c - Convert char with hex value to String

Question

If I have a character like the following:

wchar_t c = 'x0A'

What's an easy way to convert it so that it becomes something like:

wchar_t dst[] ==> "0A"

Basically, the hex value of c becomes a string value.

Answer 1

The integral value of c would be 0x0A (10 in base 10). You can use sprintf to format it as hex:

wchar_t c = 'x0A';
int c_val = c;
char string[3];

sprintf( string, "%.2X", c_val );

Note the intermediate c_val variable is not needed, only added for clarity

or you can do it manually:

int c_low = c & 0x0F;
int c_high = ( c & 0xF0 ) >> 4;

...translate c_low and c_high to its textual representation...