lpython/src/runtime/lpython_builtin.py at main · kinshukdua/lpython · GitHub

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from ltypes import i8, i16, i32, i64, f32, f64, c32, c64, overload

#from sys import exit

def ord(s: str) -> i32:

"""

Returns an integer representing the Unicode code

point of a given unicode character. This is the inverse of `chr()`.

"""

if s == '0':

return 48

elif s == '1':

return 49

# else:

# exit(1)

def chr(i: i32) -> str:

"""

Returns the string representing a unicode character from

the given Unicode code point. This is the inverse of `ord()`.

"""

if i == 48:

return '0'

elif i == 49:

return '1'

# else:

# exit(1)

#: abs() as a generic procedure.

#: supported types for argument:

#: i8, i16, i32, i64, f32, f64, bool, c32, c64

@overload

def abs(x: f64) -> f64:

"""

Return the absolute value of `x`.

"""

if x >= 0.0:

return x

else:

return -x

@overload

def abs(x: f32) -> f32:

if x >= 0.0:

return x

else:

return -x

@overload

def abs(x: i8) -> i8:

if x >= 0:

return x

else:

return -x

@overload

def abs(x: i16) -> i16:

if x >= 0:

return x

else:

return -x

@overload

def abs(x: i32) -> i32:

if x >= 0:

return x

else:

return -x

@overload

def abs(x: i64) -> i64:

if x >= 0:

return x

else:

return -x

@overload

def abs(b: bool) -> i32:

if b:

return 1

else:

return 0

@overload

def abs(c: c32) -> f32:

a: f32

b: f32

a = c.real

b = _lfortran_caimag(c)

return (a**2 + b**2)**(1/2)

@overload

def abs(c: c64) -> f64:

a: f64

b: f64

a = c.real

b = _lfortran_zaimag(c)

return (a**2 + b**2)**(1/2)

def str(x: i32) -> str:

"""

Return the string representation of an integer `x`.

"""

if x == 0:

return '0'

result: str

result = ''

if x < 0:

result += '-'

x = -x

rev_result: str

rev_result = ''

rev_result_len: i32

rev_result_len = 0

pos_to_str: list[str]

pos_to_str = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']

while x > 0:

rev_result += pos_to_str[x - _lpython_floordiv(x, 10)*10]

rev_result_len += 1

x = _lpython_floordiv(x, 10)

pos: i32

for pos in range(rev_result_len - 1, -1, -1):

result += rev_result[pos]

return result

#: bool() as a generic procedure.

#: supported types for argument:

#: i8, i16, i32, i64, f32, f64, bool

@overload

def bool(x: i32) -> bool:

"""

Return False when the argument `x` is 0, True otherwise.

"""

return x != 0

@overload

def bool(x: i64) -> bool:

return x != 0

@overload

def bool(x: i8) -> bool:

return x != 0

@overload

def bool(x: i16) -> bool:

return x != 0

@overload

def bool(f: f32) -> bool:

return f != 0.0

@overload

def bool(f: f64) -> bool:

"""

Return False when the argument `x` is 0.0, True otherwise.

"""

return f != 0.0

@overload

def bool(s: str) -> bool:

"""

Return False when the argument `s` is an empty string, True otherwise.

"""

return len(s) > 0

@overload

def bool(b: bool) -> bool:

return b

@overload

def bool(c: c32) -> bool:

pass

@overload

def bool(c: c64) -> bool:

# TODO: implement once we can access `real` and `imag` attributes

pass

@interface

def len(s: str) -> i32:

"""

Return the length of the string `s`.

"""

pass

#: pow() as a generic procedure.

#: supported types for arguments:

#: (i32, i32), (i64, i64), (f64, f64),

#: (f32, f32), (i32, f64), (f64, i32),

#: (i32, f32), (f32, i32), (bool, bool), (c32, i32)

@overload

def pow(x: i32, y: i32) -> i32:

"""

Returns x**y.

"""

return x**y

@overload

def pow(x: i64, y: i64) -> i64:

return x**y

@overload

def pow(x: f32, y: f32) -> f32:

return x**y

@overload

def pow(x: f64, y: f64) -> f64:

"""

Returns x**y.

"""

return x**y

@overload

def pow(x: i32, y: f32) -> f32:

return x**y

@overload

def pow(x: f32, y: i32) -> f32:

return x**y

@overload

def pow(x: i32, y: f64) -> f64:

return x**y

@overload

def pow(x: f64, y: i32) -> f64:

return x**y

@overload

def pow(x: bool, y: bool) -> i32:

if y and not x:

return 0

return 1

@overload

def pow(c: c32, y: i32) -> c32:

return c**y

def bin(n: i32) -> str:

"""

Returns the binary representation of an integer `n`.

"""

if n == 0:

return '0b0'

prep: str

prep = '0b'

if n < 0:

n = -n

prep = '-0b'

res: str

res = ''

res += '0' if (n - _lpython_floordiv(n, 2)*2) == 0 else '1'

while n > 1:

n = _lpython_floordiv(n, 2)

res += '0' if (n - _lpython_floordiv(n, 2)*2) == 0 else '1'

return prep + res[::-1]

def hex(n: i32) -> str:

"""

Returns the hexadecimal representation of an integer `n`.

"""

hex_values: list[str]

hex_values = ['0', '1', '2', '3', '4', '5', '6', '7',

'8', '9', 'a', 'b', 'c', 'd', 'e', 'f']

if n == 0:

return '0x0'

prep: str

prep = '0x'

if n < 0:

prep = '-0x'

n = -n

res: str

res = ""

remainder: i32

while n > 0:

remainder = n - _lpython_floordiv(n, 16)*16

n -= remainder

n = _lpython_floordiv(n, 16)

res += hex_values[remainder]

return prep + res[::-1]

def oct(n: i32) -> str:

"""

Returns the octal representation of an integer `n`.

"""

_values: list[str]

_values = ['0', '1', '2', '3', '4', '5', '6', '7',

'8', '9', 'a', 'b', 'c', 'd', 'e', 'f']

if n == 0:

return '0o0'

prep: str

prep = '0o'

if n < 0:

prep = '-0o'

n = -n

res: str

res = ""

remainder: i32

while n > 0:

remainder = n - _lpython_floordiv(n, 8)*8

n -= remainder

n = _lpython_floordiv(n, 8)

res += _values[remainder]

return prep + res[::-1]

#: round() as a generic procedure.

#: supported types for argument:

#: i8, i16, i32, i64, f32, f64, bool

@overload

def round(value: f64) -> i32:

"""

Rounds a floating point number to the nearest integer.

"""

i: i32

i = int(value)

f: f64

f = abs(value - i)

if f < 0.5:

return i

elif f > 0.5:

return i + 1

else:

if i - _lpython_floordiv(i, 2) * 2 == 0:

return i

else:

return i + 1

@overload

def round(value: f32) -> i32:

i: i32

i = int(value)

f: f64

f = abs(value - i)

if f < 0.5:

return i

elif f > 0.5:

return i + 1

else:

if i - _lpython_floordiv(i, 2) * 2 == 0:

return i

else:

return i + 1

@overload

def round(value: i32) -> i32:

return value

@overload

def round(value: i64) -> i64:

return value

@overload

def round(value: i8) -> i8:

return value

@overload

def round(value: i16) -> i16:

return value

@overload

def round(b: bool) -> i32:

return abs(b)

#: complex() as a generic procedure.

#: supported types for arguments:

#: (f64, f64), (f32, f64), (f64, f32), (f32, f32),

#: (i32, i32), (i64, i64), (i32, i64), (i64, i32)

@interface

@overload

def complex(x: f64, y: f64) -> c64:

"""

Return a complex number with the given real and imaginary parts.

"""

return x + y*1j

@interface

@overload

def complex(x: f32, y: f32) -> c32:

return x + y*1j

@interface

@overload

def complex(x: f32, y: f64) -> c64:

return x + y*1j

@interface

@overload

def complex(x: f64, y: f32) -> c64:

return x + y*1j

@interface

@overload

def complex(x: i32, y: i32) -> c64:

return x + y*1j

@interface

@overload

def complex(x: i64, y: i64) -> c64:

return x + y*1j

@interface

@overload

def complex(x: i32, y: i64) -> c64:

return x + y*1j

@interface

@overload

def complex(x: i64, y: i32) -> c64:

return x + y*1j

@interface

@overload

def complex(x: i32, y: f64) -> c64:

return x + y*1j

@interface

@overload

def complex(x: f64, y: i32) -> c64:

return x + y*1j

@interface

def divmod(x: i32, y: i32) -> tuple[i32, i32]:

#: TODO: Implement once we have tuple support in the LLVM backend

pass

def lbound(x: i32[:], dim: i32) -> i32:

pass

def ubound(x: i32[:], dim: i32) -> i32:

pass

@ccall

def _lfortran_caimag(x: c32) -> f32:

pass

@ccall

def _lfortran_zaimag(x: c64) -> f64:

pass

@overload

def _lpython_imag(x: c64) -> f64:

return _lfortran_zaimag(x)

@overload

def _lpython_imag(x: c32) -> f32:

return _lfortran_caimag(x)

@overload

def _lpython_floordiv(a: f64, b: f64) -> f64:

r: f64

r = a/b

result: i64

result = int(r)

if r >= 0.0 or result == r:

return float(result)

return float(result-1)

@overload

def _lpython_floordiv(a: f32, b: f32) -> f32:

r: f32

r = a/b

result: i32

result = int(r)

if r >= 0.0 or result == r:

return float(result)

return float(result-1)

@overload

def _lpython_floordiv(a: i32, b: i32) -> i32:

r: f32

r = a/b

result: i32

result = int(r)

if r >= 0.0 or result == r:

return result

return result - 1

@overload

def _lpython_floordiv(a: i64, b: i64) -> i64:

r: f64

r = a/b

result: i64

result = int(r)

if r >= 0.0 or result == r:

return result

return result - 1

@overload

def _mod(a: i32, b: i32) -> i32:

return a - _lpython_floordiv(a, b)*b

@overload

def _mod(a: f32, b: f32) -> f32:

return a - _lpython_floordiv(a, b)*b

@overload

def _mod(a: i64, b: i64) -> i64:

return a - _lpython_floordiv(a, b)*b

@overload

def _mod(a: f64, b: f64) -> f64:

return a - _lpython_floordiv(a, b)*b

@overload

def _bitwise_or(a: i32, b: i32) -> i32:

pass

@overload

def _bitwise_or(a: i64, b: i64) -> i64:

pass

@overload

def _bitwise_and(a: i32, b: i32) -> i32:

pass

@overload

def _bitwise_and(a: i64, b: i64) -> i64:

pass

@overload

def _bitwise_xor(a: i32, b: i32) -> i32:

pass

@overload

def _bitwise_xor(a: i64, b: i64) -> i64:

pass

@overload

def _bitwise_lshift(a: i32, b: i32) -> i32:

return a*2**b

@overload

def _bitwise_lshift(a: i64, b: i64) -> i64:

return a*2**b

@overload

def _bitwise_rshift(a: i32, b: i32) -> i32:

i: i32

i = 2

return _lpython_floordiv(a, i**b)

@overload

def _bitwise_rshift(a: i64, b: i64) -> i64:

i: i64

i = 2

return _lpython_floordiv(a, i**b)

lpython/src/runtime/lpython_builtin.py at main · kinshukdua/lpython · GitHub

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