char* utoa(unsigned int val, char *s, int radix)
The function utoa() converts the unsigned integer value from val
into an ASCII representation that will be stored under s
. The caller is responsible for providing sufficient storage in s
.
The minimal size of the buffer s
depends on the choice of radix. For example, if the radix is 2 (binary), you need to supply a buffer with a minimal length of 8 * sizeof (unsigned int) + 1 characters, i.e. one character for each bit plus one for the string terminator. Using a larger radix will require a smaller minimal buffer size.
If the buffer is too small, you risk a buffer overflow.
radix
as base, which may be a number between 2 (binary conversion) and up to 36. If radix
is greater than 10, the next digit after '9'
will be the letter 'a'
.The utoa() function returns the pointer passed as s
.