[GitHub] [age] M4rcxs opened a new issue, #1023: Have a function similar to float8in_internal_null( ) for Integer types?

["M4rcxs (via GitHub)" <gi...@apache.org>]

M4rcxs opened a new issue, #1023:
URL: https://github.com/apache/age/issues/1023

   I am currently developing a function that converts a list of values to integers. In the case of float types, we have the convenient `float8in_internal_null()` function at `toFloatList()`, which returns the appropriate float value if the conversion is successful, but returns **NULL** if the conversion of a list element fails.
   
   However, when working with integers and using the `atoi()` function, I encountered a limitation. Unlike `float8in_internal_null()`, `atoi()` does not return **NULL** when it fails to convert an element of the list to an integer. Instead, it returns 0.
   
   Is there an alternative function within some library in **AGE**, that can help me achieve the desired behavior of returning **NULL** when a conversion to an integer is not possible? I would appreciate any guidance on this matter.
   
   The PR of the `toFloatList()` function implemented is #1016 


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[GitHub] [age] kenwoon commented on issue #1023: Have a function similar to float8in_internal_null( ) for Integer types?

["kenwoon (via GitHub)" <gi...@apache.org>]

kenwoon commented on issue #1023:
URL: https://github.com/apache/age/issues/1023#issuecomment-1633159020

   I don't think there is an alternative function available in the AGE library. In your function, it may be easier if you just change the condition when using `atoi()` to check for the value `0` instead of `NULL` since the function will always return `0` when it fails in the conversion. For example:
   
   ```
   int_elem.val.int_value = atoi(string) ? NULL : atoi(string);
   ```


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[GitHub] [age] M4rcxs closed issue #1023: Have a function similar to float8in_internal_null( ) for Integer types?

["M4rcxs (via GitHub)" <gi...@apache.org>]

M4rcxs closed issue #1023: Have a function similar to float8in_internal_null( ) for Integer types?
URL: https://github.com/apache/age/issues/1023


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[GitHub] [age] Amr-Shams commented on issue #1023: Have a function similar to float8in_internal_null( ) for Integer types?

["Amr-Shams (via GitHub)" <gi...@apache.org>]

Amr-Shams commented on issue #1023:
URL: https://github.com/apache/age/issues/1023#issuecomment-1630580680

   I believe you encountered this problem to make a double check about the input what if it is zero and how to differentiate between the input is zero or the conversion was valid if that's the case then you can use an end pointer passed to the Atoi() then check in case of successful conversion the end pointer points to the null terminated string-"\0" other than this will be an error or un successful conversion.
   


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