#ifndef YTDLSB_UTILS_H
#define YTDLSB_UTILS_H

#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <inttypes.h>

inline static int is_little_endian(){
    int i = 1;
    return *(char *)(void *)&i;
}

#define eprintf(fmt, ...) fprintf(stderr, "\n" fmt, ##__VA_ARGS__)
#define CK_INNER(errproc, expr, cond, msg, ...) ({ \
    typeof(expr) cktmp = (expr); \
    if(!(cktmp cond)){ \
        eprintf("E%"PRIdPTR" at %s:%d(%s): assert(%s)" msg "\n", \
            (intptr_t)cktmp, __FILE__, __LINE__, __func__, \
            #expr " " #cond, ##__VA_ARGS__); \
        errproc; \
    } \
    cktmp; \
})

#define CK(label, expr, cond) CK_INNER(goto label, expr, cond, "")
#define CKT(label, expr) CK(label, expr, )
#define CKP(label, expr) CK(label, expr, >= 0)
#define CKZ(label, expr) CK(label, expr, == 0)
#define CKM(label, expr) CKZ(label, expr)
#define CKR(label, expr) CK(label, expr, != NULL)
#define CKA(expr, cond) CK_INNER(abort(), expr, cond, "")
#define CKAR(expr) CKA(expr, != NULL)
#define CKAP(expr) CKA(expr, >= 0)
#define CK_WARN(expr, cond) CK_INNER(, expr, cond, "")
#define CK_MSG(label, expr, cond, msg, ...) \
    CK_INNER(goto label, expr, cond, ": " msg, ##__VA_ARGS__)
#define TRY_NUMCAST(label, type, expr) ({ \
    typeof(expr) cktmp = (expr); \
    if((type)cktmp != cktmp) goto label; \
    if(cktmp < 0 && 0 < (type)-1) goto label; \
    (type)cktmp; \
})

#endif  //YTDLSB_UTILS_H