convert byte array to decimal number

[paul51]

I am trying to convert a byte array to a decimal.

The VC++ .net code is:

BYTE OUT_VAL_1[4];
OUT_VAL_1[0]=0xBB;
OUT_VAL_1[1]=0xD3;
OUT_VAL_1[2]=0x01;
OUT_VAL_1[3]=0x3F;

//made many attempts, with no luck.
//the expected conversion is .507137

Thanks

 

[dEVooXiAm]

and.... where exactly does you conversion takes place?

------------------
When you do it, do it right.

 

[paul51]

My conversion attempts did not work.

I tried many things and deleted them. The latest is:

unsigned char OUT_VAL_1[] = __gc new unsigned char[4];

//BYTE OUT_VAL_1[4];
OUT_VAL_1[0]=0xBB;
OUT_VAL_1[1]=0xD3;
OUT_VAL_1[2]=0x01;
OUT_VAL_1[3]=0x3F;

float A=99;
A=BitConverter::ToSingle(OUT_VAL_1,0);

error C2440: 'initializing' : cannot convert from 'unsigned char *' to 'unsigned char []'

 

[Miros]

I'd have used a union:

union
{
char[4] byteval;
short[2] shortval;
float floatval;
}