diff options
Diffstat (limited to 'ANDROID_3.4.5/include/asm-generic/div64.h')
| -rw-r--r-- | ANDROID_3.4.5/include/asm-generic/div64.h | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/ANDROID_3.4.5/include/asm-generic/div64.h b/ANDROID_3.4.5/include/asm-generic/div64.h deleted file mode 100644 index 8f4e3193..00000000 --- a/ANDROID_3.4.5/include/asm-generic/div64.h +++ /dev/null @@ -1,58 +0,0 @@ -#ifndef _ASM_GENERIC_DIV64_H -#define _ASM_GENERIC_DIV64_H -/* - * Copyright (C) 2003 Bernardo Innocenti <bernie@develer.com> - * Based on former asm-ppc/div64.h and asm-m68knommu/div64.h - * - * The semantics of do_div() are: - * - * uint32_t do_div(uint64_t *n, uint32_t base) - * { - * uint32_t remainder = *n % base; - * *n = *n / base; - * return remainder; - * } - * - * NOTE: macro parameter n is evaluated multiple times, - * beware of side effects! - */ - -#include <linux/types.h> -#include <linux/compiler.h> - -#if BITS_PER_LONG == 64 - -# define do_div(n,base) ({ \ - uint32_t __base = (base); \ - uint32_t __rem; \ - __rem = ((uint64_t)(n)) % __base; \ - (n) = ((uint64_t)(n)) / __base; \ - __rem; \ - }) - -#elif BITS_PER_LONG == 32 - -extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor); - -/* The unnecessary pointer compare is there - * to check for type safety (n must be 64bit) - */ -# define do_div(n,base) ({ \ - uint32_t __base = (base); \ - uint32_t __rem; \ - (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \ - if (likely(((n) >> 32) == 0)) { \ - __rem = (uint32_t)(n) % __base; \ - (n) = (uint32_t)(n) / __base; \ - } else \ - __rem = __div64_32(&(n), __base); \ - __rem; \ - }) - -#else /* BITS_PER_LONG == ?? */ - -# error do_div() does not yet support the C64 - -#endif /* BITS_PER_LONG */ - -#endif /* _ASM_GENERIC_DIV64_H */ |