define mp_const_float_e ((mp_obj_t)&mp_const_float_e_obj)
+#define mp_const_float_pi ((mp_obj_t)&mp_const_float_pi_obj)
+extern const struct _mp_obj_float_t mp_const_float_e_obj;
+extern const struct _mp_obj_float_t mp_const_float_pi_obj;
+
 #define mp_obj_is_float(o) MP_OBJ_IS_TYPE((o), &mp_type_float)
 mp_float_t mp_obj_float_get(mp_obj_t self_in);
 mp_obj_t mp_obj_float_binary_op(mp_uint_t op, mp_float_t lhs_val, mp_obj_t rhs); // can return MP_OBJ_NULL if op not supported

py/objfloat.c

@@ -39,6 +39,14 @@
 #include <math.h>
 #include "py/formatfloat.h"
 
+typedef struct _mp_obj_float_t {
+    mp_obj_base_t base;
+    mp_float_t value;
+} mp_obj_float_t;
+
+const mp_obj_float_t mp_const_float_e_obj = {{&mp_type_float}, M_E};
+const mp_obj_float_t mp_const_float_pi_obj = {{&mp_type_float}, M_PI};
+
 STATIC void float_print(const mp_print_t *print, mp_obj_t o_in, mp_print_kind_t kind) {
     (void)kind;
     mp_obj_float_t *o = o_in;