macro_rules! AS_DIGIT { ($string:expr) => { ... }; }
Expand description
Converts the byte at the current pointer in the string to its corresponding integer value.
§Parameters
string
: A mutable reference to a struct containing a pointer to a byte array.
§Return
- Returns the integer value of the byte at the current pointer in the string. The byte is assumed to be in the ASCII range (0-9), so the function subtracts the ASCII value of ‘0’ (48) to convert it to its integer representation.