/************************************************************************/
/* 公用的数据类型和函数                                                                     */
/************************************************************************/
#ifndef COMMON_H
#define COMMON_H

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>

#if defined(WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__)
#define CONFIG_WIN32
#endif

#ifdef CONFIG_WIN32
#define inline __inline
#endif

typedef signed char int8_t;
typedef signed short int16_t;
typedef signed int int32_t;
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned int uint32_t;

#ifdef CONFIG_WIN32
typedef signed __int64 int64_t;
typedef unsigned __int64 uint64_t;
#else
typedef signed long long int64_t;
typedef unsigned long long uint64_t;
#endif

#ifdef CONFIG_WIN32
#define int64_t_C(c)     (c ## i64)
#define uint64_t_C(c)    (c ## i64)
#else
#define int64_t_C(c)     (c ## LL)
#define uint64_t_C(c)    (c ## ULL)
#endif

#ifndef INT64_MAX
#define INT64_MAX int64_t_C(9223372036854775807)
#endif

/* 大小写无关字符串的比较 */
static int strcasecmp(char *s1, const char *s2)
{
    while (toupper((unsigned char) *s1) == toupper((unsigned char) *s2++))
        if (*s1++ == '\0')
            return 0;

    return (toupper((unsigned char) *s1) - toupper((unsigned char) *--s2));
}

/* 限幅函数 */
static inline int clip(int a, int amin, int amax)
{
    if (a < amin)
        return amin;
    else if (a > amax)
        return amax;
    else
        return a;
}

#endif