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# FLAC++/metadata.h: metadata object classes
[FLAC++/metadata.h: metadata interfaces]

## Compounds
class | FLAC::Metadata::Prototype
class | FLAC::Metadata::StreamInfo
class | FLAC::Metadata::Padding
class | FLAC::Metadata::Application
class | FLAC::Metadata::SeekTable
class | FLAC::Metadata::VorbisComment
class | FLAC::Metadata::CueSheet
class | FLAC::Metadata::Unknown
## [NOHEADER]
bool | operator== (const Prototype &) const
bool | operator== (const::FLAC__StreamMetadata &) const
bool | operator== (const::FLAC__StreamMetadata *) const
## [NOHEADER]
bool | operator!= (const Prototype &) const
bool | operator!= (const::FLAC__StreamMetadata &) const
bool | operator!= (const::FLAC__StreamMetadata *) const
## Functions
FLACPP_API Prototype * | clone (const Prototype *)
bool | is_valid () const
| operator const ::FLAC__StreamMetadata * () const

## Detailed Description

This module contains classes representing FLAC metadata blocks in memory.

The behavior closely mimics the C layer interface; be sure to read the detailed description of the C metadata object module.

Any time a metadata object is constructed or assigned, you should check is_valid() to make sure the underlying FLAC__StreamMetadata object was able to be created.

Warning:
  When the get_*() methods of any metadata object method return you a const pointer, DO NOT disobey and write into it. Always use the set_*() methods.

## Function Documentation

FLACPP_API Prototype* clone | ( | const Prototype * |  | ) |

| Create a deep copy of an object and return it.

bool FLAC::Metadata::Prototype::operator== | ( | const Prototype & |  | ) | const`[inline, inherited]`

| Check for equality, performing a deep compare by following pointers.

bool FLAC::Metadata::Prototype::operator== | ( | const::FLAC__StreamMetadata & |  | ) | const`[inline, inherited]`

| Check for equality, performing a deep compare by following pointers. Reimplemented in FLAC::Metadata::StreamInfo.

bool FLAC::Metadata::Prototype::operator== | ( | const::FLAC__StreamMetadata * |  | ) | const`[inline, inherited]`

| Check for equality, performing a deep compare by following pointers. Reimplemented in FLAC::Metadata::StreamInfo.

bool FLAC::Metadata::Prototype::operator!= | ( | const Prototype & |  | ) | const`[inline, inherited]`

| Check for inequality, performing a deep compare by following pointers.

bool FLAC::Metadata::Prototype::operator!= | ( | const::FLAC__StreamMetadata & |  | ) | const`[inline, inherited]`

| Check for inequality, performing a deep compare by following pointers. Reimplemented in FLAC::Metadata::StreamInfo.

bool FLAC::Metadata::Prototype::operator!= | ( | const::FLAC__StreamMetadata * |  | ) | const`[inline, inherited]`

| Check for inequality, performing a deep compare by following pointers. Reimplemented in FLAC::Metadata::StreamInfo.

bool FLAC::Metadata::Prototype::is_valid | ( |  | ) | const`[inline, inherited]`

| Returns `true` if the object was correctly constructed (i.e. the underlying FLAC__StreamMetadata object was properly allocated), else `false`.

FLAC::Metadata::Prototype::operator const ::FLAC__StreamMetadata * | ( |  | ) | const`[inline, inherited]`

  | Returns a pointer to the underlying FLAC__StreamMetadata object. This can be useful for plugging any holes between the C++ and C interfaces. Assertions:
      is_valid()