Re: Getting user input in Linux?

On 31 Jan, 03:17, Zach <net...@xxxxxxxxx> wrote:

I run Linux 2.6.18 and am seeking a way in C to get user input. I want
them to have the chance to enter a value and have it assigned to a
variable.

I currently have:

int* s1;

printf("Enter first integer: %d\n",s1);
scanf(&s1);

When I run this it automatically enters 0. It never pauses and thus
does not allow me to type in a value.

note scanf() can be tricky. It might be better to use fgets()
followed by atoi() or (better) strtol(). Read the documentation for
them.

Oh, and try and get a copy of K&R


--
Nick Keighley

The fscanf equivalent of fgets is so simple
that it can be used inline whenever needed:-
char s[NN + 1] = "", c;
int rc = fscanf(fp, "%NN[^\n]%1[\n]", s, &c);
if (rc == 1) fscanf("%*[^\n]%*c);
if (rc == 0) getc(fp);

Dan Pop
.

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