AtomicInt -- the class of atomic integers

Description

Atomic integers are a special type of integer for which various atomic operations, which cannot be interrupted, are available. This makes them useful for parallel programming.

Caveat

On most systems, atomic integers use 32 bits, i.e., they must lie between $-2^{31}$ and $2^{31} - 1$.

Methods that use an atomic integer :

AtomicInt &= ZZ -- atomic fetch and bitwise and
AtomicInt += ZZ -- atomic fetch and add
AtomicInt -= ZZ -- atomic fetch and subtract
AtomicInt ^^= ZZ -- atomic fetch and bitwise xor
AtomicInt |= ZZ -- atomic fetch and bitwise or
compareExchange(AtomicInt,ZZ,ZZ) -- see compareExchange -- compares and possibly exchanges the value of an atomic integer
exchange(AtomicInt,ZZ) -- see exchange -- exchange the value of an atomic integer
new AtomicInt -- see new AtomicInt from ZZ -- initialize an atomic integer
new AtomicInt from ZZ -- initialize an atomic integer
new ZZ from AtomicInt -- load an atomic integer
store(AtomicInt,ZZ) -- see store -- store the value of an atomic integer

For the programmer

The object AtomicInt is a type, with ancestor class Thing.

AtomicInt -- the class of atomic integers

Description

Caveat

See also

Methods that use an atomic integer :

For the programmer