Here are a few title options, keeping in mind the focus on contextual conversion to bool in C : Direct and Concise: * When Does C Contextually Convert to Bool? * Beyond the Cast: Understanding Co

Contextual Conversion to Bool Without a Cast

You have a class with an explicit conversion to bool. While this requires a cast for assignment to a bool variable, it can be used directly in conditionals.

Additional Contexts for Contextual Conversion

The C standard defines additional contexts where a value may be contextually converted to bool:

Statements:

• if (t) /* statement ;`
• for (;t;) /* statement ;`
• while (t) /* statement ;`
• do { /* block */ } while (t);

Expressions:

• !t
• t && t2
• t || t2
• t ? "true" : "false"

Compile-Time Tests (only if t's conversion operator is constexpr):

• static_assert(t);
• noexcept(t)
• explicit(t)
• if constexpr (t)

Algorithms and Concepts:

• NullablePointer T
• Algorithm predicate arguments ([&](auto){ return t; })
• Algorithm comparator arguments ([&](auto){ return t; })

Beware of Const/Non-Const Confusion:
Mixing const and non-const conversion operators can lead to unexpected behavior. Refer to the linked questions for more details.

The above is the detailed content of Here are a few title options, keeping in mind the focus on contextual conversion to bool in C : Direct and Concise: * When Does C Contextually Convert to Bool? * Beyond the Cast: Understanding Co. For more information, please follow other related articles on the PHP Chinese website!