GDALDataset::Layers Class Reference

Class returned by GetLayers() that acts as a range of layers. More...

#include <gdal_priv.h>

Classes
class	Iterator
	Layer iterator. More...

Public Member Functions
Iterator	begin () const
	Return beginning of layer iterator. More...
Iterator	end () const
	Return end of layer iterator. More...
size_t	size () const
	Get the number of layers in this dataset. More...
OGRLayer *	operator[] (int iLayer)
	Fetch a layer by index. More...
OGRLayer *	operator[] (size_t iLayer)
	Fetch a layer by index. More...
OGRLayer *	operator[] (const char *pszLayername)
	Fetch a layer by name. More...

Friends
class	GDALDataset

Detailed Description

Class returned by GetLayers() that acts as a range of layers.

Since

GDAL 2.3

Member Function Documentation

begin()

GDALDataset::Layers::Iterator GDALDataset::Layers::begin

(

)

const

Return beginning of layer iterator.

Since

GDAL 2.3

end()

GDALDataset::Layers::Iterator GDALDataset::Layers::end

(

)

const

Return end of layer iterator.

Since

GDAL 2.3

operator[]() [1/3]

OGRLayer * GDALDataset::Layers::operator[]

(

int

iLayer

)

Fetch a layer by index.

The returned layer remains owned by the GDALDataset and should not be deleted by the application.

Parameters

iLayer

a layer number between 0 and size()-1.

Returns

the layer, or nullptr if iLayer is out of range or an error occurs.

Since

GDAL 2.3

operator[]() [2/3]

OGRLayer * GDALDataset::Layers::operator[]

(

size_t

iLayer

)

Fetch a layer by index.

The returned layer remains owned by the GDALDataset and should not be deleted by the application.

Parameters

iLayer

a layer number between 0 and size()-1.

Returns

the layer, or nullptr if iLayer is out of range or an error occurs.

Since

GDAL 2.3

operator[]() [3/3]

OGRLayer * GDALDataset::Layers::operator[]

(

const char *

pszLayerName

)

Fetch a layer by name.

The returned layer remains owned by the GDALDataset and should not be deleted by the application.

Parameters

pszLayerName

layer name

Returns

the layer, or nullptr if pszLayerName does not match with a layer

Since

GDAL 2.3

size()

size_t GDALDataset::Layers::size

(

)

const

Get the number of layers in this dataset.

Returns

layer count.

Since

GDAL 2.3

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

• gdal_priv.h
• gdaldataset.cpp