Java Utililty Methods Ceil

List of utility methods to do Ceil

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Description

The list of methods to do Ceil are organized into topic(s).

Method

intceilingPow2(int n)
Converting the passed value to make sure we can use it for OpenGL. 
int pow2 = 1;
while (n > pow2)
    pow2 = pow2 << 1;
return pow2;
intceilingPowerOf2(final int n)
Computes the ceiling power of 2 within the range [1, 2^30]. 
if (n <= 1) {
    return 1;
final int topPwrOf2 = 1 << 30;
return (n >= topPwrOf2) ? topPwrOf2 : Integer.highestOneBit((n - 1) << 1);
intceilingPowerOf2(int n)
Computes the ceiling power of 2 within the range [1, 2^30]. 
if (n <= 1) {
    return 1;
if (n >= IntTopPwrOf2) {
    return IntTopPwrOf2;
n--;
for (int i = 1; i <= MaxIntShifts; i <<= 1) {
...
intceilingPowerOfTwo(final int a)
ceiling Power Of Two 
checkIsInRange(0, 1 << 30, a);
return a >= 2 ? Integer.highestOneBit(a - 1 << 1) : 1;
intceilingPowerOfTwo(int value)
Returns the smallest power of two number that is greater than or equal to value . 
return 1 << -Integer.numberOfLeadingZeros(value - 1);
DoubleceilInt(Double d, double intv)
ceil Int 
return floorInt(d, intv) + intv;
intceilInt(final double x)
Returns (int) Math.ceil(x). 
return (int) Math.ceil(x);
intceilLogBaseTwo(final int i)
Returns the log base 2 of an integer, rounded to the ceiling. 
checkPositiveInteger(i);
return 32 - Integer.numberOfLeadingZeros(i - 1);
intceilMaskPOT(int n)
ceil Mask POT 
n |= n >>> 1;
n |= n >>> 2;
n |= n >>> 4;
n |= n >>> 8;
n |= n >>> 16;
return n;
floatceilMultiple(float source, float multiple)
ceil Multiple 
if (source > 0) {
    float tmp = source - 1;
    return tmp + (multiple - (tmp % multiple));
} else {
    return source + (-source % multiple);