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Allow underscores in numbers.

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Balajiganapathi S
2018-08-08 12:05:51 +02:00
committed by Christian Parpart
parent 4dc3335cda
commit 0000bfc604
5 changed files with 198 additions and 2 deletions
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docs/types.rst
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@@ -284,6 +284,9 @@ one side. Examples include ``1.``, ``.1`` and ``1.3``.
Scientific notation is also supported, where the base can have fractions, while the exponent cannot.
Examples include ``2e10``, ``-2e10``, ``2e-10``, ``2.5e1``.
Underscores can be used to separate digits of a numeric literal to aid readability.
For example, ``123_000``, ``0x2eff_abde``, ``1_233e34_89`` are all valid. Underscores are only allowed between two digits.
Number literal expressions retain arbitrary precision until they are converted to a non-literal type (i.e. by
using them together with a non-literal expression).
This means that computations do not overflow and divisions do not truncate