Code:
int main()
{
FILE *file;
file = fopen("C:/Users/dell/Desktop/File/init.txt","r");
int xcount;
char c[4],brown_spec[2],brown_conc[1];
float *x=NULL;
float ***brown;
int line_read=0,xtime=0,xconc_range=0,xspecies=0,i=0,j=0;
if (file!=NULL)
{
		
		while(line_read<3 && fgets(c,10,file)!=NULL )
		{
            line_read++;
			if (line_read==1)
			{
				xtime=atoi(c);
			}
			if (line_read==2)
			{
				xconc_range=atoi(c);
			}
			if (line_read==3)
			{
				xspecies=atoi(c);
			}
		}

		brown=(float***)malloc(xspecies*sizeof *brown);
		for( i=0; i<xspecies ; i++ )
		{
			brown[ i ] =(float**)malloc(xtime* sizeof **brown);/* Allocate 'xtime' number of pointers to int */
			 /*Validate malloc's success/failure using the return value*/
			for( j=0; j<xtime; j++)
			{
				brown[ i ][ j ]= (float*)malloc(xconc_range* sizeof ***brown);/* Allocate 'xconc_range' number of ints */
				/*Validate malloc's success/failure using the return value*/
			}
		}

		while(fgets(c,10,file)!=NULL && line_read>=3)
		{
		  strncpy(brown_spec,&c[2],1);
		 if(brown_spec[0]=='=')
		 {
			 strncpy(brown_spec,&c[1],1);
			 strncpy(brown_conc,&c[3],1);
		 }
		 else
		 {
            strncpy(brown_spec,&c[1],2);
            strncpy(brown_conc,&c[4],1);
		}

		 brown[atoi(brown_spec)][0][atoi(brown_conc)]=1;

		 line_read++;

		}
}  



exit(0);
return 0;

}
Hi The problem with the above code is that if i dont put the exit function before return it gives an error , but when i put the exit function it works fine... can u tell me why such is the case?

Tnks