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Copy pathobjint_longlong.c
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308 lines (277 loc) · 9.86 KB
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/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 Damien P. George
* Copyright (c) 2014 Paul Sokolovsky
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdlib.h>
#include <string.h>
#include "py/nlr.h"
#include "py/smallint.h"
#include "py/objint.h"
#include "py/runtime0.h"
#include "py/runtime.h"
#if MICROPY_PY_BUILTINS_FLOAT
#include <math.h>
#endif
#if MICROPY_LONGINT_IMPL == MICROPY_LONGINT_IMPL_LONGLONG
// Python3 no longer has "l" suffix for long ints. We allow to use it
// for debugging purpose though.
#ifdef DEBUG
#define SUFFIX "l"
#else
#define SUFFIX ""
#endif
#if MICROPY_PY_SYS_MAXSIZE
// Export value for sys.maxsize
const mp_obj_int_t mp_maxsize_obj = {{&mp_type_int}, MP_SSIZE_MAX};
#endif
void mp_obj_int_to_bytes_impl(mp_obj_t self_in, bool big_endian, mp_uint_t len, byte *buf) {
assert(MP_OBJ_IS_TYPE(self_in, &mp_type_int));
mp_obj_int_t *self = self_in;
long long val = self->val;
if (big_endian) {
byte *b = buf + len;
while (b > buf) {
*--b = val;
val >>= 8;
}
} else {
for (; len > 0; --len) {
*buf++ = val;
val >>= 8;
}
}
}
int mp_obj_int_sign(mp_obj_t self_in) {
mp_longint_impl_t val;
if (MP_OBJ_IS_SMALL_INT(self_in)) {
val = MP_OBJ_SMALL_INT_VALUE(self_in);
} else {
mp_obj_int_t *self = self_in;
val = self->val;
}
if (val < 0) {
return -1;
} else if (val > 0) {
return 1;
} else {
return 0;
}
}
// This must handle int and bool types, and must raise a
// TypeError if the argument is not integral
mp_obj_t mp_obj_int_abs(mp_obj_t self_in) {
if (MP_OBJ_IS_TYPE(self_in, &mp_type_int)) {
mp_obj_int_t *self = self_in;
self = mp_obj_new_int_from_ll(self->val);
if (self->val < 0) {
// TODO could overflow long long
self->val = -self->val;
}
return self;
} else {
mp_int_t val = mp_obj_get_int(self_in);
if (val == MP_SMALL_INT_MIN) {
return mp_obj_new_int_from_ll(-val);
} else {
if (val < 0) {
val = -val;
}
return MP_OBJ_NEW_SMALL_INT(val);
}
}
}
mp_obj_t mp_obj_int_unary_op(mp_uint_t op, mp_obj_t o_in) {
mp_obj_int_t *o = o_in;
switch (op) {
case MP_UNARY_OP_BOOL: return mp_obj_new_bool(o->val != 0);
// truncate value to fit in mp_int_t, which gives the same hash as
// small int if the value fits without truncation
case MP_UNARY_OP_HASH: return MP_OBJ_NEW_SMALL_INT((mp_int_t)o->val);
case MP_UNARY_OP_POSITIVE: return o_in;
case MP_UNARY_OP_NEGATIVE: return mp_obj_new_int_from_ll(-o->val);
case MP_UNARY_OP_INVERT: return mp_obj_new_int_from_ll(~o->val);
default: return MP_OBJ_NULL; // op not supported
}
}
mp_obj_t mp_obj_int_binary_op(mp_uint_t op, mp_obj_t lhs_in, mp_obj_t rhs_in) {
long long lhs_val;
long long rhs_val;
if (MP_OBJ_IS_SMALL_INT(lhs_in)) {
lhs_val = MP_OBJ_SMALL_INT_VALUE(lhs_in);
} else if (MP_OBJ_IS_TYPE(lhs_in, &mp_type_int)) {
lhs_val = ((mp_obj_int_t*)lhs_in)->val;
} else {
return MP_OBJ_NULL; // op not supported
}
if (MP_OBJ_IS_SMALL_INT(rhs_in)) {
rhs_val = MP_OBJ_SMALL_INT_VALUE(rhs_in);
} else if (MP_OBJ_IS_TYPE(rhs_in, &mp_type_int)) {
rhs_val = ((mp_obj_int_t*)rhs_in)->val;
} else {
// delegate to generic function to check for extra cases
return mp_obj_int_binary_op_extra_cases(op, lhs_in, rhs_in);
}
switch (op) {
case MP_BINARY_OP_ADD:
case MP_BINARY_OP_INPLACE_ADD:
return mp_obj_new_int_from_ll(lhs_val + rhs_val);
case MP_BINARY_OP_SUBTRACT:
case MP_BINARY_OP_INPLACE_SUBTRACT:
return mp_obj_new_int_from_ll(lhs_val - rhs_val);
case MP_BINARY_OP_MULTIPLY:
case MP_BINARY_OP_INPLACE_MULTIPLY:
return mp_obj_new_int_from_ll(lhs_val * rhs_val);
case MP_BINARY_OP_FLOOR_DIVIDE:
case MP_BINARY_OP_INPLACE_FLOOR_DIVIDE:
return mp_obj_new_int_from_ll(lhs_val / rhs_val);
case MP_BINARY_OP_MODULO:
case MP_BINARY_OP_INPLACE_MODULO:
return mp_obj_new_int_from_ll(lhs_val % rhs_val);
case MP_BINARY_OP_AND:
case MP_BINARY_OP_INPLACE_AND:
return mp_obj_new_int_from_ll(lhs_val & rhs_val);
case MP_BINARY_OP_OR:
case MP_BINARY_OP_INPLACE_OR:
return mp_obj_new_int_from_ll(lhs_val | rhs_val);
case MP_BINARY_OP_XOR:
case MP_BINARY_OP_INPLACE_XOR:
return mp_obj_new_int_from_ll(lhs_val ^ rhs_val);
case MP_BINARY_OP_LSHIFT:
case MP_BINARY_OP_INPLACE_LSHIFT:
return mp_obj_new_int_from_ll(lhs_val << (int)rhs_val);
case MP_BINARY_OP_RSHIFT:
case MP_BINARY_OP_INPLACE_RSHIFT:
return mp_obj_new_int_from_ll(lhs_val >> (int)rhs_val);
case MP_BINARY_OP_POWER:
case MP_BINARY_OP_INPLACE_POWER: {
long long ans = 1;
while (rhs_val > 0) {
if (rhs_val & 1) {
ans *= lhs_val;
}
if (rhs_val == 1) {
break;
}
rhs_val /= 2;
lhs_val *= lhs_val;
}
return mp_obj_new_int_from_ll(ans);
}
case MP_BINARY_OP_LESS:
return mp_obj_new_bool(lhs_val < rhs_val);
case MP_BINARY_OP_MORE:
return mp_obj_new_bool(lhs_val > rhs_val);
case MP_BINARY_OP_LESS_EQUAL:
return mp_obj_new_bool(lhs_val <= rhs_val);
case MP_BINARY_OP_MORE_EQUAL:
return mp_obj_new_bool(lhs_val >= rhs_val);
case MP_BINARY_OP_EQUAL:
return mp_obj_new_bool(lhs_val == rhs_val);
default:
return MP_OBJ_NULL; // op not supported
}
}
mp_obj_t mp_obj_new_int(mp_int_t value) {
if (MP_SMALL_INT_FITS(value)) {
return MP_OBJ_NEW_SMALL_INT(value);
}
return mp_obj_new_int_from_ll(value);
}
mp_obj_t mp_obj_new_int_from_uint(mp_uint_t value) {
// SMALL_INT accepts only signed numbers, so make sure the input
// value fits completely in the small-int positive range.
if ((value & ~MP_SMALL_INT_POSITIVE_MASK) == 0) {
return MP_OBJ_NEW_SMALL_INT(value);
}
return mp_obj_new_int_from_ll(value);
}
mp_obj_t mp_obj_new_int_from_ll(long long val) {
mp_obj_int_t *o = m_new_obj(mp_obj_int_t);
o->base.type = &mp_type_int;
o->val = val;
return o;
}
mp_obj_t mp_obj_new_int_from_ull(unsigned long long val) {
// TODO raise an exception if the unsigned long long won't fit
if (val >> (sizeof(unsigned long long) * 8 - 1) != 0) {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OverflowError, "ulonglong too large"));
}
mp_obj_int_t *o = m_new_obj(mp_obj_int_t);
o->base.type = &mp_type_int;
o->val = val;
return o;
}
#if MICROPY_PY_BUILTINS_FLOAT
mp_obj_t mp_obj_new_int_from_float(mp_float_t val) {
int cl = fpclassify(val);
if (cl == FP_INFINITE) {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OverflowError, "can't convert inf to int"));
} else if (cl == FP_NAN) {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "can't convert NaN to int"));
} else {
mp_fp_as_int_class_t icl = mp_classify_fp_as_int(val);
if (icl == MP_FP_CLASS_FIT_SMALLINT) {
return MP_OBJ_NEW_SMALL_INT((mp_int_t)val);
} else if (icl == MP_FP_CLASS_FIT_LONGINT) {
return mp_obj_new_int_from_ll((long long)val);
} else {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "float too big"));
}
}
}
#endif
mp_obj_t mp_obj_new_int_from_str_len(const char **str, mp_uint_t len, bool neg, mp_uint_t base) {
// TODO this does not honor the given length of the string, but it all cases it should anyway be null terminated
// TODO check overflow
mp_obj_int_t *o = m_new_obj(mp_obj_int_t);
o->base.type = &mp_type_int;
char *endptr;
o->val = strtoll(*str, &endptr, base);
*str = endptr;
return o;
}
mp_int_t mp_obj_int_get_truncated(mp_const_obj_t self_in) {
if (MP_OBJ_IS_SMALL_INT(self_in)) {
return MP_OBJ_SMALL_INT_VALUE(self_in);
} else {
const mp_obj_int_t *self = self_in;
return self->val;
}
}
mp_int_t mp_obj_int_get_checked(mp_const_obj_t self_in) {
// TODO: Check overflow
return mp_obj_int_get_truncated(self_in);
}
#if MICROPY_PY_BUILTINS_FLOAT
mp_float_t mp_obj_int_as_float(mp_obj_t self_in) {
if (MP_OBJ_IS_SMALL_INT(self_in)) {
return MP_OBJ_SMALL_INT_VALUE(self_in);
} else {
mp_obj_int_t *self = self_in;
return self->val;
}
}
#endif
#endif
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