how to get specific element content in an array an store to another array ?

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int thresholdcount,PZLoctn_counter;
float *PZdemo;
for(thresholdcount=0;thresholdcount<sample_length;thresholdcount++)
{
 if(thxcross_pos[thresholdcount]==1)
	{
	//PZLoctn[thresholdcount]=thxcross_pos[thresholdcount];
	PZLoctn[thresholdcount]=thresholdcount;
	printf("pzloctn:%f\n",PZLoctn[thresholdcount]);
	PZdemo=PZLoctn[thresholdcount];
	PZLoctn_counter=PZLoctn_counter+1;	
	}

}
for(thresholdcount=0;thresholdcount<PZLoctn_counter;thresholdcount++)
{
printf("%f\n",PZdemo[thresholdcount]);
}

in this i have an array(thxcross_pos[sample_length]) which contents elements and here i have also create one more array(PZLoctn[PZLoctn_counter]) whose size may varies according to the condition, here i am planning to store the index of thxcross_pos[]==1 into PZLoctn[] den to PZdemo

Posted 14-Jan-15 1:42am

mybm1

Updated 14-Jan-15 2:12am

_Asif_

v2

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_Asif_ · Answer 1 · 2015-01-14T02:18:00

The problem seems that you have not allocated memory to PZDemo. Check below code for your starting point

C

int thresholdcount,PZLoctn_counter;
float *PZdemo = new float[sample_length];
for(thresholdcount=0;thresholdcount<sample_length;thresholdcount++)
{
 if(thxcross_pos[thresholdcount]==1)
    {
    //PZLoctn[thresholdcount]=thxcross_pos[thresholdcount];
    PZLoctn[thresholdcount]=thresholdcount;
    printf("pzloctn:%f\n",PZLoctn[thresholdcount]);
    PZdemo=PZLoctn[thresholdcount];
    PZLoctn_counter=PZLoctn_counter+1;
    }

}
for(thresholdcount=0;thresholdcount<PZLoctn_counter;thresholdcount++)
{
printf("%f\n",PZdemo[thresholdcount]);
}