c - for-loop left after one iteration -

i'm encountering problem , don't why. used exact same loop before test (without inside code) , worked. i'm not programming newbie (though c newbie), feel one. replaced length hard coded number, doesn't change anything. jobstatus() uses for-loop works fine. appreciated!

ps: don't mind if / else-if part. desperation move because cant find problem, know don't need last else if etc.

thanks in advance

#include <stdio.h> #include <stdlib.h>  short jobs[] = {6,13,7,3,4,9,10,11}; short table[13][10]; short q,i,j,k,diff; short sum;  void jobstatus(short a){ printf("jobstatus:"); for(i=0;i<a;i++){     printf(" %i",jobs[i]); } printf("\n"); }  int main(){ // berechne anzahl der jobs short length = sizeof(jobs)/2; printf("jobs: %i\n", length);  /* für alle quanten q for(q=0;q<13;q++){     // schreibe das jeweilige quantum in die erste spalte jeder zeile     table[q][0]=(q+1);        gehe jeden job durch*/          for(i=0;i<length;i++){             printf("current job: %i\n", i);             /* falls der aktuelle job bereits erledigt ist   überspringe ihn             if(jobs[i]==0){                 i++;             }*/             diff=jobs[i]-(q+1);             if(diff>0){                 jobs[i]=diff;                 jobstatus(length);                 table[q][i+1]=diff;             } else if(diff==0){                 jobs[i]=0;             } else if(diff<0){                 diff=diff*(-1);                 jobs[i]=0;                 table[q][i+1]+=diff;             }            }     printf("#  q p1 p2 p3 p4 p5 p6 p7 p8 avg.time\n"); printf("#------------------------------------\n"); for(q=0;q<13;q++){     for(i=0;i<8;i++){         printf(" %i", table[q][i]);          }     printf("\n"); } return 0; 

}

this output:

jobs: 8 // indicates length should set 8

jobstatus: 5 13 7 3 4 9 10 11

q p1 p2 p3 p4 p5 p6 p7 p8 avg.time

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

you have global variable i used in both loops (inside jobstatus , in main). once call jobstatus(length); within main loop content of variable changed , afterwards loop terminates (because i set length).