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Cast to __intptr_t before casting pointer to int64

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This commit is contained in:
H.J. Lu
2012-11-26 16:42:38 -08:00
parent 4cf77aa984
commit c515fb5148
8 changed files with 67 additions and 13 deletions
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16
include/libc-internal.h
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@ -34,4 +34,20 @@ extern void __libc_thread_freeres (void);
/* Define and initialize `__progname' et. al. */
extern void __init_misc (int, char **, char **);
/* 1 if 'type' is a pointer type, 0 otherwise. */
# define __pointer_type(type) (__builtin_classify_type ((type) 0) == 5)
/* __intptr_t if P is true, or T if P is false. */
# define __integer_if_pointer_type_sub(T, P) \
__typeof__ (*(0 ? (__typeof__ (0 ? (T *) 0 : (void *) (P))) 0 \
: (__typeof__ (0 ? (__intptr_t *) 0 : (void *) (!(P)))) 0))
/* __intptr_t if EXPR has a pointer type, or the type of EXPR otherwise. */
# define __integer_if_pointer_type(expr) \
__integer_if_pointer_type_sub(__typeof__ ((__typeof__ (expr)) 0), \
__pointer_type (__typeof__ (expr)))
/* Cast an integer or a pointer VAL to integer with proper type. */
# define cast_to_integer(val) ((__integer_if_pointer_type (val)) (val))
#endif /* _LIBC_INTERNAL */