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Crunch
A Message Definition Language for Getting Things Right
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Validates that a value is strictly negative (< 0). More...
#include <crunch_validators.hpp>
Static Public Member Functions | |
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template<typename T > requires (std::signed_integral<T> || std::floating_point<T>) && (!std::is_same_v<T, bool>) | |
| static constexpr auto | Check (T value, FieldId field_id) noexcept -> std::optional< Error > |
Validates that a value is strictly negative (< 0).