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Merge pull request #7374 from ethereum/hexStringUnderscores

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Allow  underscores in hex strings.
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chriseth
2019-09-09 11:48:46 +02:00
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parent 9c72f25cce 6f3341a204
commit a272506a34
9 changed files with 56 additions and 5 deletions
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docs/types/value-types.rst
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@@ -499,7 +499,7 @@ terminate the string literal. Newline only terminates the string literal if it i
Hexadecimal Literals
--------------------
Hexadecimal literals are prefixed with the keyword ``hex`` and are enclosed in double or single-quotes (``hex"001122FF"``). Their content must be a hexadecimal string and their value will be the binary representation of those values.
Hexadecimal literals are prefixed with the keyword ``hex`` and are enclosed in double or single-quotes (``hex"001122FF"``, ``hex'0011_22_FF'``). Their content must be hexadecimal digits which can optionally use a single underscore as separator between byte boundaries. The value of the literal will be the binary representation of the hexadecimal sequence.
Hexadecimal literals behave like :ref:`string literals <string_literals>` and have the same convertibility restrictions.