Getting stdout to work wz stdin just made : error

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4.2

Getting stdout to work wz stdin just made

Asked by Thibo in C Programming Language

Tags: error

Can i split the program into 2 parts stdin (user input) and stdout which correspond to the printing of number of trips, total kilometres and average trip length when the program exit either with Ctrl-D or an error condition?
<code>

#include <stdio.h>
#include <stdlib.h>
#include <process.h>

int main ( void )
{
char * line;
int startkm, endkm;
int i;
line = ( char * ) malloc ( 81 * sizeof ( char ) ) ;

while ( fgets ( line, sizeof line, stdin ) != NULL )
{
num_of_trips ++ ;
sscanf ( line, "%*[^\t]%d%*[^\t]%d%*[^\t]%*[^\n]", &startkm, &endkm ) ;

total += ( endkm - startkm ) ;
if ( startkm > endkm )
{
printf ( "\n Invalid. " ) ;
exit ( 1 ) ; // include <process.h>

} // end if

for ( i = 0 ; line[i] != '\n' && line[i] != '\0'; i++)
if ( i == 80 )
{
fprintf ( stderr, "\n The input exceeds 80 characters. " ) ;
exit ( 2 ) ;

} // end if, for

} // end while

avg_trip_length = ( ( float ) total ) / num_of_trips ;
printf ( "\n Total: %d \n No. of trips: %d \n Average: %f", total, num_of_trips, avg_trip_length ) ;

return 0 ;

} // end of main ()

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Getting stdout to work wz stdin just made

Asked by Thibo in C Programming Language

Tags: error

About this solution