Returns the current character ascii code, that means the code of the character at the current position. Returns 0 at end of file or when the buffer is empty.
int the_char(int nth);
Returns the ascii code of the nth character of the buffer, 0
for illegal position or at end of file. the
\_char definition is
Returns the next character ascii code, 0 if the current position or
the next one is the end of file, or if the buffer is empty.
\_char definition is equivalent to:
Returns the previous character ascii code, or 0 at the beginning of the file or if the buffer is empty.