util.h

#ifndef UTIL_H_
#define UTIL_H_

#include <cstdlib> // exit

#define RAND_FLOAT()  (static_cast <float> (rand()) / static_cast <float> (RAND_MAX))

/*#define STATCODE(a) a*/
#define STATCODE(a)

void __terminal_error(const char *file, const unsigned line, const char *func, const char *msg) {

    printf("[%s:%u:%s] %s\n",file,line,func,msg);
    fflush(stdout);
    /*std::raise(SIGINT);*/
    exit(1);
}


#define terminal_error(errstr) __terminal_error(__FILE__, __LINE__, __func__,errstr)

inline int rand_int (int max_int) { return std::rand()%(max_int);}
inline int rand_int_range (int min_int,int max_int) {
    return min_int+(std::rand()%(max_int-min_int+1));}

static void* safe_malloc(size_t n, unsigned int line)
{
    void* p = malloc(n);
    if (!p)
    {
        fprintf(stderr, "[%s:%u]Out of memory(%u bytes)\n",
                __FILE__, line, (unsigned int)n);
        exit(EXIT_FAILURE);
    }
    return p;
}
#define safemalloc(n) safe_malloc(n, __LINE__)

inline int* rand_int_vector(int max_int,int n) {
    int* int_v = (int*) safemalloc(sizeof(int)*n);
    for(int i=0;i<n;i++) {
        int_v[i] = rand_int(max_int+1);
    }
    return int_v;
}




int count_lines(FILE *fp) {
    int num_lines = 0;
    char ch;
    fseek(fp, 0L, SEEK_SET);
    while(!feof(fp))
    {
        ch = fgetc(fp);
        if(ch == '\n')
        {
            num_lines++;
        }
    }
    fseek(fp, 0L, SEEK_SET);
    return num_lines;
}


#endif