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Diffstat (limited to 'docs/frequently-asked-questions.rst')
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diff --git a/docs/frequently-asked-questions.rst b/docs/frequently-asked-questions.rst index b26ff527..2c5f8661 100644 --- a/docs/frequently-asked-questions.rst +++ b/docs/frequently-asked-questions.rst @@ -446,6 +446,25 @@ does not fit inside this range, it is truncated. These truncations can have above is necessary to avoid certain attacks. +Why are explicit conversions between fixed-size bytes types and integer types failing? +====================================================================================== + +Since version 0.5.0 explicit conversions between fixed-size byte arrays and integers are only allowed, +if both types have the same size. This prevents unexpected behaviour when truncating or padding. +Such conversions are still possible, but intermediate casts are required that make the desired +truncation and padding convention explicit. See :ref:`types-conversion-elementary-types` for a full +explanation and examples. + + +Why can number literals not be converted to fixed-size bytes types? +=================================================================== + +Since version 0.5.0 only hexadecimal number literals can be converted to fixed-size bytes +types and only if the number of hex digits matches the size of the type. See :ref:`types-conversion-literals` +for a full explanation and examples. + + + More Questions? =============== |