Function ConvertHexNibbleToByte

src/string.cpp:551–557

* Convert a single hex-nibble to a byte. * * @param c The hex-nibble to convert. * @return The byte the hex-nibble represents, or -1 if it is not a valid hex-nibble. */

 * @return The byte the hex-nibble represents, or -1 if it is not a valid hex-nibble.
 */
static int ConvertHexNibbleToByte(char c)
{
	if (c >= '0' && c <= '9') return c - '0';
	if (c >= 'A' && c <= 'F') return c + 10 - 'A';
	if (c >= 'a' && c <= 'f') return c + 10 - 'a';
	return -1;
}

/**
 * Convert a hex-string to a byte-array, while validating it was actually hex.