Arrays in C

array.c

#include <stdio.h>
float minm(float a1[],int size);
int main()
{

    float a1[]={2.5,5.7,1.2,2.1,4.3};
    float *p;
    p=a1;
    
    while(p<a1+sizeof(a1)/sizeof(float))
    {
	printf("%p -> %f \n",p,*p);
	p++;
    }
    
    float min=a1[1];
    int i=0;
    
    min = minm(a1,sizeof(a1)/sizeof(float));
    printf("the min value in array : %f\n",min);
}
float minm (float a1[], int size)
{
    float tmp=a1[0];
    int i;
    while (i<size)
    {
	if(a1[i]<tmp)
	{
	    tmp = a1[i];
	}
	i++;
    }
    return tmp;
}