40 lines
876 B
C
40 lines
876 B
C
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#pragma once
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namespace Pinetime {
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namespace Utility {
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template <class T>
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class DirtyValue {
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public:
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DirtyValue() = default; // Use NSDMI
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explicit DirtyValue(T const& v) : value {v} {
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} // Use MIL and const-lvalue-ref
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bool IsUpdated() {
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if (this->isUpdated) {
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this->isUpdated = false;
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return true;
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}
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return false;
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}
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T const& Get() {
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this->isUpdated = false;
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return value;
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} // never expose a non-const lvalue-ref
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DirtyValue& operator=(const T& other) {
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if (this->value != other) {
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this->value = other;
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this->isUpdated = true;
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}
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return *this;
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}
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private:
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T value {}; // NSDMI - default initialise type
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bool isUpdated {true}; // NSDMI - use brace initialisation
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};
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}
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}
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