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AK: Add Checked::addition_would_overflow()
And switch the two-argument version of Checked::multiplication_would_overflow() to use __builtin_mul_overflow_p(). This helps GCC optimize the code better.
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AK/Checked.h
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AK/Checked.h
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@ -234,13 +234,16 @@ public:
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return *this;
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}
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template<typename U, typename V>
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static bool addition_would_overflow(U u, V v)
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{
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return __builtin_add_overflow_p(u, v, (T)0);
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}
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template<typename U, typename V, typename X>
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static bool multiplication_would_overflow(U u, V v)
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{
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Checked checked;
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checked = u;
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checked *= v;
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return checked.has_overflow();
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return __builtin_mul_overflow_p(u, v, (T)0);
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}
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template<typename U, typename V, typename X>
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