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Temporal: add new arithmetic operators allowing more inter-operability of int64_t/int62_t; make operator int64_t explicit to avoid hidden use

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This commit is contained in:
Paul Davis 2020-08-09 14:12:31 -06:00
parent 788cd5456e
commit b7b4c99bc9
1 changed files with 69 additions and 12 deletions
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81
libs/pbd/pbd/int62.h
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@ -72,17 +72,17 @@ class alignas(16) int62_t {
int62_t operator- () const { int64_t tmp = v; return int62_t (flagged (tmp), -int62(tmp)); }
int62_t operator+ (int n) const { int64_t tmp = v; return int62_t (flagged (tmp), int62 (tmp) + n); }
int62_t operator- (int n) const { int64_t tmp = v; return int62_t (flagged (tmp), int62 (tmp) - n); }
int62_t operator* (int n) const { int64_t tmp = v; return int62_t (flagged (tmp), int62 (tmp) * n); }
int62_t operator/ (int n) const { int64_t tmp = v; return int62_t (flagged (tmp), int62 (tmp) / n); }
int62_t operator% (int n) const { int64_t tmp = v; return int62_t (flagged (tmp), int62 (tmp) % n); }
int62_t operator+ (int64_t n) const { int64_t tmp = v; return int62_t (flagged (tmp), int62 (tmp) + n); }
int62_t operator- (int64_t n) const { int64_t tmp = v; return int62_t (flagged (tmp), int62 (tmp) - n); }
int62_t operator* (int64_t n) const { int64_t tmp = v; return int62_t (flagged (tmp), int62 (tmp) * n); }
int62_t operator/ (int64_t n) const { int64_t tmp = v; return int62_t (flagged (tmp), int62 (tmp) / n); }
int62_t operator% (int64_t n) const { int64_t tmp = v; return int62_t (flagged (tmp), int62 (tmp) % n); }
int62_t operator+ (int62_t n) const { int64_t tmp = v; return int62_t (flagged (tmp), int62 (tmp) + n); }
int62_t operator- (int62_t n) const { int64_t tmp = v; return int62_t (flagged (tmp), int62 (tmp) - n); }
int62_t operator* (int62_t n) const { int64_t tmp = v; return int62_t (flagged (tmp), int62 (tmp) * n); }
int62_t operator/ (int62_t n) const { int64_t tmp = v; return int62_t (flagged (tmp), int62 (tmp) / n); }
int62_t operator% (int62_t n) const { int64_t tmp = v; return int62_t (flagged (tmp), int62 (tmp) % n); }
int62_t operator+ (int62_t n) const { int64_t tmp = v; return int62_t (flagged (tmp), int62 (tmp) + n.val()); }
int62_t operator- (int62_t n) const { int64_t tmp = v; return int62_t (flagged (tmp), int62 (tmp) - n.val()); }
int62_t operator* (int62_t n) const { int64_t tmp = v; return int62_t (flagged (tmp), int62 (tmp) * n.val()); }
int62_t operator/ (int62_t n) const { int64_t tmp = v; return int62_t (flagged (tmp), int62 (tmp) / n.val()); }
int62_t operator% (int62_t n) const { int64_t tmp = v; return int62_t (flagged (tmp), int62 (tmp) % n.val()); }
/* comparison operators .. will throw if the two objects have different
* flag settings (which is assumed to indicate that they differ in some
@ -101,7 +101,14 @@ class alignas(16) int62_t {
bool operator!= (int62_t const & other) const { if (flagged() != other.flagged()) throw flag_mismatch(); return val() != other.val(); }
bool operator== (int62_t const & other) const { if (flagged() != other.flagged()) throw flag_mismatch(); return val() == other.val(); }
operator int64_t() const { return int62(v); }
explicit operator int64_t() const { return int62(v); }
bool operator< (int64_t n) const { return val() < n; }
bool operator<= (int64_t n) const { return val() <= n; }
bool operator> (int64_t n) const { return val() > n; }
bool operator>= (int64_t n) const { return val() >= n; }
bool operator!= (int64_t n) const { return val() != n; }
bool operator== (int64_t n) const { return val() == n; }
int62_t abs() const { int64_t tmp = v; return int62_t (flagged(tmp), ::abs(int62(tmp))); }
@ -156,7 +163,57 @@ class alignas(16) int62_t {
return *this;
}
bool operator== (int64_t vv) const { return val() == v; }
int62_t& operator+= (int62_t n) {
while (1) {
int64_t oldval (v);
int64_t newval = build (flagged (oldval), int62 (oldval) + n.val());
if (v.compare_exchange_strong (oldval, newval)) {
break;
}
}
return *this;
}
int62_t& operator-= (int62_t n) {
while (1) {
int64_t oldval (v);
int64_t newval = build (flagged (oldval), int62 (oldval) - n.val());
if (v.compare_exchange_strong (oldval, newval)) {
break;
}
}
return *this;
}
int62_t& operator*= (int62_t n) {
while (1) {
int64_t oldval (v);
int64_t newval = build (flagged (oldval), int62 (oldval) * n.val());
if (v.compare_exchange_strong (oldval, newval)) {
break;
}
}
return *this;
}
int62_t& operator/= (int62_t n) {
while (1) {
int64_t oldval (v);
int64_t newval = build (flagged (oldval), int62 (oldval) / n.val());
if (v.compare_exchange_strong (oldval, newval)) {
break;
}
}
return *this;
}
int62_t& operator%= (int62_t n) {
while (1) {
int64_t oldval (v);
int64_t newval = build (flagged (oldval), int62 (oldval) % n.val());
if (v.compare_exchange_strong (oldval, newval)) {
break;
}
}
return *this;
}
};
namespace std {