ByteSwap

Reverse byte order for specific datum sizes. Note that the byte-swap approach avoids alignment issues, so is probably faster overall than a traditional 'shift' implementation.

ubyte[] x = [0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08];

auto a = x.dup;
ByteSwap.swap16(a);
assert(a == [cast(ubyte) 0x02, 0x01, 0x04, 0x03, 0x06, 0x05, 0x08, 0x07]);

auto b = x.dup;
ByteSwap.swap32(b);
assert(b == [cast(ubyte) 0x04, 0x03, 0x02, 0x01, 0x08, 0x07, 0x06, 0x05]);

auto c = x.dup;
ByteSwap.swap64(c);
assert(c == [cast(ubyte) 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01]);

struct ByteSwap {

static void swap16(void[] dst);

static void swap32(void[] dst);

static void swap64(void[] dst);

static void swap80(void[] dst);

static void swap16(void* dst, size_t bytes);

static void swap32(void* dst, size_t bytes);

static void swap64(void* dst, size_t bytes);

static void swap80(void* dst, size_t bytes);

}

Members

Static functions

swap16 void swap16(void[] dst): Reverses two-byte sequences. Parameter dst imples the number of bytes, which should be a multiple of 2
swap16 void swap16(void* dst, size_t bytes): Reverses two-byte sequences. Parameter bytes specifies the number of bytes, which should be a multiple of 2
swap32 void swap32(void[] dst): Reverses four-byte sequences. Parameter dst implies the number of bytes, which should be a multiple of 4
swap32 void swap32(void* dst, size_t bytes): Reverses four-byte sequences. Parameter bytes specifies the number of bytes, which should be a multiple of 4
swap64 void swap64(void[] dst): Reverse eight-byte sequences. Parameter dst implies the number of bytes, which should be a multiple of 8
swap64 void swap64(void* dst, size_t bytes): Reverse eight-byte sequences. Parameter bytes specifies the number of bytes, which should be a multiple of 8
swap80 void swap80(void[] dst): Reverse ten-byte sequences. Parameter dst implies the number of bytes, which should be a multiple of 10
swap80 void swap80(void* dst, size_t bytes): Reverse ten-byte sequences. Parameter bytes specifies the number of bytes, which should be a multiple of 10

ByteSwap

Members

Static functions

Meta

Source