complement - Related information

  • PHP left shift operation

    echo-2 < < 3; I m a little surprised that the result is-16 the following is the process of my analysis: -2 original code: 1000 0000 0000 0010 -2 inverse code: 1111 1111 1111 1101 -2 complement: 1111 1111 1111 1110 < < result: 1111 ...

  • -1 unsigned output

    -sharpinclude <stdio.h> int main() { short num = -1; 1000 0000 0000 0001() 1111 1111 1111 1110() 1111 1111 1111 1111() , 65535 printf("%u n", num); } question: why is the result not 65535 Thank you ...

    Mar.30,2021
  • Why is the hexadecimal output of-10 ffffff6?

    -sharpinclude <stdio.h> int main() { short int x = -10; - 1000 0000 0000 1010 - 1111 1111 1111 0101 - 1111 1111 1111 0110 F F F 6 - fffffff6, 4 printf("%x n", x); } I just ...

    Mar.23,2021
  • Why is the byte b = 0x80; report type incompatible while byte b = 0x70 has no error message?

    question 0: java byte b = 0x80; byte b = 0x70; question 1: 0x80 We use the usual binary (no complement) to express that it should be 1000 0000. is the 1 in the binary a symbol bit (because I guess the above problem may be related to the symb...

    Mar.10,2021
  • Complement subtraction operation

    consider the following code -sharpinclude <stdio.h> -sharpinclude <limits.h> int compare (const void * a, const void * b) { return ( *(int*)a - *(int*)b ); } int main(void) { int a = 1; int b = INT_MIN; printf("%d %d ...

    Mar.01,2021
  • MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
    MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e46c2b-44bd6.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
    MySQL Errno : 1021
    Message : Disk full (/tmp/#sql-temptable-64f5-1e46c2b-44bd6.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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