Switching your code to use pointers yields the same outcome. You can't simultaneously have both the printf and scanf in the nested for-loop. It's one or the other. The best bet is to file a bug report.
#include <stdlib.h>
#include <stdio.h>
#include <malloc/malloc.h>
#define N 3
#define M 3
int Peak(float *a);
int main(int argc, const char * argv[])
{
int i, j, k;
float *matrix = (float*)malloc((N * M) * sizeof(float));
printf("\nInitialising [%d][%d] matrix\n", N, M);
for(i=0;i<N;i++)
for(j=0;j<M;j++)
{
printf("\nInsert element (%d,%d)", i,j);
scanf("%f", (matrix+i)+j);
}
k = Peak(matrix);
free(matrix);
printf("\nNumber of peaks: %d\n", k);
return (0);
}
int Peak(float *a)
{
int i, j, varbool, peaks=0;
float x;
for(i=0;i<N;i++)
for(j=0;j<M;j++)
{
varbool=1;
x = *((a+i)+j)/2.0;
if(j-1>=0){
if(x<=*((a+i)+j-1))
varbool=0;
} else if(j+1<M) {
if(x<=*((a+i)+j+1))
varbool=0;
} else if(i-1>=0) {
if(x<=*((a+i-1)+j))
varbool=0;
} else if(i+1<N) {
if(x<=*((a+i+1)+j))
varbool=0;
}
if(varbool)
peaks++;
}
return peaks;
}
Sean.
