在使用Sqlite3时必须要用到的
使用方法:
char* src = “…”;//待转换的ANSI或UTF8字符串
char* dst = NULL;//保存由函数内部分配的内存指针,不需要传入内存缓冲区的
转换为UTF-8:to_utf8(src,&dst);
转换为ANSI:to_gb(src,&dst);
返回值:零 – 失败,非零 – 成功.
注意:如果操作成功,需要手动释放函数内部分配的空间:
复制代码 代码如下:
if(dst)
{
free(dst);
dst = NULL;
}
代码:
复制代码 代码如下:
#include <windows.h>
#include <stdio.h>int to_utf8(char* psrc,char** ppdst)
{
int ret,ret2;
wchar_t* pws = NULL;
char* putf = NULL;
ret = MultiByteToWideChar(CP_ACP,psrc,-1,NULL,0);
if(ret<=0){
*ppdst = NULL;
return 0;
}
pws = (wchar_t*)malloc(ret*2);
if(!pws){
*ppdst = NULL;
return 0;
}
MultiByteToWideChar(CP_ACP,pws,ret);
ret2 = WideCharToMultiByte(CP_UTF8,NULL);
if(ret2<=0){
free(pws);
return 0;
}
putf = (char*)malloc(ret2);
if(!putf){
free(pws);
return 0;
}
if(WideCharToMultiByte(CP_UTF8,ret,putf,ret2,NULL)){
*ppdst = putf;
free(pws);
return 1;
}else{
free(pws);
free(putf);
*ppdst = NULL;
return 0;
}
}
int to_gb(char* psrc,ret2;
wchar_t* pws = NULL;
char* pgb = NULL;
ret = MultiByteToWideChar(CP_UTF8,0);
if(ret<=0){
*ppdst = NULL;
return 0;
}
pws = (wchar_t*)malloc(ret*2);
if(!pws){
*ppdst = NULL;
return 0;
}
MultiByteToWideChar(CP_UTF8,ret);
ret2 = WideCharToMultiByte(CP_ACP,NULL);
if(ret2<=0){
free(pws);
return 0;
}
pgb = (char*)malloc(ret2);
if(!pgb){
free(pws);
*ppdst = NULL;
return 0;
}
if(WideCharToMultiByte(CP_ACP,pgb,NULL)){
*ppdst = pgb;
free(pws);
return 1;
}else{*ppdst = 0;
free(pgb);
free(pws);
return 0;
}
}
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