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Add cast_to_pointer to cast an integer to void * pointer

This commit is contained in:
H.J. Lu 2021-05-21 15:58:36 -07:00
parent 49e182c737
commit 94bc766ec6
1 changed files with 3 additions and 0 deletions
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3
include/libc-pointer-arith.h
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@ -37,6 +37,9 @@
/* Cast an integer or a pointer VAL to integer with proper type. */ /* Cast an integer or a pointer VAL to integer with proper type. */
# define cast_to_integer(val) ((__integer_if_pointer_type (val)) (val)) # define cast_to_integer(val) ((__integer_if_pointer_type (val)) (val))
/* Cast an integer VAL to void * pointer. */
# define cast_to_pointer(val) ((void *) (uintptr_t) (val))
/* Align a value by rounding down to closest size. /* Align a value by rounding down to closest size.
e.g. Using size of 4096, we get this behavior: e.g. Using size of 4096, we get this behavior:
{4095, 4096, 4097} = {0, 4096, 4096}. */ {4095, 4096, 4097} = {0, 4096, 4096}. */