Operator struct template to check if an expression does not throw any exception. More...

#include <micro-os-plus/micro-test-plus.h>

Inheritance diagram for micro_os_plus::micro_test_plus::detail::nothrow_< Callable_T >:

Public Member Functions
constexpr	nothrow_ (const Callable_T &func)
	Constructs a nothrow checking operator for the given callable.
constexpr	operator bool () const
	Conversion operator to boolean.

Private Attributes
const bool	value_ {}
	Stores the result of the callable invocation.

Detailed Description

template<class Callable_T>
struct micro_os_plus::micro_test_plus::detail::nothrow_< Callable_T >

This struct checks whether invoking the given callable completes without throwing an exception. The check is performed at construction time, with the result cached for reporting and composition. Use this when a test must verify that an operation is exception-safe.

Template Parameters

Callable_T The type of the callable object to be invoked.

Definition at line 701 of file detail.h.

Constructor & Destructor Documentation

◆ nothrow_()

template<class Callable_T>

micro_os_plus::micro_test_plus::detail::nothrow_< Callable_T >::nothrow_ ( const Callable_T & func )

explicitconstexpr

Parameters

func	The callable object to be invoked.

Invokes func inside a try/catch block. If func completes without throwing, the result is true; if any exception is thrown the result is false. The result is passed to the callable_op_ base class constructor.

Definition at line 608 of file detail-inlines.h.

        : callable_op_{ [&func]
      {
        try
          {
            func ();
          }
        catch (...)
          {
            return false;
          }
        return true;
      }() }
    {
    }

References micro_os_plus::micro_test_plus::detail::callable_op_::callable_op_(), and nothrow_().

Referenced by nothrow_().

Member Function Documentation

◆ operator bool()

micro_os_plus::micro_test_plus::detail::callable_op_::operator bool ( ) const

nodiscardconstexprinherited

Parameters: None.

Returns: The result of the callable invocation.

Returns the pre-computed boolean result stored by the derived operator's constructor.

Definition at line 534 of file detail-inlines.h.

    {
      return value_;
    }

References value_.

Member Data Documentation

◆ value_

const bool micro_os_plus::micro_test_plus::detail::callable_op_::value_ {}

privateinherited

Definition at line 621 of file detail.h.

621{};

Referenced by callable_op_(), and operator bool().

The documentation for this struct was generated from the following files:

Public Member Functions