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[core] Update clamp functions to allow mixed but comparable types (#11828)

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This commit is contained in:
Clyde Stubbs
2025-11-11 12:15:44 +10:00
committed by GitHub
parent 1539b43074
commit 7a700ca077
1 changed files with 8 additions and 2 deletions
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10
esphome/core/helpers.h
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@@ -1174,12 +1174,18 @@ template<class T> using ExternalRAMAllocator = RAMAllocator<T>;
* Functions to constrain the range of arithmetic values.
*/
template<std::totally_ordered T> T clamp_at_least(T value, T min) {
template<typename T, typename U>
concept comparable_with = requires(T a, U b) {
{ a > b } -> std::convertible_to<bool>;
{ a < b } -> std::convertible_to<bool>;
};
template<std::totally_ordered T, comparable_with<T> U> T clamp_at_least(T value, U min) {
if (value < min)
return min;
return value;
}
template<std::totally_ordered T> T clamp_at_most(T value, T max) {
template<std::totally_ordered T, comparable_with<T> U> T clamp_at_most(T value, U max) {
if (value > max)
return max;
return value;