some more printfs to server + deleted debug printf in gui

[physik/nlsop.git] / random.c

diff --git a/random.c b/random.c
index 6690531..468a3a5 100644 (file)
--- a/random.c
+++ b/random.c
@@ -55,6 +55,9 @@ u32 get_rand(u32 max)
 {
  if(c_ptr>=b_ptr+BUFSIZE)
  {
+#ifdef MORE_PRINTF
+  printf("getting another %d bytes of random data ...\n",BUFSIZE);
+#endif
   if(read(rand_fd,b_ptr,BUFSIZE*sizeof(u32))<BUFSIZE*sizeof(u32))
   {
    /* -> assume random file, end reached */
@@ -63,6 +66,9 @@ u32 get_rand(u32 max)
    read(rand_fd,b_ptr,BUFSIZE*sizeof(u32));
   }
   c_ptr=b_ptr;
+#ifdef MORE_PRINTF
+  printf("got it!\n");
+#endif
  }
 
  return((u32)(*(c_ptr++)*(max*1.0/((long long unsigned int)URAND_MAX+1))));
@@ -73,3 +79,18 @@ u32 get_rand_lgp(u32 max,double a,double b)
  return((u32)(1.0*max*(-1.0*b+sqrt(b*b+2*a*((b+a/2)*get_rand(URAND_MAX)/((long long unsigned int)URAND_MAX+1))))/a));
 }
 
+u32 get_rand_reject(u32 max_x,u32 max_y,u32 *graph)
+{
+ u32 x,y;
+ unsigned char ok;
+
+ ok=0;
+ while(!ok)
+ {
+  x=get_rand(max_x);
+  y=get_rand(max_y);
+  if(y<=graph[x]) ok=1;
+ }
+
+ return x;
+}