Esempi in C++ (Cpp) per is_power_of

Esempio n. 1

File: ext4_super.c Progetto: gkostka/lwext4

bool ext4_sb_sparse(uint32_t group)
{
	if (group <= 1)
		return 1;

	if (!(group & 1))
		return 0;

	return (is_power_of(group, 7) || is_power_of(group, 5) ||
		is_power_of(group, 3));
}

Esempio n. 2

File: ext4_utils.c Progetto: 0xD34D/android_system_extras

/* Returns 1 if the bg contains a backup superblock.  On filesystems with
   the sparse_super feature, only block groups 0, 1, and powers of 3, 5,
   and 7 have backup superblocks.  Otherwise, all block groups have backup
   superblocks */
int ext4_bg_has_super_block(int bg)
{
	/* Without sparse_super, every block group has a superblock */
	if (!(info.feat_ro_compat & EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER))
		return 1;

	if (bg == 0 || bg == 1)
		return 1;

	if (is_power_of(bg, 3) || is_power_of(bg, 5) || is_power_of(bg, 7))
		return 1;

	return 0;
}