ARROW-12657: [C++] Adding String hex to numeric conversion #11160
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This PR was supposed to be a re-implementation of #11064 but it was based off of the wrong master. Will do another PR |
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This PR adds the ability for the StringConverter to parse hex strings of the form:
0x123abc to an integer.
The strings must start with "0x" case insensitive.
The values ABCDEF are case insensitive.
Note that there was already a Hex Parsing function here:
https://github.com/apache/arrow/blob/master/cpp/src/arrow/util/string.cc#L76
Which was not really flexible enough for what was needed.
Not sure it it would be best to replace it with the new functionality added by this PR. I am open to suggestions
This work was originally done here #11064 but had to create a new PR due to a rebase issue