-
-
[原创]字符串_常用操作函数与数值之间相关函数_重写练习之CPP源码!!!
-
发表于: 2021-11-29 21:31 17175
-
早期学习C的时候写的练手代码,
但是那会写的都是中文变量名称,
现在要练习写英文的,拿他复习
顺便练手改英文名称
有些想去职业圈玩了,一个人玩太无聊了.
头文件:
实现源码如下:
typedef long long llong;
class demo_hys
{public: static size_t str_len(char* str);
static size_t str_len(wchar_t* str);
static char* str_reverse(char* str);
static wchar_t* str_reverse(wchar_t* str);
static int ctoi(char* c);
static int ctoi(wchar_t* c);
static wchar_t itoc(size_t num);
static intptr_t strtohex(char* str);
static intptr_t strtohex(wchar_t* str);
static intptr_t hextoint(char* str);
static intptr_t hextoint(wchar_t* str);
static llong hextolong(char* str);
static llong hextolong(wchar_t* str);
static char* inttohex(intptr_t num, char* phex);
static wchar_t* inttohex(intptr_t num, wchar_t* phex);
static char* longtohex(llong num, char* phex);
static wchar_t* longtohex(llong num, wchar_t* phex);
static size_t str_getnumlenth(char* str);
static size_t str_getnumlenth(wchar_t* str);
static size_t inttostr(intptr_t num, char* pstr);
static size_t inttostr(intptr_t num, wchar_t* pstr);
static size_t longtostr(llong num, char* pstr);
static size_t longtostr(llong num, wchar_t* pstr);
static intptr_t strtoint(char* str);
static intptr_t strtoint(wchar_t* str);
static llong strtolong(char* str);
static llong strtolong(wchar_t* str);
static double strtodouble(char* str);
static double strtodouble(wchar_t* str);
static char* str_delspace(char* str);
static wchar_t* str_delspace(wchar_t* str);
static char* str_toupper(char* 文本);
static wchar_t* str_toupper(wchar_t* 文本);
static char* str_tolower(char* 文本);
static wchar_t* str_tolower(wchar_t* 文本);
static void str_sub(char* str, size_t start, size_t len, char* outstr, bool endzero = false);
static void str_sub(wchar_t* str, size_t start, size_t len, wchar_t* outstr, bool endzero = false);
static bool str_cmp(char* str1, char* str2);
static bool str_cmp(wchar_t* str1, wchar_t* str2);
static size_t str_replace(char* str, char* find, char* rep, char* outstr, intptr_t count = -1);
static size_t str_replace(wchar_t* str, wchar_t* find, wchar_t* rep, wchar_t* outstr, intptr_t count = -1);
static intptr_t str_find(char* str, char* find);
static intptr_t str_find(wchar_t* str, wchar_t* find);
static intptr_t str_rfind(char* str, char* rfind);
static intptr_t str_rfind(wchar_t* str, wchar_t* rfind);
static char* str_copy(char* str, char* copy, bool endzero = false);
static wchar_t* str_copy(wchar_t* str, wchar_t* copy, bool endzero = false);
static bool hexcmp(char* hex1, char* hex2, size_t count);
static intptr_t hexfind(char* hex, size_t hexlen, char* find, size_t findlen);
static intptr_t hexrfind(char* hex, size_t hexlen, char* find, size_t findlen);
};typedef long long llong;
class demo_hys
{public: static size_t str_len(char* str);
static size_t str_len(wchar_t* str);
static char* str_reverse(char* str);
static wchar_t* str_reverse(wchar_t* str);
static int ctoi(char* c);
static int ctoi(wchar_t* c);
static wchar_t itoc(size_t num);
static intptr_t strtohex(char* str);
static intptr_t strtohex(wchar_t* str);
static intptr_t hextoint(char* str);
static intptr_t hextoint(wchar_t* str);
static llong hextolong(char* str);
static llong hextolong(wchar_t* str);
static char* inttohex(intptr_t num, char* phex);
static wchar_t* inttohex(intptr_t num, wchar_t* phex);
static char* longtohex(llong num, char* phex);
static wchar_t* longtohex(llong num, wchar_t* phex);
static size_t str_getnumlenth(char* str);
static size_t str_getnumlenth(wchar_t* str);
static size_t inttostr(intptr_t num, char* pstr);
static size_t inttostr(intptr_t num, wchar_t* pstr);
static size_t longtostr(llong num, char* pstr);
static size_t longtostr(llong num, wchar_t* pstr);
static intptr_t strtoint(char* str);
static intptr_t strtoint(wchar_t* str);
static llong strtolong(char* str);
static llong strtolong(wchar_t* str);
static double strtodouble(char* str);
static double strtodouble(wchar_t* str);
static char* str_delspace(char* str);
static wchar_t* str_delspace(wchar_t* str);
static char* str_toupper(char* 文本);
static wchar_t* str_toupper(wchar_t* 文本);
static char* str_tolower(char* 文本);
static wchar_t* str_tolower(wchar_t* 文本);
static void str_sub(char* str, size_t start, size_t len, char* outstr, bool endzero = false);
static void str_sub(wchar_t* str, size_t start, size_t len, wchar_t* outstr, bool endzero = false);
static bool str_cmp(char* str1, char* str2);
static bool str_cmp(wchar_t* str1, wchar_t* str2);
static size_t str_replace(char* str, char* find, char* rep, char* outstr, intptr_t count = -1);
static size_t str_replace(wchar_t* str, wchar_t* find, wchar_t* rep, wchar_t* outstr, intptr_t count = -1);
static intptr_t str_find(char* str, char* find);
static intptr_t str_find(wchar_t* str, wchar_t* find);
static intptr_t str_rfind(char* str, char* rfind);
static intptr_t str_rfind(wchar_t* str, wchar_t* rfind);
static char* str_copy(char* str, char* copy, bool endzero = false);
static wchar_t* str_copy(wchar_t* str, wchar_t* copy, bool endzero = false);
static bool hexcmp(char* hex1, char* hex2, size_t count);
static intptr_t hexfind(char* hex, size_t hexlen, char* find, size_t findlen);
static intptr_t hexrfind(char* hex, size_t hexlen, char* find, size_t findlen);
};///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#define NULL 0///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
size_t demo_hys::str_len(char* str)
{ char* p = str;
while (*p) { p++; }
return p - str;
}//---------------------------------------------------------------------------------------
size_t demo_hys::str_len(wchar_t* str)
{ wchar_t* p = str;
while (*p) { p++; }
return p - str;
}//---------------------------------------------------------------------------------------
char* demo_hys::str_reverse(char* str)
{ size_t slen = str_len(str);
char* p = str + slen;
char tmp = NULL;
while (--p > str)
{
tmp = *str;
*str++ = *p;
*p = tmp;
}
return str - slen / 2;
}//---------------------------------------------------------------------------------------
wchar_t* demo_hys::str_reverse(wchar_t* str)
{ size_t slen = str_len(str);
wchar_t* p = str + slen; wchar_t tmp = NULL;
while (--p > str)
{
tmp = *str;
*str++ = *p;
*p = tmp;
}
return str - slen / 2;
}//---------------------------------------------------------------------------------------
//把单个字符【0-9】和【a-f】转为数值_失败返回-1
int demo_hys::ctoi(char* c)
{ //判断是否0-9的字符
if (*c <= '9')
{
if (*c >= '0')
{
return *c - '0';
}
}
//判断是否A-F的字符
else if (*c <= 'F')
{
if (*c >= 'A')
{
return *c - 'A' + 10;
}
}
//判断是否a-f的字符
else if (*c <= 'f')
{
if (*c >= 'a')
{
return *c - 'a' + 10;
}
}
//失败返回【-1】
return -1;
}//---------------------------------------------------------------------------------------
//把单个字符【0-9】和【a-f】转为数值_失败返回-1
int demo_hys::ctoi(wchar_t* c)
{ //判断是否0-9的字符
if (*c <= L'9')
{
if (*c >= L'0')
{
return *c - L'0';
}
}
//判断是否A-F的字符
else if (*c <= L'F')
{
if (*c >= L'A')
{
return *c - L'A' + 10;
}
}
//判断是否a-f的字符
else if (*c <= L'f')
{
if (*c >= L'a')
{
return *c - L'a' + 10;
}
}
//失败返回【-1】
return -1;
}//---------------------------------------------------------------------------------------
//失败返回值【S】，成功返回一个字符【1-9】【A-F】
wchar_t demo_hys::itoc(size_t num){ if (num <= 9)
{
return (wchar_t)((num + '0') & 0xff);//数字
}
else if (num <= 15)
{
return (wchar_t)((num - 10 + 'A') & 0xff); //字符
}
else
{
return L'S';//错误
}
}//---------------------------------------------------------------------------------------
//成功返回十六进制数值，失败返回【-1】
intptr_t demo_hys::strtohex(char* str)
{ int tens = NULL, ones = NULL;
tens = ctoi(str++); //十位数
ones = ctoi(str);//个位数
if (ones == -1 || tens == -1)
{
return -1;
}
return ones * 16 + tens;
}//---------------------------------------------------------------------------------------
//成功返回十六进制数值，失败返回【-1】
intptr_t demo_hys::strtohex(wchar_t* 文本)
{ int tens = NULL, ones = NULL;
tens = ctoi(文本++);//十位数
ones = ctoi(文本);//个位数
if (ones == -1 || tens == -1)
{
return -1;
}
return ones * 16 + tens;
}//---------------------------------------------------------------------------------------
intptr_t demo_hys::hextoint(char* str)
{ char pint[10] = { 0 };
intptr_t ilen = sizeof(intptr_t);
intptr_t hexlen = str_len(str) / 2;
if (hexlen < ilen)
{
ilen = hexlen;
}
while (ilen--)
{
pint[ilen] = (char)strtohex(str);
str += 2;
}
return *(intptr_t*)pint;
}//---------------------------------------------------------------------------------------
intptr_t demo_hys::hextoint(wchar_t* str)
{ char pint[10] = { 0 };
intptr_t ilen = sizeof(intptr_t);
intptr_t hexlen = str_len(str) / 2;
if (hexlen < ilen)
{
ilen = hexlen;
}
while (ilen--)
{
pint[ilen] = (char)strtohex(str);
str += 2;
}
return *(intptr_t*)pint;
}//---------------------------------------------------------------------------------------
llong demo_hys::hextolong(char* str)
{ char pint[22] = { 0 };
intptr_t longlen = sizeof(llong);
intptr_t hexlen = str_len(str) / 2;
if (hexlen < longlen)
{
longlen = hexlen;
}
while (longlen--)
{
pint[longlen] = (char)strtohex(str);
str += 2;
}
return *(llong*)pint;
}//---------------------------------------------------------------------------------------
llong demo_hys::hextolong(wchar_t* str)
{ char pint[22] = { 0 };
intptr_t longlen = sizeof(llong);
intptr_t hexlen = str_len(str) / 2;
if (hexlen < longlen)
{
longlen = hexlen;
}
while (longlen--)
{
pint[longlen] = (char)strtohex(str);
str += 2;
}
return *(llong*)pint;
}//---------------------------------------------------------------------------------------
//返回文本指针_可以忽略返回值_直接使用传进来的结果文本
char* demo_hys::inttohex(intptr_t num, char* phex)
{ char* p = (char*)#
size_t ilen = sizeof(intptr_t);
phex += ilen * 2;
char ichar[10] = { 0 };
*phex = NULL;
while (ilen--)
{
ichar[0] = *p++;
*--phex = (char)itoc(*(size_t*)ichar % 16);
*--phex = (char)itoc(*(size_t*)ichar / 16);
}
return phex;
}//---------------------------------------------------------------------------------------
//返回文本指针_可以忽略返回值_直接使用传进来的结果文本
wchar_t* demo_hys::inttohex(intptr_t num, wchar_t* phex)
{ char* p = (char*)#
size_t ilen = sizeof(intptr_t);
phex += ilen * 2;
char ichar[10] = { 0 };
*phex = NULL;
while (ilen--)
{
ichar[0] = *p++;
*--phex = (char)itoc(*(size_t*)ichar % 16);
*--phex = (char)itoc(*(size_t*)ichar / 16);
}
return phex;
}//---------------------------------------------------------------------------------------
//返回文本指针_可以忽略返回值_直接使用传进来的结果文本
char* demo_hys::longtohex(llong num, char* phex)
{ char* p = (char*)#
size_t ilen = sizeof(llong);
phex += ilen * 2;
char ichar[10] = { 0 };
*phex = NULL;
while (ilen--)
{
ichar[0] = *p++;
*--phex = (char)itoc(*(size_t*)ichar % 16);
*--phex = (char)itoc(*(size_t*)ichar / 16);
}
return phex;
}//---------------------------------------------------------------------------------------
//返回文本指针_可以忽略返回值_直接使用传进来的结果文本
wchar_t* demo_hys::longtohex(llong num, wchar_t* phex)
{ char* p = (char*)#
size_t ilen = sizeof(llong);
phex += ilen * 2;
char ichar[10] = { 0 };
*phex = NULL;
while (ilen--)
{
ichar[0] = *p++;
*--phex = (char)itoc(*(size_t*)ichar % 16);
*--phex = (char)itoc(*(size_t*)ichar / 16);
}
return phex;
}//---------------------------------------------------------------------------------------
//只取连续的【0-9】数字的长度
size_t demo_hys::str_getnumlenth(char* str)
{ char* p = str;
while (*p <= '9' && *p >= '0')
{
p++;
}
return p - str;
}//---------------------------------------------------------------------------------------
//只取连续的【0-9】数字的长度
size_t demo_hys::str_getnumlenth(wchar_t* str)
{ wchar_t* p = str;
while (*p <= L'9' && *p >= L'0')
{
p++;
}
return p - str;
}//---------------------------------------------------------------------------------------
//返回文本长度
size_t demo_hys::inttostr(intptr_t num, char* pstr)
{ char* p = pstr;
size_t flag = NULL;//负数标志位
if (!num)
{
*pstr++ = '0';
*pstr = NULL;
return 1;
}
if (num < 0)
{
*p++ = '-';
num *= -1;
pstr++;
flag = 1;
}
while (num > 0)
{
*p++ = (char)itoc(num % 10);
num /= 10;
}
*p = NULL;
str_reverse(pstr);
return p - pstr + flag;
}//---------------------------------------------------------------------------------------
//返回文本长度
size_t demo_hys::inttostr(intptr_t num, wchar_t* pstr)
{ wchar_t* p = pstr;
size_t flag = NULL;//负数
if (!num)
{
*pstr++ = L'0';
*pstr = NULL;
return 1;
}
if (num < 0)
{
*p++ = L'-';
num *= -1;
pstr++;
flag = 1;
}
while (num > 0)
{
*p++ = itoc(num % 10);
num /= 10;
}
*p = NULL;
str_reverse(pstr);
return p - pstr + flag;
}//---------------------------------------------------------------------------------------
//返回文本长度
size_t demo_hys::longtostr(llong num, char* pstr)
{ char* p = pstr;
size_t flag = NULL;//负数
if (!num)
{
*pstr++ = '0';
*pstr = NULL;
return 1;
}
if (num < 0)
{
*p++ = '-';
num *= -1;
pstr++;
flag = 1;
}
while (num > 0)
{
*p++ = (char)itoc(num % 10);
num /= 10;
}
*p = NULL;
str_reverse(pstr);
return p - pstr + flag;
}//---------------------------------------------------------------------------------------
//返回文本长度
size_t demo_hys::longtostr(llong num, wchar_t* pstr)
{ wchar_t* p = pstr;
size_t flag = NULL;
if (!num)
{
*pstr++ = L'0';
*pstr = NULL;
return 1;
}
if (num < 0)
{
*p++ = L'-';
num *= -1;
pstr++;
flag = 1;
}
while (num > 0)
{
*p++ = itoc(num % 10);
num /= 10;
}
*p = NULL;
str_reverse(pstr);
return p - pstr + flag;
}//---------------------------------------------------------------------------------------
intptr_t demo_hys::strtoint(char* str)
{ intptr_t num = NULL;
intptr_t bit = 1;
intptr_t flag = 1;//正负数标志位
int i = NULL;
if (*str == '-')
{
flag = -1;
str++;
}
size_t len = str_getnumlenth(str);
--str += len;
while (len--)
{
i = ctoi(str--);
if (i == -1) { break; }
num += i * bit;
bit *= 10;
}
return num * flag;
}//---------------------------------------------------------------------------------------
intptr_t demo_hys::strtoint(wchar_t* str)
{ intptr_t num = NULL;
intptr_t bit = 1;
intptr_t flag = 1;//正负数标志位
int i = NULL;
if (*str == L'-')
{
flag = -1;
str++;
}
size_t len = str_getnumlenth(str);
--str += len;
while (len--)
{
i = ctoi(str--);
if (i == -1) { break; }
num += i * bit;
bit *= 10;
}
return num * flag;
}//---------------------------------------------------------------------------------------
llong demo_hys::strtolong(char* str)
{ llong num = NULL;
llong bit = 1;
llong flag = 1;//正负数标志位
int i = NULL;
if (*str == '-')
{
flag = -1;
str++;
}
size_t len = str_getnumlenth(str);
--str += len;
while (len--)
{
i = ctoi(str--);
if (i == -1) { break; }
num += i * bit;
bit *= 10;
}
return num * flag;
}//---------------------------------------------------------------------------------------
llong demo_hys::strtolong(wchar_t* str)
{ llong num = NULL;
llong bit = 1;
llong flag = 1;//正负数标志位
int i = NULL;
if (*str == L'-')
{
flag = -1;
str++;
}
size_t len = str_getnumlenth(str);
--str += len;
while (len--)
{
i = ctoi(str--);
if (i == -1) { break; }
num += i * bit;
bit *= 10;
}
return num * flag;
}//---------------------------------------------------------------------------------------
double demo_hys::strtodouble(char* str)
{ double num = NULL;
double bit = 1;
double flag = 1;//正负数标志
int i = NULL;
if (*str == '-')
{
flag = -1;
str++;
}
size_t len = str_getnumlenth(str);
--str += len;
char* p = str;
//处理整数部分
while (len--)
{
i = ctoi(str--);
if (i == -1) { break; }
num += i * bit;
bit *= 10;
}
//处理小数部分
if (*++p == '.')
{
len = str_getnumlenth(++p);
bit = 10;
while (len--) {
i = ctoi(p++);
if (i == -1) { break; }
num += i / bit;
bit *= 10;
}
}
return num * flag;
}//---------------------------------------------------------------------------------------
double demo_hys::strtodouble(wchar_t* str)
{ double num = NULL;
double bit = 1;
double flag = 1;//正负数标志
int i = NULL;
if (*str == L'-')
{
flag = -1;
str++;
}
size_t len = str_getnumlenth(str);
--str += len;
wchar_t* p = str;
//处理整数部分
while (len--)
{
i = ctoi(str--);
if (i == -1) { break; }
num += i * bit;
bit *= 10;
}
//处理小数部分
if (*++p == '.')
{
len = str_getnumlenth(++p);
bit = 10;
while (len--) {
i = ctoi(p++);
if (i == -1) { break; }
num += i / bit;
bit *= 10;
}
}
return num * flag;
}//---------------------------------------------------------------------------------------
//返回值是文本的指针，没有特殊使用无视返回值即可，传进来的文本空格已经被过滤了
char* demo_hys::str_delspace(char* str)
{ char* p = str;
char* ret = str;
//字符串结尾为0，非0就继续
while (*p)
{
//空格0x20 全角空格0xa1【0xffffffa1】 制表符0x09
if (*p == ' ' || *p == (char)0xffffffa1 || *p == '\t')
{
p++;
}
else
{
*str++ = *p++;
}
}
*str = 0;
return ret;
}//---------------------------------------------------------------------------------------
//返回值是文本的指针，没有特殊使用无视返回值即可，传进来的文本空格已经被过滤了
wchar_t* demo_hys::str_delspace(wchar_t* str)
{ wchar_t* p = str, * ret = str;
//字符串结尾为0，非0就继续
while (*p)
{
//空格0x20 全角空格0x3000 制表符0x09
if (*p == L' ' || *p == 0x3000 || *p == L'\t')
{
p++;
}
else
{
*str++ = *p++;
}
}
*str = 0;
return ret;
}//---------------------------------------------------------------------------------------
//返回值是文本的指针，没有特殊使用无视返回值即可，传进来的文本字母已经转为大写
char* demo_hys::str_toupper(char* str)
{ char* p = str;
char con = 'a' - 'A';
//字符串结尾为0，非0就继续
while (*p)
{
if (*p <= 'z' && *p >= 'a')
{
*p++ = *p - con;
}
p++;
}
return str;
}//---------------------------------------------------------------------------------------
//返回值是文本的指针，没有特殊使用无视返回值即可，传进来的文本字母已经转为大写
wchar_t* demo_hys::str_toupper(wchar_t* str)
{ wchar_t* p = str;
wchar_t con = 'a' - 'A';
//字符串结尾为0，非0就继续
while (*p)
{
if (*p <= L'z' && *p >= L'a')
{
*p++ = *p - con;
}
p++;
}
return str;
}//---------------------------------------------------------------------------------------
//返回值是文本的指针，没有特殊使用无视返回值即可，传进来的文本字母已经转为小写
char* demo_hys::str_tolower(char* str)
{ char* p = str;
char con = 'a' - 'A';
//字符串结尾为0，非0就继续
while (*p)
{
if (*p <= 'Z' && *p >= 'A')
{
*p++ = *p + con;
}
p++;
}
return str;
}//---------------------------------------------------------------------------------------
//返回值是文本的指针，没有特殊使用无视返回值即可，传进来的文本字母已经转为小写
wchar_t* demo_hys::str_tolower(wchar_t* str)
{ wchar_t* p = str;
wchar_t con = 'a' - 'A';
//字符串结尾为0，非0就继续
while (*p)
{
if (*p <= L'Z' && *p >= L'A')
{
*p++ = *p + con;
}
p++;
}
return str;
}//---------------------------------------------------------------------------------------
//尾部清零是为了处理某没有初始化的变量，或者是保存文本_本身有数据之类的情况
void demo_hys::str_sub(char* str, size_t start, size_t len, char* outstr, bool endzero)
{ str += start;
for (size_t i = 0; i < len; i++)
{
*outstr++ = *str;
}
if (endzero)
{
*outstr = NULL;
}
}//---------------------------------------------------------------------------------------
//【尾部清零】是为了处理某没有初始化的变量，或者是保存文本_本身有数据之类的情况
void demo_hys::str_sub(wchar_t* str, size_t start, size_t len, wchar_t* outstr, bool endzero)
{ str += start;
for (size_t i = 0; i < len; i++)
{
*outstr++ = *str;
}
if (endzero)
{
*outstr = NULL;
}
}//---------------------------------------------------------------------------------------
//一样返回真，不一样返回假
bool demo_hys::str_cmp(char* str1, char* str2)
{ while (*str1 && *str2)
{
if (*str1++ != *str2++)
{
return false;
}
}
return true;
}//---------------------------------------------------------------------------------------
//一样返回真，不一样返回假
bool demo_hys::str_cmp(wchar_t* str1, wchar_t* str2)
{ while (*str1 && *str2)
{
if (*str1++ != *str2++)
{
return false;
}
}
return true;
}//---------------------------------------------------------------------------------------
//返回文本长度_替换次数默认无限
size_t demo_hys::str_replace(char* str, char* find, char* rep, char* outstr, intptr_t count)
{ size_t len = NULL;
size_t findlen = str_len(find);
while (*str)
{
//比较文本是否一样，真就代表有需要查找的文本，所以我们需要替换
if (!count && str_cmp(str, find))
{
while (*rep) { *outstr++ = *rep++; len++; }
if (!count) { count--; } str += findlen;
}
//如果不一样就继续下一个
else { *outstr++ = *str++; len++; }
}
return len;
}//---------------------------------------------------------------------------------------
//返回文本长度_替换次数默认无限
size_t demo_hys::str_replace(wchar_t* str, wchar_t* find, wchar_t* rep, wchar_t* outstr, intptr_t count)
{ size_t len = NULL;
size_t findlen = str_len(find);
while (*str)
{
//比较文本是否一样，真就代表有需要查找的文本，所以我们需要替换
if (!count && str_cmp(str, find))
{
while (*rep)
{
*outstr++ = *rep++;
len++;
}
if (!count)
{
count--;
}
str += findlen;
}
//如果不一样就继续下一个
else
{
*outstr++ = *str++;
len++;
}
}
return len;
}//---------------------------------------------------------------------------------------
//返回要查找的文本第一个字符所在位置_失败返回-1
intptr_t demo_hys::str_find(char* str, char* find)
{ char* p = str;
while (*p)
{
if (str_cmp(p++, find))
{
return --p - str;
}
}
return -1;
}//---------------------------------------------------------------------------------------
//返回要查找的文本第一个字符所在位置_失败返回-1
intptr_t demo_hys::str_find(wchar_t* str, wchar_t* find)
{ wchar_t* p = str;
while (*p)
{
if (str_cmp(p++, find))
{
return --p - str;
}
}
return -1;
}//---------------------------------------------------------------------------------------
//返回要查找的文本第一个字符所在位置_失败返回-1
intptr_t demo_hys::str_rfind(char* str, char* rfind)
{ size_t len = str_len(str);
size_t rfindlen = str_len(rfind);
char* p = str + len - rfindlen;
while (*p)
{
if (str_cmp(p--, rfind))
{
return ++p - str;
}
}
return -1;
}//---------------------------------------------------------------------------------------
//返回要查找的文本第一个字符所在位置_失败返回-1
intptr_t demo_hys::str_rfind(wchar_t* str, wchar_t* rfind)
{ size_t len = str_len(str);
size_t rfindlen = str_len(rfind);
wchar_t* p = str + len - rfindlen;
while (*p)
{
if (str_cmp(p--, rfind))
{
return ++p - str;
}
}
return -1;
}//---------------------------------------------------------------------------------------
//源文本为要写入拷贝文本的指针地址_返回源文本指针
char* demo_hys::str_copy(char* str, char* copy, bool endzero)
{ char* p = str;
while (*copy)
{
*str++ = *copy++;
}
if (endzero)
{
*str = NULL;
}
return p;
}//---------------------------------------------------------------------------------------
//源文本为要写入拷贝的指针地址_返回源指针
wchar_t* demo_hys::str_copy(wchar_t* str, wchar_t* copy, bool endzero)
{ wchar_t* p = str;
while (*copy)
{
*str++ = *copy++;
}
if (endzero)
{
*str = NULL;
}
return p;
}//---------------------------------------------------------------------------------------
//对比字节集，一样返回真，失败返回假_对比长度如果只有一个字节，就不要用这个对比了
bool demo_hys::hexcmp(char* hex1, char* hex2, size_t count)
{ size_t loop = 1;
//对比第一个和最后一个字节是否一致
if (*hex1 != *hex2 ||
*(hex1++ + --count) != *(hex2++ + count--))
{
return false;
}
//先双数后单数循环对比
match: for (size_t i = loop; i < count; i += 2)
{
if (*(hex1 + i) != *(hex2 + i))
{
return false;
}
}
if (loop)
{
loop = 0;
goto match;
}
return true;
}//---------------------------------------------------------------------------------------
//成功返回查找字节集第一个字节的位置，失败返回-1
intptr_t demo_hys::hexfind(char* hex, size_t hexlen, char* find, size_t findlen)
{ char* p = hex;
if (findlen == 1)
{
while (hexlen--)
{
if (*p++ == *find)
{
return --p - hex;
}
}
}
else
{
while (hexlen-- >= findlen)
{
if (hexcmp(p++, find, findlen))
{
return --p - hex;
}
}
}
return -1;
}//---------------------------------------------------------------------------------------
//成功返回查找字节集第一个字节的位置，失败返回-1
intptr_t demo_hys::hexrfind(char* hex, size_t hexlen, char* find, size_t findlen)
{ char* p = hex + hexlen - findlen;
while (hexlen-- >= findlen)
{
if (hexcmp(p--, find, findlen))
{
return ++p - hex;
}
}
return -1;
}//---------------------------------------------------------------------------------------
//---------------------------------------------------------------------------------------
//---------------------------------------------------------------------------------------
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#define NULL 0///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
size_t demo_hys::str_len(char* str)
{ char* p = str;
while (*p) { p++; }
return p - str;
}//---------------------------------------------------------------------------------------
size_t demo_hys::str_len(wchar_t* str)
{ wchar_t* p = str;
while (*p) { p++; }
return p - str;
}//---------------------------------------------------------------------------------------
char* demo_hys::str_reverse(char* str)
{ size_t slen = str_len(str);
char* p = str + slen;
char tmp = NULL;
while (--p > str)
{
tmp = *str;
*str++ = *p;
*p = tmp;
}
return str - slen / 2;
}//---------------------------------------------------------------------------------------
wchar_t* demo_hys::str_reverse(wchar_t* str)
{ size_t slen = str_len(str);
wchar_t* p = str + slen; wchar_t tmp = NULL;
while (--p > str)
{
tmp = *str;
*str++ = *p;
*p = tmp;
}
return str - slen / 2;
}//---------------------------------------------------------------------------------------
//把单个字符【0-9】和【a-f】转为数值_失败返回-1
int demo_hys::ctoi(char* c)
{ //判断是否0-9的字符
if (*c <= '9')
{
if (*c >= '0')
{
return *c - '0';
}
}
//判断是否A-F的字符
else if (*c <= 'F')
{
if (*c >= 'A')
{
return *c - 'A' + 10;
}
}
//判断是否a-f的字符
else if (*c <= 'f')
{
if (*c >= 'a')
{
return *c - 'a' + 10;
}
}
//失败返回【-1】
return -1;
}//---------------------------------------------------------------------------------------
//把单个字符【0-9】和【a-f】转为数值_失败返回-1
int demo_hys::ctoi(wchar_t* c)
{ //判断是否0-9的字符
if (*c <= L'9')
{
if (*c >= L'0')
{
return *c - L'0';
}
}
//判断是否A-F的字符
else if (*c <= L'F')
{
if (*c >= L'A')
{
return *c - L'A' + 10;
}
}
//判断是否a-f的字符
else if (*c <= L'f')
{
if (*c >= L'a')
{
return *c - L'a' + 10;
}
}
//失败返回【-1】
return -1;
}//---------------------------------------------------------------------------------------
//失败返回值【S】，成功返回一个字符【1-9】【A-F】
wchar_t demo_hys::itoc(size_t num){ if (num <= 9)
{
return (wchar_t)((num + '0') & 0xff);//数字
}
else if (num <= 15)
{
return (wchar_t)((num - 10 + 'A') & 0xff); //字符
}
else
{
return L'S';//错误
}
}//---------------------------------------------------------------------------------------
//成功返回十六进制数值，失败返回【-1】
intptr_t demo_hys::strtohex(char* str)
{ int tens = NULL, ones = NULL;
tens = ctoi(str++); //十位数
ones = ctoi(str);//个位数
if (ones == -1 || tens == -1)
{
return -1;
}
return ones * 16 + tens;
}//---------------------------------------------------------------------------------------
//成功返回十六进制数值，失败返回【-1】
intptr_t demo_hys::strtohex(wchar_t* 文本)
{ int tens = NULL, ones = NULL;
tens = ctoi(文本++);//十位数
ones = ctoi(文本);//个位数
if (ones == -1 || tens == -1)
{
return -1;
}
return ones * 16 + tens;
}//---------------------------------------------------------------------------------------
intptr_t demo_hys::hextoint(char* str)
{ char pint[10] = { 0 };
intptr_t ilen = sizeof(intptr_t);
intptr_t hexlen = str_len(str) / 2;
if (hexlen < ilen)
{
ilen = hexlen;
}
while (ilen--)
{
pint[ilen] = (char)strtohex(str);
str += 2;
}
return *(intptr_t*)pint;
}//---------------------------------------------------------------------------------------
intptr_t demo_hys::hextoint(wchar_t* str)
{ char pint[10] = { 0 };
intptr_t ilen = sizeof(intptr_t);
intptr_t hexlen = str_len(str) / 2;
if (hexlen < ilen)
{
ilen = hexlen;
}
while (ilen--)
{
pint[ilen] = (char)strtohex(str);
str += 2;
}
return *(intptr_t*)pint;
}//---------------------------------------------------------------------------------------
llong demo_hys::hextolong(char* str)
{ char pint[22] = { 0 };
intptr_t longlen = sizeof(llong);
intptr_t hexlen = str_len(str) / 2;
if (hexlen < longlen)
{
longlen = hexlen;
}
while (longlen--)
{
pint[longlen] = (char)strtohex(str);
str += 2;
}
return *(llong*)pint;
}//---------------------------------------------------------------------------------------
llong demo_hys::hextolong(wchar_t* str)
{ char pint[22] = { 0 };
intptr_t longlen = sizeof(llong);
intptr_t hexlen = str_len(str) / 2;
if (hexlen < longlen)
{
longlen = hexlen;
}
while (longlen--)
{
pint[longlen] = (char)strtohex(str);
str += 2;
}
return *(llong*)pint;
}//---------------------------------------------------------------------------------------
//返回文本指针_可以忽略返回值_直接使用传进来的结果文本
char* demo_hys::inttohex(intptr_t num, char* phex)
{ char* p = (char*)#
size_t ilen = sizeof(intptr_t);
phex += ilen * 2;
char ichar[10] = { 0 };
*phex = NULL;
while (ilen--)
{
ichar[0] = *p++;
*--phex = (char)itoc(*(size_t*)ichar % 16);
*--phex = (char)itoc(*(size_t*)ichar / 16);
}
return phex;
}//---------------------------------------------------------------------------------------
//返回文本指针_可以忽略返回值_直接使用传进来的结果文本
wchar_t* demo_hys::inttohex(intptr_t num, wchar_t* phex)
{ char* p = (char*)#
size_t ilen = sizeof(intptr_t);
phex += ilen * 2;
char ichar[10] = { 0 };
*phex = NULL;
while (ilen--)
{
ichar[0] = *p++;
*--phex = (char)itoc(*(size_t*)ichar % 16);
*--phex = (char)itoc(*(size_t*)ichar / 16);
}
return phex;
}//---------------------------------------------------------------------------------------
//返回文本指针_可以忽略返回值_直接使用传进来的结果文本
char* demo_hys::longtohex(llong num, char* phex)
{ char* p = (char*)#
size_t ilen = sizeof(llong);
phex += ilen * 2;
char ichar[10] = { 0 };
*phex = NULL;
while (ilen--)
{
ichar[0] = *p++;
*--phex = (char)itoc(*(size_t*)ichar % 16);
*--phex = (char)itoc(*(size_t*)ichar / 16);
}
return phex;
}//---------------------------------------------------------------------------------------
//返回文本指针_可以忽略返回值_直接使用传进来的结果文本
wchar_t* demo_hys::longtohex(llong num, wchar_t* phex)
{ char* p = (char*)#
size_t ilen = sizeof(llong);
phex += ilen * 2;
char ichar[10] = { 0 };
*phex = NULL;
while (ilen--)
{
ichar[0] = *p++;
*--phex = (char)itoc(*(size_t*)ichar % 16);
*--phex = (char)itoc(*(size_t*)ichar / 16);
}
return phex;
}//---------------------------------------------------------------------------------------
//只取连续的【0-9】数字的长度
size_t demo_hys::str_getnumlenth(char* str)
{ char* p = str;
while (*p <= '9' && *p >= '0')
{
p++;
}
return p - str;
}//---------------------------------------------------------------------------------------
//只取连续的【0-9】数字的长度
size_t demo_hys::str_getnumlenth(wchar_t* str)
{ wchar_t* p = str;
while (*p <= L'9' && *p >= L'0')
{
p++;
}
return p - str;
}//---------------------------------------------------------------------------------------
//返回文本长度
size_t demo_hys::inttostr(intptr_t num, char* pstr)
{ char* p = pstr;
size_t flag = NULL;//负数标志位
if (!num)
{
*pstr++ = '0';
*pstr = NULL;
return 1;
}
if (num < 0)
{
*p++ = '-';
num *= -1;
pstr++;
flag = 1;
}
while (num > 0)
{
*p++ = (char)itoc(num % 10);
num /= 10;
}
*p = NULL;
str_reverse(pstr);
return p - pstr + flag;
}//---------------------------------------------------------------------------------------
//返回文本长度
size_t demo_hys::inttostr(intptr_t num, wchar_t* pstr)
{ wchar_t* p = pstr;
size_t flag = NULL;//负数
if (!num)
{
*pstr++ = L'0';
*pstr = NULL;
return 1;
}
if (num < 0)
{
*p++ = L'-';
num *= -1;
pstr++;
flag = 1;
}
while (num > 0)
{
*p++ = itoc(num % 10);
num /= 10;
}
*p = NULL;
str_reverse(pstr);
return p - pstr + flag;
}//---------------------------------------------------------------------------------------
//返回文本长度
size_t demo_hys::longtostr(llong num, char* pstr)
{ char* p = pstr;
size_t flag = NULL;//负数
if (!num)
{
*pstr++ = '0';
*pstr = NULL;
return 1;
}
if (num < 0)
{
*p++ = '-';
num *= -1;
pstr++;
flag = 1;
}
while (num > 0)
{
*p++ = (char)itoc(num % 10);
num /= 10;
}
*p = NULL;
str_reverse(pstr);
return p - pstr + flag;
}//---------------------------------------------------------------------------------------
//返回文本长度
size_t demo_hys::longtostr(llong num, wchar_t* pstr)
{ wchar_t* p = pstr;
size_t flag = NULL;
if (!num)
{
*pstr++ = L'0';
*pstr = NULL;
return 1;
}
if (num < 0)
{
*p++ = L'-';
num *= -1;
pstr++;
flag = 1;
}
while (num > 0)
{
*p++ = itoc(num % 10);
num /= 10;
}
*p = NULL;
str_reverse(pstr);
return p - pstr + flag;
}//---------------------------------------------------------------------------------------
intptr_t demo_hys::strtoint(char* str)
{ intptr_t num = NULL;
intptr_t bit = 1;
intptr_t flag = 1;//正负数标志位
int i = NULL;
if (*str == '-')
{
flag = -1;
str++;
}
size_t len = str_getnumlenth(str);
--str += len;
while (len--)
{
i = ctoi(str--);
if (i == -1) { break; }
num += i * bit;
bit *= 10;
}
return num * flag;
}//---------------------------------------------------------------------------------------
intptr_t demo_hys::strtoint(wchar_t* str)
{ intptr_t num = NULL;
intptr_t bit = 1;
intptr_t flag = 1;//正负数标志位
int i = NULL;
if (*str == L'-')
赞赏
他的文章
赞赏
雪币:
留言:
