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Implement abs for complex #276

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Merged
Smit-create merged 2 commits into from
Mar 25, 2022
Merged

Implement abs for complex #276

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55aeeed
Implement abs for complex
Smit-create Mar 24, 2022
fd095ea
add a test for abs with complex
Smit-create Mar 24, 2022
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13 changes: 13 additions & 0 deletions integration_tests/test_complex.py
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Original file line number Diff line number Diff line change
Expand Up @@ -40,8 +40,21 @@ def test_complex():
print(x.real)
print(x.imag)


def test_complex_abs():
x: c32
x = complex(3, 4)
eps: f64
eps = 1e-12
assert abs(abs(x) - 5.0) < eps
y: c64
y = complex(6, 8)
assert abs(abs(y) - 10.0) < eps


def check():
test_real_imag()
test_complex()
test_complex_abs()

check()
12 changes: 10 additions & 2 deletions src/runtime/lpython_builtin.py
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Expand Up @@ -64,11 +64,19 @@ def abs(b: bool) -> i32:

@overload
def abs(c: c32) -> f32:
pass
a: f32
b: f32
a = c.real
b = _lfortran_caimag(c)
return (a**2 + b**2)**(1/2)

@overload
def abs(c: c64) -> f64:
pass
a: f64
b: f64
a = c.real
b = _lfortran_zaimag(c)
return (a**2 + b**2)**(1/2)


def str(x: i32) -> str:
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