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# array loop w/ testing

Posted on 2002-05-20
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how do I loop and test to get the schedule?
I need to test for weekday & print user time or --- ---
array filled with:
her  0    730    530
her  1    730    530
her  5    730    530
him  2    800    600
him  3    800    600
him  6    730    530

sched[user][weekday][start][end]

output like:
her 730 530 730 530 ----- ----- ----- ----- ----- ----- 800 600 ----- -----
him ----- ----- ----- ----- 800 600 800 600 ----- ----- ----- ----- 730 530
my first guess  -
while (user)
if(weekday==1){mon=sched[][][start++];mon_end=sched[end];
else cout<< ' --- --- ';}
if(weekday==2){tue=sched[][][start++];tue_end=sched[end];
else cout<< ' --- --- '';}
cout << mon << mon_end << tue << tue_end;
0
Question by:jarmstro12

LVL 49

Accepted Solution

DanRollins earned 500 total points
ID: 7022543
THe trick is to cycle throught eh schedule and collect the start/end for each day.  This does that and will make your boss happy.

Note:  You did not provide enough details for me to work out how you are currently storing the data.  So I created a structure (SchedDataRec) that appears to match your array layout.

#include <stdio.h>
#include <string.h>

typedef struct {
char szUser[10];
int  nWeekday;
int  nStart;
int  nEnd;
} SchedDataRec;

//------------- prefill test data.  Your array will be variable length,
//------------- This is just to satisfy the criteria of the question.

SchedDataRec arSched[6] =
{
{ "her", 0, 730, 530 },
{ "her", 1, 730, 530 },
{ "her", 5, 730, 530 },
{ "him", 2, 800, 600 },
{ "him", 3, 800, 600 },
{ "him", 6, 730, 530 }
};
int gnRecCnt= 6;  // hard-coded for test purposes

void OutputForUser( char* szUser );

void main()
{
printf("        ---Sun--- ---Mon--- ---Tue--- ---Wed--- ---Thu--- ---Fri--- ---Sat--- \n");
printf("Name    From   To From   To From   To From   To From   To From   To From   To \n");
printf("------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- \n");

OutputForUser( "him" );
OutputForUser( "her" );
}

void OutputForUser( char* szUser )
{
int nFrom[7];
int nTo  [7];
int j;

for (j=0; j<7; j++ ) {
nFrom[j]= nTo[j]= -1;
}
for ( j=0; j< gnRecCnt; j++ ) {
if ( strcmp( szUser, arSched[j].szUser ) == 0 ) {
nFrom[ arSched[j].nWeekday ] = arSched[j].nStart;
nTo  [ arSched[j].nWeekday ] = arSched[j].nEnd;
}
}
printf("%-7s ", szUser );

for ( j=0; j< 7; j++ ) {
if ( nFrom[j] == -1 ) printf( "---- " );
else                  printf( "%04d ", nFrom[j] );

if ( nTo[j]   == -1 ) printf( "---- " );
else                  printf( "%04d ", nTo[j] );
}
printf("\n" );

}

-- Dan
0

Author Comment

ID: 7022721
it works and its what I asked for
0

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