eryn/polka
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Remove all the range checking from Bitmap

Browse source
This commit is contained in:
Eryn Wells 2016-04-16 01:24:28 -04:00
parent 99d3e85ba5
commit 1daa3df74e
1 changed files with 5 additions and 22 deletions
Download patch file Download diff file Expand all files Collapse all files

27
src/kstd/Bitmap.hh
View file

@ -43,39 +43,29 @@ struct Bitmap
isSet(usize bit)
const
{
if (isValid(bit)) {
return (mBitmap & (1 << bit)) > 0;
}
return false;
return (mBitmap & FieldType(1 << bit)) > 0;
}
/** Set a single bit to 1. */
void
set(usize bit)
{
if (isValid(bit)) {
mBitmap |= 1 << bit;
}
mBitmap |= FieldType(1 << bit);
}
/** Set a single bit to zero. */
void
clear(usize bit)
{
if (isValid(bit)) {
mBitmap &= ~(1 << bit);
}
mBitmap &= ~FieldType(1 << bit);
}
/** Toggle the state of a single bit. Returns `true` if the bit was set to 1. */
bool
toggle(usize bit)
{
if (isValid(bit)) {
mBitmap ^= 1 << bit;
return isSet(bit);
}
return false;
mBitmap ^= FieldType(1 << bit);
return isSet(bit);
}
/** Clear the entire bit field. */
@ -101,13 +91,6 @@ struct Bitmap
private:
FieldType mBitmap;
inline bool
isValid(usize bit)
const
{
return bit >= 0 && bit < Bitmap::length;
}
};
} /* namespace kstd */