Gets, Isalnum, Gets isalnum – Zilog ZUSBOPTS User Manual
Page 447: Synopsis, Returns, Example
UM017105-0511
Standard Functions
Zilog Developer Studio II – ZNEO™
User Manual
419
gets
Reads characters from the input stream into the array pointed to by
s
, until end-of-file is
encountered or a new-line character is read. The new-line character is discarded, and a null
character is written immediately after the last character read into the array.
Synopsis
#include
char *gets(char *s);
Returns
The value of
s
, if successful. If a read error occurs during the operation, the array contents
are indeterminate, and a null pointer is returned.
Example
char *r;
char buf [80];
r=gets(buf);
if (r==NULL)
/*No input*/
The UART must be initialized using the Zilog
init_uart()
function. See the
isalnum
Tests for any character for which
isalpha
or
isdigit
is true.
Synopsis
include
int isalnum(int c);
Example
int r;
char c='a';
r=isalnum(c);
Note: