From d8adaf8ea6a31a380f6bf1fe65e88b661d3bb51e Mon Sep 17 00:00:00 2001
From: Joseph Redmon <pjreddie@gmail.com>
Date: Fri, 21 Oct 2016 20:16:43 +0000
Subject: [PATCH] tree stuff

---
 src/utils.h |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/src/utils.h b/src/utils.h
index 7e49818..4667634 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -5,6 +5,7 @@
 #include "list.h"
 
 #define SECRET_NUM -1234
+#define TWO_PI 6.2831853071795864769252866
 
 void shuffle(void *arr, size_t n, size_t size);
 void sorta_shuffle(void *arr, size_t n, size_t size, size_t sections);
@@ -18,7 +19,7 @@
 void write_all(int fd, char *buffer, size_t bytes);
 int read_all_fail(int fd, char *buffer, size_t bytes);
 int write_all_fail(int fd, char *buffer, size_t bytes);
-char *find_replace(char *str, char *orig, char *rep);
+void find_replace(char *str, char *orig, char *rep, char *output);
 void error(const char *s);
 void malloc_error();
 void file_error(char *s);
@@ -36,16 +37,19 @@
 void translate_array(float *a, int n, float s);
 int max_index(float *a, int n);
 float constrain(float min, float max, float a);
+int constrain_int(int a, int min, int max);
 float mse_array(float *a, int n);
 float rand_normal();
 size_t rand_size_t();
 float rand_uniform(float min, float max);
+float rand_scale(float s);
 int rand_int(int min, int max);
 float sum_array(float *a, int n);
 float mean_array(float *a, int n);
 void mean_arrays(float **a, int n, int els, float *avg);
 float variance_array(float *a, int n);
 float mag_array(float *a, int n);
+float dist_array(float *a, float *b, int n, int sub);
 float **one_hot_encode(float *a, int n, int k);
 float sec(clock_t clocks);
 int find_int_arg(int argc, char **argv, char *arg, int def);
@@ -53,6 +57,7 @@
 int find_arg(int argc, char* argv[], char *arg);
 char *find_char_arg(int argc, char **argv, char *arg, char *def);
 int sample_array(float *a, int n);
+void print_statistics(float *a, int n);
 
 #endif
 

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