How to write code for convert 2,B,C --> 2BC ?

[sorasit46]

2,B,C = Hex. Value ( Dec. = 700 )
How to write code for convert 2,B,C --> 2BC ?

regards

[gpsmikey]

Assuming you mean you have those characters in a buffer of some sort, see the functions atoi(), atol() and atoi32() in the compiler manual - they convert a null terminated string into a number.

mikey
_________________
mikey
-- you can't have too many gadgets or too much disk space !
old engineering saying: 1+1 = 3 for sufficiently large values of 1 or small values of 3

[andrewg]

atoi, atol and atoi32 all require a "0x" in the buffer to decode hex data. That might be OK, maybe not...

strtol/strtoul support a radix argument.

Or, you can do the conversion yourself. It helps to break the problem down into two steps:

1. Convert ASCII character to number:

[gpsmikey]

Well, I'm glad to see Andrew was more awake than I was - I started looking for scanf() and realized we don't have that. His approach is probably the best unless you want to create a buffer with "0x" in it then append the character string. You also may want to consider how to handle a backspace
for example if these numbers are being entered from a keyboard.

mikey
_________________
mikey
-- you can't have too many gadgets or too much disk space !
old engineering saying: 1+1 = 3 for sufficiently large values of 1 or small values of 3

[sorasit46]

Thanks for the help!