Print variables in hexadecimal or decimal format

Question

Currently, when I print the value of a variable v in GDB (print v) I get an integer.

Is it possible to have GDB print such integer variables in hexadecimal or binary?

score 225 · Accepted Answer · edited Dec 24 '19 at 06:44

225

Sure it is. Try these:

# Hexadecimal
p/x variable

# Binary
p/t variable

edited Dec 24 '19 at 06:44

remcycles

answered Mar 12 '12 at 17:28

cnicutar

2

if you are using DDD(data display debuger, a GUI wrapper for a debugger like GDB), you can use the hex format also in graphic display by doing `graph disp /x val1`. Beware you should put space before `/x`. otherwise it doesn't work. – Chan Kim Sep 18 '17 at 06:10
3

and to set the default output radix setting, see https://stackoverflow.com/questions/6618670/how-to-make-gdb-print-out-all-values-in-hexadecimal-mode – Chan Kim Sep 10 '18 at 01:19
To show the values of an [array](https://www.sourceware.org/gdb/onlinedocs/gdb/Arrays.html) in hex, use `p/x *my_arr@arr_len`. – Matthias Braun Jun 16 '23 at 22:07

1 Answers1