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Control string representation of infinity.

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This commit is contained in:
Bob Nystrom
2015-03-13 07:35:10 -07:00
parent 3ac7d80af5
commit 69567c5eb5
2 changed files with 6 additions and 4 deletions
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2
src/wren_core.c
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@ -960,6 +960,8 @@ DEF_PRIMITIVE(num_toString)
// different outputs (some will format it signed and some won't). To get
// reliable output, handle that ourselves.
if (value != value) RETURN_VAL(wrenNewString(vm, "nan", 3));
if (value == INFINITY) RETURN_VAL(wrenNewString(vm, "infinity", 8));
if (value == -INFINITY) RETURN_VAL(wrenNewString(vm, "-infinity", 9));
// This is large enough to hold any double converted to a string using
// "%.14g". Example:

8
test/number/divide.wren
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@ -2,11 +2,11 @@ IO.print(8 / 2) // expect: 4
IO.print(12.34 / -0.4) // expect: -30.85
// Divide by zero.
IO.print(3 / 0) // expect: inf
IO.print(-3 / 0) // expect: -inf
IO.print(3 / 0) // expect: infinity
IO.print(-3 / 0) // expect: -infinity
IO.print(0 / 0) // expect: nan
IO.print(-0 / 0) // expect: nan
IO.print(3 / -0) // expect: -inf
IO.print(-3 / -0) // expect: inf
IO.print(3 / -0) // expect: -infinity
IO.print(-3 / -0) // expect: infinity
IO.print(0 / -0) // expect: nan
IO.print(-0 / -0) // expect: nan