X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=lib%2Fq.c;h=67597df414ab06f727eb94d6a6fe422a74279650;hb=b6ebc39257e2814f08a17d8c179c3991c16053ba;hp=fc9f8684256548e89cde59b87623f6ee75a781db;hpb=10b60d36fcf6cc9532bf397866c5bdc3393246eb;p=swftools.git

diff --git a/lib/q.c b/lib/q.c
index fc9f868..67597df 100644
--- a/lib/q.c
+++ b/lib/q.c
@@ -113,6 +113,36 @@ int mem_get(mem_t*m, void*data, int length)
     return length;
 }
 
+// ------------------------------- median -------------------------------------
+
+float medianf(float*a, int n)
+{
+    int i,j,l,m;
+    float x;
+    int k=n&1?n/2:n/2-1;
+    l=0; 
+    m=n-1;
+    while(l<m) {
+        x=a[k];
+        i=l;j=m;
+        do {
+            while(a[i]<x) i++;
+            while(x<a[j]) j--;
+            if(i<=j) {
+		//swap
+		float t = a[i];
+		a[i] = a[j];
+		a[j] = t;
+                i++;
+		j--;
+            }
+        } while(i<=j);
+        if(j<k) l=i;
+        if(k<i) m=j;
+    }
+    return a[k];
+}
+
 // ------------------------------- ringbuffer_t -------------------------------
 
 typedef struct _ringbuffer_internal_t
@@ -344,7 +374,7 @@ static char _trie_put(trielayer_t**t, unsigned const char*id, void*data)
 {
     if(!*t) {
         (*t) = rfx_calloc(sizeof(trielayer_t));
-        (*t)->rest = (unsigned char*)strdup(id);
+        (*t)->rest = (unsigned char*)strdup((char*)id);
         (*t)->data = data;
         return 0;
     } 
@@ -359,7 +389,7 @@ static char _trie_put(trielayer_t**t, unsigned const char*id, void*data)
         char overwrite = 0;
         if((*t)->rest) 
             overwrite = 1;
-        (*t)->rest = strdup("");
+        (*t)->rest = (unsigned char*)strdup("");
         (*t)->data = data;
         return overwrite;
     }
@@ -367,7 +397,7 @@ static char _trie_put(trielayer_t**t, unsigned const char*id, void*data)
 static char _trie_remove(trielayer_t*t, unsigned const char*id)
 {
     while(t) {
-        if(t->rest && !strcmp(t->rest, id)) {
+        if(t->rest && !strcmp((char*)t->rest, (char*)id)) {
             free(t->rest);
             t->rest = 0;
             return 1;
@@ -413,7 +443,7 @@ int trie_contains(trie_t*trie, unsigned const char*id)
 {
     trielayer_t*t = trie->start;
     while(t) {
-        if(t->rest && !strcmp(t->rest, id))
+        if(t->rest && !strcmp((char*)t->rest, (char*)id))
             return 1;
         if(!*id) 
             return 0;
@@ -425,7 +455,7 @@ void* trie_lookup(trie_t*trie, unsigned const char*id)
 {
     trielayer_t*t = trie->start;
     while(t) {
-        if(t->rest && !strcmp(t->rest, id))
+        if(t->rest && !strcmp((char*)t->rest, (char*)id))
             return t->data;
         if(!*id) 
             return 0;
@@ -1343,14 +1373,14 @@ array_t* array_new2(type_t*type) {
 }
 void*array_getkey(array_t*array, int nr) {
     if(nr > array->num || nr<0) {
-	printf("error: reference to element %d in array[%d]\n", nr, array->num);
+	fprintf(stderr, "error: reference to element %d in array[%d]\n", nr, array->num);
 	return 0;
     }
     return array->d[nr].name;
 }
 void*array_getvalue(array_t*array, int nr) {
     if(nr > array->num || nr<0) {
-	printf("error: reference to element %d in array[%d]\n", nr, array->num);
+	fprintf(stderr, "error: reference to element %d in array[%d]\n", nr, array->num);
 	return 0;
     }
     return array->d[nr].data;