ABELI2019
/
Riad_Bajraktarevic
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Verwendung von Funktionen
Maskieren.cpp
int setBit(int x, unsigned char position)
{
int mask = 1 << position;
return x | mask;
}
int clearBit(int x, unsigned char position)
{
int mask = 1 << position;
return x & ~mask;
}
int modifyBit(int x, unsigned char position, bool newState)
{
int mask = 1 << position;
int state = int(newState); // relies on true = 1 and false = 0
return (x & ~mask) | (-state & mask);
}
int flipBit(int x, unsigned char position)
{
int mask = 1 << position;
return x ^ mask;
}
bool isBitSet(int x, unsigned char position)
{
x >>= position;
return (x & 1) != 0;
}