Fixed broken math functions that return bool and added some more.

py/builtinmath.c

@@ -9,6 +9,7 @@
 
 #if MICROPY_ENABLE_FLOAT
 
+//TODO: Change macros to check for overflow and raise OverflowError or RangeError
 #define MATH_FUN_1(py_name, c_name) \
     mp_obj_t mp_math_ ## py_name(mp_obj_t x_obj) { return mp_obj_new_float(MICROPY_FLOAT_C_FUN(c_name)(mp_obj_get_float(x_obj))); } \
     STATIC MP_DEFINE_CONST_FUN_OBJ_1(mp_math_## py_name ## _obj, mp_math_ ## py_name);
@@ -17,6 +18,10 @@
     mp_obj_t mp_math_ ## py_name(mp_obj_t x_obj, mp_obj_t y_obj) { return mp_obj_new_float(MICROPY_FLOAT_C_FUN(c_name)(mp_obj_get_float(x_obj), mp_obj_get_float(y_obj))); } \
     STATIC MP_DEFINE_CONST_FUN_OBJ_2(mp_math_## py_name ## _obj, mp_math_ ## py_name);
 
+#define MATH_FUN_BOOL1(py_name, c_name) \
+    mp_obj_t mp_math_ ## py_name(mp_obj_t x_obj) { return MP_BOOL(c_name(mp_obj_get_float(x_obj))); } \
+    STATIC MP_DEFINE_CONST_FUN_OBJ_1(mp_math_## py_name ## _obj, mp_math_ ## py_name);
+
 STATIC const mp_obj_float_t mp_math_e_obj = {{&mp_type_float}, M_E};
 STATIC const mp_obj_float_t mp_math_pi_obj = {{&mp_type_float}, M_PI};
 
@@ -45,13 +50,49 @@ MATH_FUN_2(copysign, copysign)
 MATH_FUN_1(fabs, fabs)
 MATH_FUN_1(floor, floor) //TODO: delegate to x.__floor__() if x is not a float
 MATH_FUN_2(fmod, fmod)
-//MATH_FUN_1(frexp, frexp)
-//MATH_FUN_1(isfinite, isfinite)
-//MATH_FUN_1(isinf, isinf)
-//MATH_FUN_1(isnan, isnan)
+MATH_FUN_BOOL1(isfinite, isfinite)
+MATH_FUN_BOOL1(isinf, isinf)
+MATH_FUN_BOOL1(isnan, isnan)
 MATH_FUN_1(trunc, trunc)
+MATH_FUN_2(ldexp, ldexp)
+MATH_FUN_1(erf, erf)
+MATH_FUN_1(erfc, erfc)
+MATH_FUN_1(gamma, gamma)
+MATH_FUN_1(lgamma, lgamma)
+//TODO: factorial, fsum
+
+// Functions that return a tuple
+mp_obj_t mp_math_frexp(mp_obj_t x_obj){
+  machine_int_t int_exponent = 0;
+  mp_float_t significand = frexp(mp_obj_get_float(x_obj), &int_exponent);
+  mp_obj_t tuple[2];
+  tuple[0] = mp_obj_new_float(significand);
+  tuple[1] = mp_obj_new_int(int_exponent);
+  return mp_obj_new_tuple(2, tuple);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(mp_math_frexp_obj, mp_math_frexp);
+
+mp_obj_t mp_math_modf(mp_obj_t x_obj){
+  mp_float_t int_part = 0.0;
+  mp_float_t fractional_part = modf(mp_obj_get_float(x_obj), &int_part);
+  mp_obj_t tuple[2];
+  tuple[0] = mp_obj_new_float(fractional_part);
+  tuple[1] = mp_obj_new_float(int_part);
+  return mp_obj_new_tuple(2, tuple);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(mp_math_modf_obj, mp_math_modf);
+
+// Angular conversions
+mp_obj_t mp_math_radians(mp_obj_t x_obj){
+  return mp_obj_new_float(mp_obj_get_float(x_obj) * M_PI / 180.0);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(mp_math_radians_obj, mp_math_radians);
+
+mp_obj_t mp_math_degrees(mp_obj_t x_obj){
+  return mp_obj_new_float(mp_obj_get_float(x_obj) * 180.0 / M_PI);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(mp_math_degrees_obj, mp_math_degrees);
 
-//TODO: factorial, fsum, frexp, ldexp, modf
 
 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) },
@@ -81,12 +122,19 @@ STATIC const mp_map_elem_t mp_module_math_globals_table[] = {
     { MP_OBJ_NEW_QSTR(MP_QSTR_copysign), (mp_obj_t)&mp_math_copysign_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_fabs), (mp_obj_t)&mp_math_fabs_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_floor), (mp_obj_t)&mp_math_floor_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_fmod), (mp_obj_t)&mp_math_fmod_obj },
-    //{ MP_OBJ_NEW_QSTR(MP_QSTR_frexp), (mp_obj_t)&mp_math_frexp_obj },
-    //{ MP_OBJ_NEW_QSTR(MP_QSTR_isfinite), (mp_obj_t)&mp_math_isfinite_obj },
-    //{ MP_OBJ_NEW_QSTR(MP_QSTR_isinf), (mp_obj_t)&mp_math_isinf_obj },
-    //{ MP_OBJ_NEW_QSTR(MP_QSTR_isnan), (mp_obj_t)&mp_math_isnan_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_frexp), (mp_obj_t)&mp_math_frexp_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_ldexp), (mp_obj_t)&mp_math_ldexp_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_modf), (mp_obj_t)&mp_math_modf_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_isfinite), (mp_obj_t)&mp_math_isfinite_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_isinf), (mp_obj_t)&mp_math_isinf_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_isnan), (mp_obj_t)&mp_math_isnan_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_trunc), (mp_obj_t)&mp_math_trunc_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_radians), (mp_obj_t)&mp_math_radians_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_degrees), (mp_obj_t)&mp_math_degrees_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_erf), (mp_obj_t)&mp_math_erf_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_erfc), (mp_obj_t)&mp_math_erfc_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_gamma), (mp_obj_t)&mp_math_gamma_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_lgamma), (mp_obj_t)&mp_math_lgamma_obj },
 };
 
 STATIC const mp_map_t mp_module_math_globals = {

py/qstrdefs.h

@@ -145,13 +145,21 @@ Q(atan2)
 Q(ceil)
 Q(copysign)
 Q(fabs)
-Q(floor)
 Q(fmod)
-Q(frexp)
+Q(floor)
 Q(isfinite)
 Q(isinf)
 Q(isnan)
 Q(trunc)
+Q(modf)
+Q(frexp)
+Q(ldexp)
+Q(degrees)
+Q(radians)
+Q(erf)
+Q(erfc)
+Q(gamma)
+Q(lgamma)
 
 Q(mem_total)
 Q(mem_current)

tests/basics/math-fun-bool.py

+# Test the bool functions from math
+
+from math import isfinite, isnan, isinf
+
+test_values = [1, 0, -1, 1.0, 0.0, -1.0, float('NaN'), float('Inf'), 
+               -float('NaN'), -float('Inf')]
+
+functions = [isfinite, isnan, isinf]
+
+for val in test_values:
+    for f in functions:
+        print(f(val))

tests/basics/math-fun.py

@@ -5,8 +5,6 @@ from math import *
 test_values = [-100., -1.23456, -1, -0.5, 0.0, 0.5, 1.23456, 100.]
 p_test_values = [0.1, 0.5, 1.23456]
 unit_range_test_values = [-1., -0.75, -0.5, -0.25, 0., 0.25, 0.5, 0.75, 1.]
-#IEEE_test_values = [1, 0, float('NaN'), float('Inf'), -float('NaN'), -float('Inf')]
-#TODO: float('NaN')
 
 functions = [(sqrt, p_test_values),
              (exp, test_values),
@@ -30,7 +28,6 @@ functions = [(sqrt, p_test_values),
              (fabs, test_values),
              (floor, test_values),
              #(frexp, test_values),
-             #(isfinite, [1, 0, float('NaN'), float('Inf')])
              (trunc, test_values)
             ]
 
@@ -42,8 +39,8 @@ binary_functions = [(copysign, [(23., 42.), (-23., 42.), (23., -42.),
                                 (-23., -42.), (1., 0.0), (1., -0.0)])
                    ]
 
-#for function, test_vals in binary_functions:
-#    for value1, value2 in test_vals:
-#        print("{:8.7f}".format(function(value1, value2)))
+for function, test_vals in binary_functions:
+    for value1, value2 in test_vals:
+        print("{:8.7f}".format(function(value1, value2)))