From 2f62fe33c913cd9484fe7f2486889d12292c66e0 Mon Sep 17 00:00:00 2001
From: Joseph Redmon <pjreddie@gmail.com>
Date: Sat, 07 Feb 2015 02:53:53 +0000
Subject: [PATCH] saving weight files as binaries, hell yeah
---
src/utils.c | 32 ++++++++++++++++++++++++++++++++
1 files changed, 32 insertions(+), 0 deletions(-)
diff --git a/src/utils.c b/src/utils.c
index 2635494..bf02ff3 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -2,6 +2,7 @@
#include <stdlib.h>
#include <string.h>
#include <math.h>
+#include <unistd.h>
#include <float.h>
#include <limits.h>
@@ -148,6 +149,27 @@
return line;
}
+void read_all(int fd, char *buffer, size_t bytes)
+{
+ size_t n = 0;
+ while(n < bytes){
+ int next = read(fd, buffer + n, bytes-n);
+ if(next <= 0) error("read failed");
+ n += next;
+ }
+}
+
+void write_all(int fd, char *buffer, size_t bytes)
+{
+ size_t n = 0;
+ while(n < bytes){
+ size_t next = write(fd, buffer + n, bytes-n);
+ if(next <= 0) error("write failed");
+ n += next;
+ }
+}
+
+
char *copy_string(char *s)
{
char *copy = malloc(strlen(s)+1);
@@ -262,6 +284,16 @@
}
}
+float mag_array(float *a, int n)
+{
+ int i;
+ float sum = 0;
+ for(i = 0; i < n; ++i){
+ sum += a[i]*a[i];
+ }
+ return sqrt(sum);
+}
+
void scale_array(float *a, int n, float s)
{
int i;
--
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