/* Verify correctness of the peak routine
 * Copyright 2004 Phil Karn, KA9Q
 */
#include <stdio.h>
#include <stdlib.h>
#include <time.h>

/* These values should trigger leading/trailing array fragment handling */
#define NSAMP 200002
#define OFFSET 1

int peakval(signed short *, int);
int peakval_port(signed short *, int);

int main()
{
  int i, s;
  int result, rresult;
  signed short samples[NSAMP];

  srandom(time(NULL));

  for (i = 0; i < NSAMP; i++) {
    do {
      s = random() & 0x0fff;
    }
    while (s == 0x8000);
    samples[i] = s;
  }
  samples[5] = 25000;

  rresult = peakval_port(&samples[OFFSET], NSAMP - OFFSET);
  result = peakval(&samples[OFFSET], NSAMP - OFFSET);
  if (result == rresult) {
    printf("OK\n");
  }
  else {
    printf("peak mismatch: %d != %d\n", result, rresult);
  }
  exit(0);
}