From f007f7b90ec1a3d83fd638d81b9b209448f659a4 Mon Sep 17 00:00:00 2001
From: AlexeyAB <alexeyab84@gmail.com>
Date: Wed, 15 Aug 2018 20:47:56 +0000
Subject: [PATCH] Fixes for MSVS2017

---
 src/utils.c |  479 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++---
 1 files changed, 455 insertions(+), 24 deletions(-)

diff --git a/src/utils.c b/src/utils.c
index 28be2ec..09c50b2 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -2,25 +2,233 @@
 #include <stdlib.h>
 #include <string.h>
 #include <math.h>
+#include <assert.h>
 #include <float.h>
 #include <limits.h>
-
+#ifdef WIN32
+#include "unistd.h"
+#include "gettimeofday.h"
+#else
+#include <unistd.h>
+#include <sys/time.h>
+#endif
 #include "utils.h"
 
-char *find_replace(char *str, char *orig, char *rep)
+#pragma warning(disable: 4996)
+
+double what_time_is_it_now()
 {
-    static char buffer[4096];
+    struct timeval time;
+    if (gettimeofday(&time, NULL)) {
+        return 0;
+    }
+    return (double)time.tv_sec + (double)time.tv_usec * .000001;
+}
+
+int *read_map(char *filename)
+{
+    int n = 0;
+    int *map = 0;
+    char *str;
+    FILE *file = fopen(filename, "r");
+    if(!file) file_error(filename);
+    while((str=fgetl(file))){
+        ++n;
+        map = realloc(map, n*sizeof(int));
+        map[n-1] = atoi(str);
+    }
+    return map;
+}
+
+void sorta_shuffle(void *arr, size_t n, size_t size, size_t sections)
+{
+    size_t i;
+    for(i = 0; i < sections; ++i){
+        size_t start = n*i/sections;
+        size_t end = n*(i+1)/sections;
+        size_t num = end-start;
+        shuffle((char*)arr+(start*size), num, size);
+    }
+}
+
+void shuffle(void *arr, size_t n, size_t size)
+{
+    size_t i;
+    void *swp = calloc(1, size);
+    for(i = 0; i < n-1; ++i){
+        size_t j = i + rand()/(RAND_MAX / (n-i)+1);
+        memcpy(swp,            (char*)arr+(j*size), size);
+        memcpy((char*)arr+(j*size), (char*)arr+(i*size), size);
+        memcpy((char*)arr+(i*size), swp,          size);
+    }
+}
+
+void del_arg(int argc, char **argv, int index)
+{
+    int i;
+    for(i = index; i < argc-1; ++i) argv[i] = argv[i+1];
+    argv[i] = 0;
+}
+
+int find_arg(int argc, char* argv[], char *arg)
+{
+    int i;
+    for(i = 0; i < argc; ++i) {
+        if(!argv[i]) continue;
+        if(0==strcmp(argv[i], arg)) {
+            del_arg(argc, argv, i);
+            return 1;
+        }
+    }
+    return 0;
+}
+
+int find_int_arg(int argc, char **argv, char *arg, int def)
+{
+    int i;
+    for(i = 0; i < argc-1; ++i){
+        if(!argv[i]) continue;
+        if(0==strcmp(argv[i], arg)){
+            def = atoi(argv[i+1]);
+            del_arg(argc, argv, i);
+            del_arg(argc, argv, i);
+            break;
+        }
+    }
+    return def;
+}
+
+float find_float_arg(int argc, char **argv, char *arg, float def)
+{
+    int i;
+    for(i = 0; i < argc-1; ++i){
+        if(!argv[i]) continue;
+        if(0==strcmp(argv[i], arg)){
+            def = atof(argv[i+1]);
+            del_arg(argc, argv, i);
+            del_arg(argc, argv, i);
+            break;
+        }
+    }
+    return def;
+}
+
+char *find_char_arg(int argc, char **argv, char *arg, char *def)
+{
+    int i;
+    for(i = 0; i < argc-1; ++i){
+        if(!argv[i]) continue;
+        if(0==strcmp(argv[i], arg)){
+            def = argv[i+1];
+            del_arg(argc, argv, i);
+            del_arg(argc, argv, i);
+            break;
+        }
+    }
+    return def;
+}
+
+
+char *basecfg(char *cfgfile)
+{
+    char *c = cfgfile;
+    char *next;
+    while((next = strchr(c, '/')))
+    {
+        c = next+1;
+    }
+    if(!next) while ((next = strchr(c, '\\'))) { c = next + 1; }
+    c = copy_string(c);
+    next = strchr(c, '.');
+    if (next) *next = 0;
+    return c;
+}
+
+int alphanum_to_int(char c)
+{
+    return (c < 58) ? c - 48 : c-87;
+}
+char int_to_alphanum(int i)
+{
+    if (i == 36) return '.';
+    return (i < 10) ? i + 48 : i + 87;
+}
+
+void pm(int M, int N, float *A)
+{
+    int i,j;
+    for(i =0 ; i < M; ++i){
+        printf("%d ", i+1);
+        for(j = 0; j < N; ++j){
+            printf("%2.4f, ", A[i*N+j]);
+        }
+        printf("\n");
+    }
+    printf("\n");
+}
+
+void find_replace(char *str, char *orig, char *rep, char *output)
+{
+    char *buffer = calloc(8192, sizeof(char));
     char *p;
 
-    if(!(p = strstr(str, orig)))  // Is 'orig' even in 'str'?
-        return str;
+    sprintf(buffer, "%s", str);
+    if(!(p = strstr(buffer, orig))){  // Is 'orig' even in 'str'?
+        sprintf(output, "%s", str);
+        free(buffer);
+        return;
+    }
 
-    strncpy(buffer, str, p-str); // Copy characters from 'str' start to 'orig' st$
-    buffer[p-str] = '\0';
+    *p = '\0';
 
-    sprintf(buffer+(p-str), "%s%s", rep, p+strlen(orig));
+    sprintf(output, "%s%s%s", buffer, rep, p+strlen(orig));
+    free(buffer);
+}
 
-    return buffer;
+void find_replace_extension(char *str, char *orig, char *rep, char *output)
+{
+    char *buffer = calloc(8192, sizeof(char));
+
+    sprintf(buffer, "%s", str);
+    char *p = strstr(buffer, orig);
+    int offset = (p - buffer);
+    int chars_from_end = strlen(buffer) - offset;
+    if (!p || chars_from_end != strlen(orig)) {  // Is 'orig' even in 'str' AND is 'orig' found at the end of 'str'?
+        sprintf(output, "%s", str);
+        free(buffer);
+        return;
+    }
+
+    *p = '\0';
+
+    sprintf(output, "%s%s%s", buffer, rep, p + strlen(orig));
+    free(buffer);
+}
+
+void replace_image_to_label(char *input_path, char *output_path) {
+    //find_replace(input_path, "/images/", "/labels/", output_path);    // COCO
+    find_replace(input_path, "/images/train2014/", "/labels/train2014/", output_path);    // COCO
+    find_replace(output_path, "/images/val2014/", "/labels/val2014/", output_path);        // COCO
+    find_replace(output_path, "/JPEGImages/", "/labels/", output_path);    // PascalVOC
+    find_replace(output_path, "\\images\\train2014\\", "\\labels\\train2014\\", output_path);    // COCO
+    find_replace(output_path, "\\images\\val2014\\", "\\labels\\val2014\\", output_path);        // COCO
+    find_replace(output_path, "\\JPEGImages\\", "\\labels\\", output_path);    // PascalVOC
+    //find_replace(output_path, "/VOC2007/JPEGImages/", "/VOC2007/labels/", output_path);        // PascalVOC
+    //find_replace(output_path, "/VOC2012/JPEGImages/", "/VOC2012/labels/", output_path);        // PascalVOC
+
+    //find_replace(output_path, "/raw/", "/labels/", output_path);
+
+    // replace only ext of files
+    find_replace_extension(output_path, ".jpg", ".txt", output_path);
+    find_replace_extension(output_path, ".JPG", ".txt", output_path); // error
+    find_replace_extension(output_path, ".jpeg", ".txt", output_path);
+    find_replace_extension(output_path, ".JPEG", ".txt", output_path);
+    find_replace_extension(output_path, ".png", ".txt", output_path);
+    find_replace_extension(output_path, ".PNG", ".txt", output_path);
+    find_replace_extension(output_path, ".bmp", ".txt", output_path);
+    find_replace_extension(output_path, ".BMP", ".txt", output_path);
+    find_replace_extension(output_path, ".ppm", ".txt", output_path);
+    find_replace_extension(output_path, ".PPM", ".txt", output_path);
 }
 
 float sec(clock_t clocks)
@@ -31,11 +239,11 @@
 void top_k(float *a, int n, int k, int *index)
 {
     int i,j;
-    for(j = 0; j < k; ++j) index[j] = 0;
+    for(j = 0; j < k; ++j) index[j] = -1;
     for(i = 0; i < n; ++i){
         int curr = i;
         for(j = 0; j < k; ++j){
-            if(a[curr] > a[index[j]]){
+            if((index[j] < 0) || a[curr] > a[index[j]]){
                 int swap = curr;
                 curr = index[j];
                 index[j] = swap;
@@ -44,23 +252,23 @@
     }
 }
 
-void error(char *s)
+void error(const char *s)
 {
     perror(s);
-    //fprintf(stderr, "Error: %s\n", s);
-    exit(0);
+    assert(0);
+    exit(EXIT_FAILURE);
 }
 
 void malloc_error()
 {
     fprintf(stderr, "Malloc error\n");
-    exit(-1);
+    exit(EXIT_FAILURE);
 }
 
 void file_error(char *s)
 {
     fprintf(stderr, "Couldn't open file: %s\n", s);
-    exit(0);
+    exit(EXIT_FAILURE);
 }
 
 list *split_str(char *s, char delim)
@@ -85,12 +293,26 @@
     size_t offset = 0;
     for(i = 0; i < len; ++i){
         char c = s[i];
-        if(c==' '||c=='\t'||c=='\n') ++offset;
+        if(c==' '||c=='\t'||c=='\n'||c =='\r'||c==0x0d||c==0x0a) ++offset;
         else s[i-offset] = c;
     }
     s[len-offset] = '\0';
 }
 
+
+void strip_args(char *s)
+{
+    size_t i;
+    size_t len = strlen(s);
+    size_t offset = 0;
+    for (i = 0; i < len; ++i) {
+        char c = s[i];
+        if (c == '\t' || c == '\n' || c == '\r' || c == 0x0d || c == 0x0a) ++offset;
+        else s[i - offset] = c;
+    }
+    s[len - offset] = '\0';
+}
+
 void strip_char(char *s, char bad)
 {
     size_t i;
@@ -104,6 +326,13 @@
     s[len-offset] = '\0';
 }
 
+void free_ptrs(void **ptrs, int n)
+{
+    int i;
+    for(i = 0; i < n; ++i) free(ptrs[i]);
+    free(ptrs);
+}
+
 char *fgetl(FILE *fp)
 {
     if(feof(fp)) return 0;
@@ -130,11 +359,72 @@
         fgets(&line[curr], readsize, fp);
         curr = strlen(line);
     }
-    if(line[curr-1] == '\n') line[curr-1] = '\0';
+    if(curr >= 2)
+        if(line[curr-2] == 0x0d) line[curr-2] = 0x00;
+
+    if(curr >= 1)
+        if(line[curr-1] == 0x0a) line[curr-1] = 0x00;
 
     return line;
 }
 
+int read_int(int fd)
+{
+    int n = 0;
+    int next = read(fd, &n, sizeof(int));
+    if(next <= 0) return -1;
+    return n;
+}
+
+void write_int(int fd, int n)
+{
+    int next = write(fd, &n, sizeof(int));
+    if(next <= 0) error("read failed");
+}
+
+int read_all_fail(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) return 1;
+        n += next;
+    }
+    return 0;
+}
+
+int write_all_fail(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) return 1;
+        n += next;
+    }
+    return 0;
+}
+
+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);
@@ -204,6 +494,28 @@
     return sum_array(a,n)/n;
 }
 
+void mean_arrays(float **a, int n, int els, float *avg)
+{
+    int i;
+    int j;
+    memset(avg, 0, els*sizeof(float));
+    for(j = 0; j < n; ++j){
+        for(i = 0; i < els; ++i){
+            avg[i] += a[j][i];
+        }
+    }
+    for(i = 0; i < els; ++i){
+        avg[i] /= n;
+    }
+}
+
+void print_statistics(float *a, int n)
+{
+    float m = mean_array(a, n);
+    float v = variance_array(a, n);
+    printf("MSE: %.6f, Mean: %.6f, Variance: %.6f\n", mse_array(a, n), m, v);
+}
+
 float variance_array(float *a, int n)
 {
     int i;
@@ -214,13 +526,36 @@
     return variance;
 }
 
-float constrain(float a, float max)
+int constrain_int(int a, int min, int max)
 {
-    if(a > abs(max)) return abs(max);
-    if(a < -abs(max)) return -abs(max);
+    if (a < min) return min;
+    if (a > max) return max;
     return a;
 }
 
+float constrain(float min, float max, float a)
+{
+    if (a < min) return min;
+    if (a > max) return max;
+    return a;
+}
+
+float dist_array(float *a, float *b, int n, int sub)
+{
+    int i;
+    float sum = 0;
+    for(i = 0; i < n; i += sub) sum += pow(a[i]-b[i], 2);
+    return sqrt(sum);
+}
+
+float mse_array(float *a, int n)
+{
+    int i;
+    float sum = 0;
+    for(i = 0; i < n; ++i) sum += a[i]*a[i];
+    return sqrt(sum/n);
+}
+
 void normalize_array(float *a, int n)
 {
     int i;
@@ -241,6 +576,16 @@
     }
 }
 
+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;
@@ -249,6 +594,19 @@
     }
 }
 
+int sample_array(float *a, int n)
+{
+    float sum = sum_array(a, n);
+    scale_array(a, n, 1./sum);
+    float r = rand_uniform(0, 1);
+    int i;
+    for(i = 0; i < n; ++i){
+        r = r - a[i];
+        if (r <= 0) return i;
+    }
+    return n-1;
+}
+
 int max_index(float *a, int n)
 {
     if(n <= 0) return -1;
@@ -263,8 +621,27 @@
     return max_i;
 }
 
+int int_index(int *a, int val, int n)
+{
+    int i;
+    for (i = 0; i < n; ++i) {
+        if (a[i] == val) return i;
+    }
+    return -1;
+}
+
+int rand_int(int min, int max)
+{
+    if (max < min){
+        int s = min;
+        min = max;
+        max = s;
+    }
+    int r = (rand()%(max - min + 1)) + min;
+    return r;
+}
+
 // From http://en.wikipedia.org/wiki/Box%E2%80%93Muller_transform
-#define TWO_PI 6.2831853071795864769252866
 float rand_normal()
 {
     static int haveSpare = 0;
@@ -297,9 +674,34 @@
    }
  */
 
-float rand_uniform()
+size_t rand_size_t()
 {
-    return (float)rand()/RAND_MAX;
+    return  ((size_t)(rand()&0xff) << 56) |
+            ((size_t)(rand()&0xff) << 48) |
+            ((size_t)(rand()&0xff) << 40) |
+            ((size_t)(rand()&0xff) << 32) |
+            ((size_t)(rand()&0xff) << 24) |
+            ((size_t)(rand()&0xff) << 16) |
+            ((size_t)(rand()&0xff) << 8) |
+            ((size_t)(rand()&0xff) << 0);
+}
+
+float rand_uniform(float min, float max)
+{
+    if(max < min){
+        float swap = min;
+        min = max;
+        max = swap;
+    }
+    return ((float)rand()/RAND_MAX * (max - min)) + min;
+    //return (random_float() * (max - min)) + min;
+}
+
+float rand_scale(float s)
+{
+    float scale = rand_uniform_strong(1, s);
+    if(random_gen()%2) return scale;
+    return 1./scale;
 }
 
 float **one_hot_encode(float *a, int n, int k)
@@ -314,3 +716,32 @@
     return t;
 }
 
+unsigned int random_gen()
+{
+    unsigned int rnd = 0;
+#ifdef WIN32
+    rand_s(&rnd);
+#else
+    rnd = rand();
+#endif
+    return rnd;
+}
+
+float random_float()
+{
+#ifdef WIN32
+    return ((float)random_gen() / (float)UINT_MAX);
+#else
+    return ((float)random_gen() / (float)RAND_MAX);
+#endif
+}
+
+float rand_uniform_strong(float min, float max)
+{
+    if (max < min) {
+        float swap = min;
+        min = max;
+        max = swap;
+    }
+    return (random_float() * (max - min)) + min;
+}
\ No newline at end of file

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