---------- 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 BSD
gcvt
ECVT(3) Library Functions Manual ECVT(3)NAME
ecvt, fcvt, gcvt - output conversion
SYNOPSIS
char *ecvt(value, ndigit, decpt, sign)
double value;
int ndigit, *decpt, *sign;
char *fcvt(value, ndigit, decpt, sign)
double value;
int ndigit, *decpt, *sign;
char *gcvt(value, ndigit, buf)
double value;
char *buf;
DESCRIPTION
Ecvt converts the value to a null-terminated string of ndigit ASCII digits and returns a pointer thereto. The position of the decimal
point relative to the beginning of the string is stored indirectly through decpt (negative means to the left of the returned digits). If
the sign of the result is negative, the word pointed to by sign is non-zero, otherwise it is zero. The low-order digit is rounded.
Fcvt is identical to ecvt, except that the correct digit has been rounded for Fortran F-format output of the number of digits specified by
ndigits.
Gcvt converts the value to a null-terminated ASCII string in buf and returns a pointer to buf. It attempts to produce ndigit significant
digits in Fortran F format if possible, otherwise E format, ready for printing. Trailing zeros may be suppressed.
SEE ALSO printf(3)BUGS
The return values point to static data whose content is overwritten by each call.
7th Edition May 15, 1985 ECVT(3)
12-03-2012
