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utils.go
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/
utils.go
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package panama
import (
"encoding/binary"
)
// Endianness option
const littleEndian bool = true
func getu32(ptr []byte) uint32 {
if littleEndian {
return binary.LittleEndian.Uint32(ptr)
} else {
return binary.BigEndian.Uint32(ptr)
}
}
func putu32(ptr []byte, a uint32) {
if littleEndian {
binary.LittleEndian.PutUint32(ptr, a)
} else {
binary.BigEndian.PutUint32(ptr, a)
}
}
func bytesToUint32s(b []byte) []uint32 {
size := len(b) / 4
dst := make([]uint32, size)
for i := 0; i < size; i++ {
j := i * 4
if littleEndian {
dst[i] = binary.LittleEndian.Uint32(b[j:])
} else {
dst[i] = binary.BigEndian.Uint32(b[j:])
}
}
return dst
}
func uint32sToBytes(w []uint32) []byte {
size := len(w) * 4
dst := make([]byte, size)
for i := 0; i < len(w); i++ {
j := i * 4
if littleEndian {
binary.LittleEndian.PutUint32(dst[j:], w[i])
} else {
binary.BigEndian.PutUint32(dst[j:], w[i])
}
}
return dst
}