c - How can we shift ob_item pointer in Python tuple if it is static array? -


i reading python 2.7 source code , got stuck following piece of code, in tupleobject.h:

pyobject *ob_item[1];

and in tupleobject.c (pytuple_setitem):

p = ((pytupleobject *)op)->ob_item + i;

how can shift pointer i if ob_item array of 1 pyobject?

it's how arrays , pointers can used interchangeable. it's equivalent to

p = &((pytupleobject *)op)->ob_item[i];

is array name pointer? goes little more detail.


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