Bug report

Bug description:

Attribute_type_ ofc_ulong returnsL, which is correct following theformat characters documentation; however, the documentation says it has 4 bytes size, butsizeof(c_ulong) returns 8 bytes.

>>>sizeof(c_ulong)8>>>c_ulong._type_'L'

Alsoc_ulonglong is automatically casted toc_ulong:

t5=c_ulonglong(200000000000000000000000000000000000)>>> type(t5)<class'ctypes.c_ulong'>

, thus ifc_ulong will have 4 bytes, will be there available a type of 8 bytes size?

CPython versions tested on:

3.8

Operating systems tested on:

Linux

Linked PRs

• gh-108907: ctypes: Document _type_ codes #145837
• [3.14] gh-108907: ctypes: Document _type_ codes (GH-145837) #146328