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gh-110383: Added explanation in Doc about array data types range. Based on GNU docs #113708

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gh-110383: Added explanation in Doc about array data types range. Based on GNU docs #113708

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gh-110383: Added explanation about
LombardiDaniel Jan 4, 2024
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Merge branch 'main' into main
LombardiDaniel Jan 15, 2024
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fix trailing whitespace lint
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Update Doc/library/array.rst
LombardiDaniel Mar 14, 2024
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19 changes: 13 additions & 6 deletions Doc/library/array.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -30,17 +30,17 @@ defined:
+-----------+--------------------+-------------------+-----------------------+-------+
| ``'H'`` | unsigned short | int | 2 | |
+-----------+--------------------+-------------------+-----------------------+-------+
| ``'i'`` | signed int | int | 2 | |
| ``'i'`` | signed int | int | 2 | \(2) |
+-----------+--------------------+-------------------+-----------------------+-------+
| ``'I'`` | unsigned int | int | 2 | |
| ``'I'`` | unsigned int | int | 2 | \(2) |
+-----------+--------------------+-------------------+-----------------------+-------+
| ``'l'`` | signed long | int | 4 | |
| ``'l'`` | signed long | int | 4 | \(2) |
+-----------+--------------------+-------------------+-----------------------+-------+
| ``'L'`` | unsigned long | int | 4 | |
| ``'L'`` | unsigned long | int | 4 | \(2) |
+-----------+--------------------+-------------------+-----------------------+-------+
| ``'q'`` | signed long long | int | 8 | |
| ``'q'`` | signed long long | int | 8 | \(2) |
+-----------+--------------------+-------------------+-----------------------+-------+
| ``'Q'`` | unsigned long long | int | 8 | |
| ``'Q'`` | unsigned long long | int | 8 | \(2) |
+-----------+--------------------+-------------------+-----------------------+-------+
| ``'f'`` | float | float | 4 | |
+-----------+--------------------+-------------------+-----------------------+-------+
Expand All @@ -60,6 +60,13 @@ Notes:
.. deprecated-removed:: 3.3 3.16
Please migrate to ``'w'`` typecode.

(2)
Int data types (signed or unsigned) can be 16 or 32 bits depending on the platform. The
same way that long data types can be 32 or 64 bits depending on the platform. On most
machines that run GNU C Library, an int is a 32-bit quantity. On most machines, long
int is also 32-bit, the same size as int. And lastly, on most machines, long long int
are 64-bit quantities. View more at: https://www.gnu.org/software/libc/manual/html_node/Range-of-Type.html


The actual representation of values is determined by the machine architecture
(strictly speaking, by the C implementation). The actual size can be accessed
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