float to byte array
Solved
Mobile and Embedded
-
wrote on 27 Mar 2017, 13:35 last edited by
Hello,
I am using qt4.8.I wanted to convert a float value into byte array.
eg. float val = 20000
val in hex = 46 9c 40 00 (00 40 9c 46 Little Endian)
val in int = 70 156 64 00 (00 64 156 70)
So basically I want the value (val in int) to be in array. ii.e array[0] = 00 , array [1] = 64, array[2] = 156, array[3] = 70. -
Hello,
I am using qt4.8.I wanted to convert a float value into byte array.
eg. float val = 20000
val in hex = 46 9c 40 00 (00 40 9c 46 Little Endian)
val in int = 70 156 64 00 (00 64 156 70)
So basically I want the value (val in int) to be in array. ii.e array[0] = 00 , array [1] = 64, array[2] = 156, array[3] = 70.@sandycoolxyz said in float to byte array:
union { float val; char * array; } conversion; conversion.val = 20000; QByteArray byteArray = QByteArray::fromRawData(conversion.array, sizeof(float));
or
float val = 20000; QByteArray byteArray = QByteArray::fromRawData(reinterpret_cast<char *>(&val), sizeof(float));
or
float val = 20000; QByteArray byteArray; QDataStream out(&byteArray); out << val;
1/2