basics.h

#define print(str) printf("%s", (str))
#define printl(str) printf("%s\n", (str))

#ifndef EOL
# define EOL '\n'
#endif

#ifndef NULLCHAR
# define NULLCHAR '\0'
#endif

#ifndef var
# define var extern
#endif

typedef unsigned char uchar;
typedef unsigned short ushort;
typedef unsigned int uint;
typedef unsigned long ulong;
typedef signed char int8;
typedef unsigned char uint8;
typedef signed short int int16;
typedef unsigned short int uint16;
typedef signed int int32;
typedef unsigned int uint32;
typedef signed long int int64;
typedef unsigned long int uint64;

/*
* Boolean constants
*/
#ifndef TRUE
# define FALSE 0  // note: this is an int, not a long!
# define TRUE 1
#endif

/*
* Some usefull constants for strings :D
*/
#ifndef IN
# define OUT 0
# define IN 1
#endif

/*
* Min and Max :D
*/
#ifndef MAX
# define MAX(a, b) ((a) < (b) ? (b) : (a))
#endif
#ifndef MIN
# define MIN(a, b) ((a) < (b) ? (a) : (b))
#endif

/*
* Two string Concatination
*/
#ifndef CONCAT
# define CONCAT(a, b) a##b
#endif

/* 
* n string concatination
*/
#define strcpyall(buf, offset, ...)                                                 \
    do {                                                                            \
        char *bp = (char *)(buf + offset); /*so we can add to the end of a string*/ \
        const char *s,                                                              \
            *a[] = {__VA_ARGS__, NULL},                                             \
            **ss = a;                                                               \
        while ((s = *ss++))                                                         \
            while ((*s) && ((++offset) < (int)sizeof(buf)))                         \
                *bp++ = *s++;                                                       \
        if (offset != sizeof(buf)) *bp = 0;                                         \
    } while (0)

/* 
* foreach in c haha
*/
#define foreach(item, array)                         \
    for (int keep = 1,                               \
             count = 0,                              \
             size = sizeof(array) / sizeof *(array); \
         keep && count != size;                      \
         keep = !keep, count++)                      \
        for (item = (array) + count; keep; keep = !keep)

/*
* LENGTH of an array
*/
#define ARRAY_LENGTH(array) (sizeof(array) / sizeof(array[0]))

/*
* is even and odd for number
*/
#define IS_EVEN(num) (!IS_ODD((num)))
#define IS_ODD(num) ((num)&1)