vpEndian Namespace Reference

Functions
VISP_EXPORT uint16_t	swap16bits (uint16_t val)
VISP_EXPORT uint32_t	swap32bits (uint32_t val)
VISP_EXPORT uint64_t	swap64bits (uint64_t val)
VISP_EXPORT float	swapFloat (float f)
VISP_EXPORT double	swapDouble (double d)
VISP_EXPORT bool	isBigEndian ()
VISP_EXPORT uint16_t	reinterpret_cast_uchar_to_uint16_LE (unsigned char *const ptr)

Function Documentation

isBigEndian()

bool vpEndian::isBigEndian

(

)

Return true if the executed code runs on a big-endian platform.

Examples

catchEndian.cpp.

Definition at line 175 of file vpEndian.cpp.

reinterpret_cast_uchar_to_uint16_LE()

uint16_t vpEndian::reinterpret_cast_uchar_to_uint16_LE

(

unsigned char *const

ptr

)

Reinterpret an array of unsigned char stored in a little-endian way into an uint16_t value.

Warning

Pointer must be valid and 16-bit must be correctly readable.

Examples

catchEndian.cpp.

Definition at line 161 of file vpEndian.cpp.

References swap16bits().

swap16bits()

uint16_t vpEndian::swap16bits

(

uint16_t

val

)

Swap 16 bits by shifting to the right the first byte and by shifting to the left the second byte.

Examples

catchColorConversion.cpp, and catchEndian.cpp.

Definition at line 48 of file vpEndian.cpp.

Referenced by visp::cnpy::create_npy_header(), visp::cnpy::create_npy_header_string(), visp::cnpy::npz_save(), visp::cnpy::npz_save(), visp::cnpy::parse_zip_footer(), vpIoTools::readBinaryValueLE(), vpIoTools::readBinaryValueLE(), reinterpret_cast_uchar_to_uint16_LE(), vpIoTools::writeBinaryValueLE(), and vpIoTools::writeBinaryValueLE().

swap32bits()

uint32_t vpEndian::swap32bits

(

uint32_t

val

)

Swap 32 bits by shifting to the right the first 2 bytes and by shifting to the left the last 2 bytes.

Examples

catchEndian.cpp.

Definition at line 60 of file vpEndian.cpp.

Referenced by visp::cnpy::npz_save(), visp::cnpy::npz_save(), visp::cnpy::parse_zip_footer(), vpIoTools::readBinaryValueLE(), vpIoTools::readBinaryValueLE(), vpIoTools::writeBinaryValueLE(), and vpIoTools::writeBinaryValueLE().

swap64bits()

uint64_t vpEndian::swap64bits

(

uint64_t

val

)

Swap 64 bits by shifting to the right the first 4 bytes and by shifting to the left the last 4 bytes.

Examples

catchEndian.cpp.

Definition at line 76 of file vpEndian.cpp.

swapDouble()

double vpEndian::swapDouble

(

double

d

)

Swap a double, the union is necessary because of the representation of a double in memory in IEEE 754.

Examples

catchEndian.cpp.

Definition at line 128 of file vpEndian.cpp.

Referenced by vpIoTools::readBinaryValueLE(), and vpIoTools::writeBinaryValueLE().

swapFloat()

float vpEndian::swapFloat

(

float

f

)

Swap a float, the union is necessary because of the representation of a float in memory in IEEE 754.

Examples

catchEndian.cpp.

Definition at line 104 of file vpEndian.cpp.

Referenced by vpIoTools::readBinaryValueLE(), and vpIoTools::writeBinaryValueLE().