#ifndef UTILS_H
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#define UTILS_H
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#include "darknet.h"
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#include "list.h"
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#include <stdio.h>
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#include <time.h>
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#ifndef M_PI
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#define M_PI 3.14159265358979323846 // pi
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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LIB_API void free_ptrs(void **ptrs, int n);
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LIB_API void top_k(float *a, int n, int k, int *index);
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void *xmalloc(size_t size);
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void *xcalloc(size_t nmemb, size_t size);
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void *xrealloc(void *ptr, size_t size);
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double what_time_is_it_now();
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int *read_map(char *filename);
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void shuffle(void *arr, size_t n, size_t size);
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void sorta_shuffle(void *arr, size_t n, size_t size, size_t sections);
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char *basecfg(char *cfgfile);
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int alphanum_to_int(char c);
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char int_to_alphanum(int i);
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int read_int(int fd);
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void write_int(int fd, int n);
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void read_all(int fd, char *buffer, size_t bytes);
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void write_all(int fd, char *buffer, size_t bytes);
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int read_all_fail(int fd, char *buffer, size_t bytes);
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int write_all_fail(int fd, char *buffer, size_t bytes);
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LIB_API void find_replace(const char* str, char* orig, char* rep, char* output);
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void replace_image_to_label(const char* input_path, char* output_path);
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void error(const char *s);
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void malloc_error();
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void calloc_error();
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void realloc_error();
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void file_error(char *s);
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void strip(char *s);
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void strip_args(char *s);
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void strip_char(char *s, char bad);
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list *split_str(char *s, char delim);
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char *fgetl(FILE *fp);
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list *parse_csv_line(char *line);
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char *copy_string(char *s);
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int count_fields(char *line);
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float *parse_fields(char *line, int n);
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void normalize_array(float *a, int n);
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void scale_array(float *a, int n, float s);
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void translate_array(float *a, int n, float s);
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int max_index(float *a, int n);
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int top_max_index(float *a, int n, int k);
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float constrain(float min, float max, float a);
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int constrain_int(int a, int min, int max);
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float mse_array(float *a, int n);
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float rand_normal();
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size_t rand_size_t();
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float rand_uniform(float min, float max);
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float rand_scale(float s);
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int rand_int(int min, int max);
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float sum_array(float *a, int n);
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float mean_array(float *a, int n);
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void mean_arrays(float **a, int n, int els, float *avg);
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float variance_array(float *a, int n);
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float mag_array(float *a, int n);
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float mag_array_skip(float *a, int n, int * indices_to_skip);
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float dist_array(float *a, float *b, int n, int sub);
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float **one_hot_encode(float *a, int n, int k);
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float sec(clock_t clocks);
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int find_int_arg(int argc, char **argv, char *arg, int def);
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float find_float_arg(int argc, char **argv, char *arg, float def);
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int find_arg(int argc, char* argv[], char *arg);
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char *find_char_arg(int argc, char **argv, char *arg, char *def);
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int sample_array(float *a, int n);
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int sample_array_custom(float *a, int n);
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void print_statistics(float *a, int n);
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unsigned int random_gen_fast(void);
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float random_float_fast();
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int rand_int_fast(int min, int max);
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unsigned int random_gen();
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float random_float();
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float rand_uniform_strong(float min, float max);
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float rand_precalc_random(float min, float max, float random_part);
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double double_rand(void);
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unsigned int uint_rand(unsigned int less_than);
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int check_array_is_nan(float *arr, int size);
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int check_array_is_inf(float *arr, int size);
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int int_index(int *a, int val, int n);
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int *random_index_order(int min, int max);
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int max_int_index(int *a, int n);
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boxabs box_to_boxabs(const box* b, const int img_w, const int img_h, const int bounds_check);
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int make_directory(char *path, int mode);
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#define max_val_cmp(a,b) (((a) > (b)) ? (a) : (b))
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#define min_val_cmp(a,b) (((a) < (b)) ? (a) : (b))
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#ifdef __cplusplus
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}
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#endif
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#endif
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