代码示例来源:origin: prestodb/presto @OutputFunction(StandardTypes.BIGINT) public static void evaluateFinal(BooleanDistinctState state, BlockBuilder out) { BIGINT.writeLong(out, Integer.bitCount(state.getByte())); } } 内容来源于网络,如有侵权,请联系作者删除! Integer 关注 举报 ...
This function is * sometimes referred to as the population count. * * @param i the value whose bits are to be counted * @return the number of one-bits in the two's complement binary * representation of the specified {@code int} value. * @since 1.5 */ public static int bitCount(int...
Java源码解释之Integer.bitCount Java中的Integer.bitCount(i)的返回值是i的二进制表示中1的个数。源码如下: 1 2 3 4 5 6 7 8 9 publicstaticintbitCount(inti) { // HD, Figure 5-2 i = i - ((i >>>1) &0x55555555); i = (i &0x33333333) + ((i >>>2) &0x33333333); i = (i +...
Returns the number of one-bits in the two's complement binary representation of the specified int value. This function is sometimes referred to as the population count. Added in 1.5. Java documentation for java.lang.Integer.bitCount(int). Portions of this page are modifications based on work ...
解后的数字如果超出 [Math.pow(-2,31), Math.pow(2,31)-1], 返回这些极限值 ```javascript function ... 司徒正美 0 270 Integer Approximation(分治+枚举) 2019-12-22 20:07 − Integer Approximation https://vjudge.net/problem/POJ-1650 直接暴力枚举每个数,得出最接近的两个整数 #include<...
throw new PrestoException(INVALID_FUNCTION_ARGUMENT, "Number must be representable with the bits specified. " + num + " can not be represented with " + bits + " bits"); } long mask = (1L << bits) - 1; return Long.bitCount(num & mask); ...
Returns the number of one-bits in the two's complement binary representation of the specifiedintvalue. This function is sometimes referred to as thepopulation count. Added in 1.5. Java documentation forjava.lang.Integer.bitCount(int). Portions of this page are modifications based on work created...
* Returns the number of one-bits in the two's complement binary * representation of the specified {@code int} value. This function is * sometimes referred to as the population count. * * @param i the value whose bits are to be counted * @return ...
Returns the number of one-bits in the two's complement binary representation of the specifiedintvalue. This function is sometimes referred to as thepopulation count. Added in 1.5. Java documentation forjava.lang.Integer.bitCount(int). Portions of this page are modifications based on work created...
Returns the number of one-bits in the two's complement binary representation of the specifiedintvalue. This function is sometimes referred to as thepopulation count. Added in 1.5. Java documentation forjava.lang.Integer.bitCount(int). Portions of this page are modifications based on work created...