max unsigned int

Copy codeThe Code is as follows: # include Int main (int argc, char * argv []) { Unsigned int max_int = 0-1; Printf ("The max value of unsigned int on 32 machine: % u/n", max_int ); } Copy codeThe Code is as follows: # include Int main (int argc,

Copy Code code as follows: #include int main (int argc, char *argv[]) { unsigned int max_int = 0-1; printf ("The max value of unsigned int on machine:%u/n", max_int); } Copy Code code as follows: #include

Some people have mentioned the difference between char and unsigned char recently. Of course, if you have just learned a computer orProgramming LanguageIt is very simple for people. In my opinion, it is nothing more than the difference between

/*int signed 0xFFFFFFFF = = -10xfffffffe = 2 min 0x80000000 = = 21 4748 3648 maximum 0x7fffffff = = 4748 36470x00000001 = 10x0000000 0 = = 0int unsigned max 0xFFFFFFFF = 9496 7295 0x80000000 = 4748 36480x7fffffff = 21 4748 3647 min 0x00000000 = = 0*/

Program design principles for signed and unsigned numbers: Use a signed number (such as int) when you want to represent a numeric value. When you need to represent a bit collection, use an unsigned number (such as unsigned int).

Today, online brush questions, one of the problems always results and expectations are not the same, in time and again check the program logic, confirm the correct, or can not pass, forced to use vs Start debugging!Here is my program code:1

Inside the computer, all of our information is made up of binary numbers.The symbolic number of the table real method: The number of symbols is in the form of a complement within the computer A positive complement of positive digits

/* Int signed 0 xffffffff =-10 xfffffffe =-2 min 0x80000000 =-21 4748 Max 0x7fffffff = 21 3648x4748 = 10x36470 = 0int unsigned maximum 0 xffffffff = 42 9496 7295 0x80000000 = 21 4748 36480x7fffffff = 21 4748 3647 Minimum 0x00000000 = 0 */ Intmain ()

unsigned     is not a negative number, use this type to increase the length of the data! For example if       tinyint max is 127, that       tinyint      unsigned      Max     to     127 * 2 Unsigned property

$sql = "UPDATE ' dzxbbs_common_member ' SET newprompt=newprompt-1 WHERE uid= ' {$uid} '"; The type of newprompt in the ' dzxbbs_common_member ' table is the type of smallint unsigned length 6. When the Newprompt value is 0 o'clock, execute this