Assert
[Debugging]

assert functions and macros More...

Collaboration diagram for Assert:

Defines
#define	NS_ASSERT(condition)
#define	NS_ASSERT_MSG(condition, message)

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Detailed Description

assert functions and macros

The assert macros are used to verify at runtime that a certain condition is true. If it is not true, the program halts. These checks are built into the program only in debugging builds. They are removed in optimized builds.

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Define Documentation

#define NS_ASSERT

(

condition

)

Value:

do                                                            \
    {                                                           \
      if (!(condition))                                         \
        {                                                       \
          std::cerr << "assert failed. file=" << __FILE__ <<    \
            ", line=" << __LINE__ << ", cond=\""#condition <<   \
            "\"" << std::endl;                                  \
          int *a = 0;                                           \
          *a = 0;                                               \
        }                                                       \
    }                                                           \
  while (false)

Parameters:

condition

condition to verifiy.

At runtime, in debugging builds, if this condition is not true, the program prints the source file, line number and unverified condition and halts by dereferencing a null pointer.

Referenced by ns3::CopyObject(), ns3::TagBuffer::ReadU8(), ns3::Buffer::Buffer::Iterator::ReadU8(), ns3::Object::Unref(), ns3::TagBuffer::WriteU8(), and ns3::Buffer::Buffer::Iterator::WriteU8().

#define NS_ASSERT_MSG	(	condition,
		message		)

Value:

do                                            \
    {                                           \
      if (!(condition))                         \
        {                                       \
          std::cerr << message << std::endl;    \
          int *a = 0;                           \
          *a = 0;                               \
        }                                       \
    }                                           \
  while (false)

Parameters:

	condition	condition to verifiy.
	message	message to output

At runtime, in debugging builds, if this condition is not true, the program prints the message to output and halts by dereferencing a null pointer.

Referenced by ns3::rapidnet::AggWrap::New().