sscanf not working , why?

[baumann]

hi,
1) first test program code

#include <stdio.h>

int main(void)
{
char * file = "aaa 23 32 m 2.23 ammasd";
int i2,i3;

float f;
char firststr[23];
char thirdchar;
char laststr[23];
sscanf(file,"%s ",firststr) ;
printf("%s\n" ,firststr);
sscanf(file,"%i ",&i2);
printf("%i\n",i 2);

sscanf(file,"%i ",&i3);
printf("%i\n",i 3);

sscanf(file,"%c ", &thirdchar);
printf("%c\n",t hirdchar);
return 0;
}
the prog doesn't print 23 32 ,it emits the result

aaa
-1073748344
1073792608
a

why?

while
2) second test program code

#include <stdio.h>

int main(void)
{
char * file = "aaa 23 32 m 2.23 ammasd";
int i2,i3;

float f;
char firststr[23];
char thirdchar;
char laststr[23];
int count;
count;
/*sscanf(file,"% s",firststr) ;
printf("%s\n" ,firststr);
sscanf(file,"%i ",&i2);
printf("%i\n",i 2);

sscanf(file,"%i ",&i3);
printf("%i\n",i 3);

sscanf(file,"%c ", &thirdchar);
printf("%c\n",t hirdchar);*/
count =
sscanf(file,"%s %i%i%c%f%s",fir ststr,&i2,&i3,& thirdchar,&f,la ststr);
printf("count:% d, %s %i %i %c %f %s\n", count, firststr, i2,i3,
thirdchar,f,las tstr);
return 0;
}

gives me the result

count:4, aaa 23 32 36.759842 å…°

how can i get the right result? thanks

baumann@pan

[Keith Thompson]

pete <pf*****@mindsp ring.com> writes:

Martin Ambuhl wrote:

baumann@pan wrote:

> also the msdn library vs.net 2003 has the example
>
> #include <stdio.h>
> void main( void )

^^^^
Anything giving illegal definitions of main should not be used.

I don't think that's illegal.
I think it falls under the clause

N869
5.1.2.2.1 Program startup
[#1]
"or in some other implementation-defined manner."

Which makes it legal only if the implementation defines it to be
legal, i.e., if the implementation *explicitly* documents it supports
"void main(void)". I don't know whether whatever compiler the library
is used with actually documents this (I sincerely hope it doesn't).

Of course, even if it's legal, that doesn't imply that it's not evil.

--
Keith Thompson (The_Other_Keit h) ks***@mib.org <http://www.ghoti.net/~kst>
San Diego Supercomputer Center <*> <http://users.sdsc.edu/~kst>
We must do something. This is something. Therefore, we must do this.