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details Fixed Size Integer Types VIGRA

Typedefs

typedef detail::SelectIntegerType< 16, detail::SignedIntTypes >::type Int16
 16-bit signed int
 
typedef detail::SelectIntegerType< 32, detail::SignedIntTypes >::type Int32
 32-bit signed int
 
typedef detail::SelectIntegerType< 64, detail::SignedIntTypes >::type Int64
 64-bit signed int
 
typedef detail::SelectIntegerType< 8, detail::SignedIntTypes >::type Int8
 8-bit signed int
 
typedef detail::SelectBiggestIntegerType< detail::SignedIntTypes >::type IntBiggest
 the biggest signed integer type of the system
 
typedef detail::SelectIntegerType< 16, detail::UnsignedIntTypes >::type UInt16
 16-bit unsigned int
 
typedef detail::SelectIntegerType< 32, detail::UnsignedIntTypes >::type UInt32
 32-bit unsigned int
 
typedef detail::SelectIntegerType< 64, detail::UnsignedIntTypes >::type UInt64
 64-bit unsigned int
 
typedef detail::SelectIntegerType< 8, detail::UnsignedIntTypes >::type UInt8
 8-bit unsigned int
 
typedef detail::SelectBiggestIntegerType< detail::UnsignedIntTypes >::type UIntBiggest
 the biggest unsigned integer type of the system
 

Detailed Description

Since the C++ standard does only specify minimal sizes for the built-in integer types, one cannot rely on them to have a specific size. But pixel types with a specific size are often required in image processing, especially when reading or writing binary files. The VIGRA typedefs are guaranteed to have exactly the correct size. If the system does not provide a suitable type, the typedef will evaluate to Int_type_not_supported_on_this_platform.

© Ullrich Köthe (ullrich.koethe@iwr.uni-heidelberg.de)
Heidelberg Collaboratory for Image Processing, University of Heidelberg, Germany

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