148 lines
4.5 KiB
C
148 lines
4.5 KiB
C
#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <assert.h>
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#include "nlr.h"
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#include "misc.h"
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#include "mpconfig.h"
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#include "qstr.h"
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#include "obj.h"
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#include "runtime0.h"
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#include "map.h"
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#if MICROPY_ENABLE_FLOAT
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typedef struct _mp_obj_complex_t {
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mp_obj_base_t base;
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mp_float_t real;
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mp_float_t imag;
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} mp_obj_complex_t;
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mp_obj_t mp_obj_new_complex(mp_float_t real, mp_float_t imag);
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void complex_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t o_in, mp_print_kind_t kind) {
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mp_obj_complex_t *o = o_in;
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if (o->real == 0) {
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print(env, "%.8gj", (double) o->imag);
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} else {
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print(env, "(%.8g+%.8gj)", (double) o->real, (double) o->imag);
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}
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}
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static mp_obj_t complex_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp_obj_t *args) {
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// TODO check n_kw == 0
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switch (n_args) {
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case 0:
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return mp_obj_new_complex(0, 0);
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case 1:
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// TODO allow string as first arg and parse it
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if (MP_OBJ_IS_TYPE(args[0], &complex_type)) {
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return args[0];
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} else {
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return mp_obj_new_complex(mp_obj_get_float(args[0]), 0);
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}
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case 2:
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{
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mp_float_t real, imag;
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if (MP_OBJ_IS_TYPE(args[0], &complex_type)) {
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mp_obj_complex_get(args[0], &real, &imag);
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} else {
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real = mp_obj_get_float(args[0]);
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imag = 0;
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}
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if (MP_OBJ_IS_TYPE(args[1], &complex_type)) {
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mp_float_t real2, imag2;
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mp_obj_complex_get(args[1], &real2, &imag2);
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real -= imag2;
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imag += real2;
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} else {
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imag += mp_obj_get_float(args[1]);
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}
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return mp_obj_new_complex(real, imag);
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}
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default:
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nlr_jump(mp_obj_new_exception_msg_1_arg(MP_QSTR_TypeError, "complex takes at most 2 arguments, %d given", (void*)(machine_int_t)n_args));
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}
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}
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static mp_obj_t complex_unary_op(int op, mp_obj_t o_in) {
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mp_obj_complex_t *o = o_in;
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switch (op) {
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case RT_UNARY_OP_BOOL: return MP_BOOL(o->real != 0 || o->imag != 0);
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case RT_UNARY_OP_POSITIVE: return o_in;
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case RT_UNARY_OP_NEGATIVE: return mp_obj_new_complex(-o->real, -o->imag);
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default: return MP_OBJ_NULL; // op not supported
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}
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}
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static mp_obj_t complex_binary_op(int op, mp_obj_t lhs_in, mp_obj_t rhs_in) {
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mp_obj_complex_t *lhs = lhs_in;
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return mp_obj_complex_binary_op(op, lhs->real, lhs->imag, rhs_in);
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}
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const mp_obj_type_t complex_type = {
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{ &mp_const_type },
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"complex",
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.print = complex_print,
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.make_new = complex_make_new,
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.unary_op = complex_unary_op,
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.binary_op = complex_binary_op,
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};
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mp_obj_t mp_obj_new_complex(mp_float_t real, mp_float_t imag) {
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mp_obj_complex_t *o = m_new_obj(mp_obj_complex_t);
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o->base.type = &complex_type;
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o->real = real;
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o->imag = imag;
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return o;
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}
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void mp_obj_complex_get(mp_obj_t self_in, mp_float_t *real, mp_float_t *imag) {
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assert(MP_OBJ_IS_TYPE(self_in, &complex_type));
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mp_obj_complex_t *self = self_in;
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*real = self->real;
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*imag = self->imag;
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}
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mp_obj_t mp_obj_complex_binary_op(int op, mp_float_t lhs_real, mp_float_t lhs_imag, mp_obj_t rhs_in) {
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mp_float_t rhs_real, rhs_imag;
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mp_obj_get_complex(rhs_in, &rhs_real, &rhs_imag); // can be any type, this function will convert to float (if possible)
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switch (op) {
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case RT_BINARY_OP_ADD:
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case RT_BINARY_OP_INPLACE_ADD:
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lhs_real += rhs_real;
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lhs_imag += rhs_imag;
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break;
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case RT_BINARY_OP_SUBTRACT:
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case RT_BINARY_OP_INPLACE_SUBTRACT:
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lhs_real -= rhs_real;
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lhs_imag -= rhs_imag;
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break;
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case RT_BINARY_OP_MULTIPLY:
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case RT_BINARY_OP_INPLACE_MULTIPLY:
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{
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mp_float_t real = lhs_real * rhs_real - lhs_imag * rhs_imag;
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lhs_imag = lhs_real * rhs_imag + lhs_imag * rhs_real;
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lhs_real = real;
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break;
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}
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/* TODO floor(?) the value
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case RT_BINARY_OP_FLOOR_DIVIDE:
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case RT_BINARY_OP_INPLACE_FLOOR_DIVIDE: val = lhs_val / rhs_val; break;
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*/
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/* TODO
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case RT_BINARY_OP_TRUE_DIVIDE:
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case RT_BINARY_OP_INPLACE_TRUE_DIVIDE: val = lhs_val / rhs_val; break;
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*/
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return NULL; // op not supported
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}
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return mp_obj_new_complex(lhs_real, lhs_imag);
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}
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#endif
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