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Sonicadvance1 · Joined: 13 Oct 2005 Posts: 10

I'm trying to change a int to char as the title suggests.I'v been getting on fine up untill now but I can't seem to get a function to work that changes an int to char.Think anyone can help me out with this?

ChaosKnight · Joined: 14 Apr 2005 Posts: 142 Location: Florida, USA

You can be lazy and do this:

Fanjita · Joined: 28 Sep 2005 Posts: 217

The line

char *MyChars = (char *)i;

in the second example should read

char *MyChars = (char*)&i;

or you'll get a crash :)

Sonicadvance1 · Joined: 13 Oct 2005 Posts: 10

Should have named this topic "Int to String",woops :P

Fanjita · Joined: 28 Sep 2005 Posts: 217

This will work if you want the output in hex:

void numtohex8(char *dst, int n)
{
int i;
static char hex[]="0123456789ABCDEF";
for (i=0; i<8; i++)
{
dst[i]=hex[(n>>((7-i)*4))&15];
}
}

Credit for this goes to Abu - it was in his hello world code. You can easily adapt it if you want a shorter output.

Remember to null-terminate the string afterwards : *dst[8] = '\0';

ChaosKnight · Joined: 14 Apr 2005 Posts: 142 Location: Florida, USA

raf · Joined: 13 Oct 2005 Posts: 57

mrbrown · Joined: 17 Jan 2004 Posts: 1536

Er, although this is a software development forum, it is not a forum on discussing the fundamentals of C. If there's a compiler-specific issue then that can be discussed, but please redirect budding programmers to a more appropriate website.

Locked.