---------- Post updated at 09:57 AM ---------- Previous update was at 09:36 AM ----------
btw i still hav a question abt tis program, it is a program to count then number of occurrences of each digit. At the "while" part, why shud we nid to put [c-'0'] and not [c] for the ++ndigit to execute tis program?
Code:
#include <stdio.h>
int main()
{
int i, c;
int ndigit[10];
for (i = 0; i < 100; ++i)
ndigit[i] = 0;
while ((c = getchar()) != EOF)
++ndigit[c-'0'];
printf("digits =");
for (i = 0; i < 10; ++i)
printf(" %d", ndigit[i]);
}
hey everyone!
got another problem here.
how would i use the getchar() in a prompt:
Press any key to continue
the way i did it was to define a char variable named ch
and then wrotechar ch
...
ch = getchar();
printf("Press any key to continue");
getchar():if you press enter it exits, but... (2 Replies)
hi i am a beginner to C
i have encountered a problem with my assignment, and i have researched it on the internet, but unfortunately i didn't find anything related to that.
i am writing a simple program that takes user's input by prompt command, and parse the whole line into an array of... (1 Reply)
hi all ,
could any tell me the diffrence between
main()
{
char c='h';
printf("%c",c);
}
and main()
{
char c = 'h';
printf("c",putchar(c));
} (2 Replies)
There's a replacement in bash for getchar or get functions of C and C++?Those functions read the next char avaliable in the input stream.
I've tried something like:
OLD_STTY=`stty -g`
stty cbreak -echo
look=`dd if=/dev/tty bs=1 count=1 2>/dev/null`
stty $OLD_STTY
But it is not working... (3 Replies)
I don't know how to do this:
printf("creazione nuovo messaggio\n");
printf("insert dest\n");
scanf("%s",dest);
printf("insert object\n");
scanf("%s",ogg);
printf("inserire text\n");
scanf("%s",test);
... (7 Replies)
Hi,
I would like to read an input from keyboard using getchar. However, if no input (No Carriage return/new line none whatsoever) is given after say, 5 seconds, I would like to skip the getchar and move on. How do I do this in C. I'm using GNU compiler set.
Thanks, (5 Replies)
I wanted to make a simple program that writes chracters in a file but i didnt want to press enter .So i found the getchar which doesnt need enter.If i pass (int) getchar to putc ,in the file it shows a P character.The (int) getchar says it is equal to1734747216 so i do (int) getchar-1734747216... (4 Replies)
Hi,
What happens to process state when getchar() is called? I wrote a C code in which I call getchar() somewhere down the road. I forgot about that, I started the process, put it in bg and disowned it using "disown". Now, how do I see where that process has gone/how do kill it?
Thanks,
Amrut (1 Reply)
For example, in this command:
ls /etc/rc0.d/ -print
ls /etc/rc0.d/ -printfThe outputs are quite different, why? (7 Replies)
Discussion started by: Henryyy
7 Replies
LEARN ABOUT ULTRIX
sscanf
scanf(3int)scanf(3int)Name
scanf, fscanf, sscanf - convert formatted input
Syntax
#include <stdio.h>
int scanf( format [, pointer ] ... )
char *format;
int fscanf( stream, format [, pointer ] ... )
FILE *stream;
char *format;
int sscanf( s, format [, pointer ] ... )
char *s, *format;
Description
The international functions and are similar to the standard I/O functions. The difference is that the international functions allow you to
use the %digit$ conversion character in place of the I% character you use in the standard I/O functions. The digit is a decimal digit n
from 1 to 9. The international functions apply conversions to the n th argument in the argument list, rather than to the next unused argu-
ment.
You can use % conversion character in the international functions. However, you cannot mix the % conversion character with the %digit$
conversion character in a single call.
In all cases, uses the radix character and collating sequence that is defined by the last successful call to category or If the radix or
collating sequence is undefined, the function uses the C locale definitions.
International Environment
LC_COLLATE Contains the user requirements for language, territory, and codeset for the character collation format. affects the behav-
ior of regular expressions and the string collation functions in If is not defined in the current environment, provides the
necessary default.
LC_NUMERIC If this environment is set and valid, uses the international language database named in the definition to determine radix
character rules.
LANG If this environment variable is set and valid uses the international language database named in the definition to determine
collation and character classification rules. If or is defined, their definitions supersede the definition of LANG.
Examples
The following shows an example of using the function:
scanf("%2$s %1$d", integer, string)
If the input is `` january 9 '', the function assigns 9 to and ``january'' to
Return Values
The function returns the number of successfully matched and assigned input fields. This number can be zero if the function encounters
invalid input characters, as specified by the conversion specification, before it can assign input characters.
If the input ends before the first conflict or conversion, returns EOF. These functions return EOF on end of input and a short count for
missing or invalid data items.
Environment
In POSIX mode, the E, F, and X formats are treated the same as the e, f, and x formats, respectively; otherwise, the upper-case formats
expect double, double, and long arguments, respectively.
See Alsointro(3int), setlocale(3), strtod(3), strtol(3), printf(3int), getc(3s), printf(3s), scanf(3s)
Guide to Developing International Software
scanf(3int)
12-03-2012
