Json.operator=

// 1
bool operator==(const Json& other) const noexcept;

// 2
template<typename  T>
requires (!std::is_same_v<T, Json>)
bool operator==(const T& other) const noexcept;

Comparison Operations

1. Same-type comparison (between two Json objects): Returns true if equal, false otherwise.
2. Cross-type comparison (between Json and any other type): Returns true if conversion and comparison succeed, otherwise false.

Comparison Rules

1. Same-type (Json vs Json) - First checks if internal data types match. - If types match, delegates to the underlying type's comparison: - std::vector/std::map comparisons are recursive. - Floating-point comparisons are strict (no epsilon tolerance).

2. Cross-type (Json vs T) - Only invoked if T is not Json (otherwise, delegates to same-type comparison). - Rules applied in order: 1. JSON-native types: Directly compares internal data (returns false if types differ). 2. Integer/enum types: - Returns false if not a Num. - Otherwise, rounds to nearest integer and compares. 3. Floating-point types: - Returns false if not a Num. - Otherwise, performs exact comparison. 4. Str-compatible types: - Returns false if not a Str. - Converts to string_view for comparison. 5. Convertible to Json-constructible types: - Attempts conversion to T (if T supports comparison). 6. Types convertible to Json: - Converts T to Json and delegates to same-type comparison. 7. Fallback: Returns false if none of the above apply.

Exception Safety

No-throw guarantee.

Complexity

Linear (full content comparison).

Version

Since v3.0.0 .