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cat <<EOF
${int} r, o = *old;
r = raw_${atomic}_cmpxchg${order}(v, o, new);
if (unlikely(r != o))
*old = r;
return likely(r == o);
EOF
原諒我這一生不羈放縱愛自由
cat <<EOF
${int} r, o = *old;
r = raw_${atomic}_cmpxchg${order}(v, o, new);
if (unlikely(r != o))
*old = r;
return likely(r == o);
EOF