char to int ASCII hex

[Seitec]

Hello, I would like ask. I need convert e.g. char "AE" to unsigned short int 0x4145? do any body pleas know how I can convert this? Thank you very much.

Message Edited by Seitec on 2009-03-13 10:53 PM

[roberto_m]

Thank you!

It is very easy

[roberto_m]

And how can I convert a counter (stored in an unsigned char)  to a string?

I mean:

0xFF >> 255 >> 32:35:35 (ASCII values)

[J2MEJediMaster]

Check out FAQ-27705 for source code that converts a binary value to a text string.

---Tom

[Seitec]

Thank you very much.Great thank you .

[bigmac]

Sorry about that. I was somewhat confused with the initialisation process allowed within the definition of an array variable.

Another alternative to the use of the copy functions might be to load each of the two array elements separately -

val.a[0] = 'A';

val.a[1] = 'E';

or perhaps create a function -

unsigned short getval( char *s)
{
ascseq temp;

temp.a[0] = s[0];
temp.a[1] = s[1];
return temp.b;
}

with the following usage -

unsigned short i;

i = getval( "AE" );

Regards,

Mac

Message Edited by bigmac on 2009-03-15 05:04 AM

[bigmac]

Hello,

Assuming big endian data format, simply create a union between a char array and an unsigned short variable.

typedef union {

    char a[3];  // Allow for null termination

    unsigned short b;

} ascseq;

ascseq val;     // Define variable

To load data to the array -

    val.a[] = "AE";

To read the equivalent integer value, use val.b

Regards,

Mac

[kef · Accepted solution]

   val.a[] = "AE";

I think you meant here

   strcpy(val.a, "AE");

or

   memcpy(val.a, "AE", 2);