can't install vim to my new Ubuntu 12.04 安装不了vim

新装了一个ubuntu 12.04，缺发现安装不了VIM

Code:

sudo apt-get install vim

错误信息：

E: Package 'vim' has no installation candidate

使用以下方案解决问题：

先运行下 

Code:

sudo apt-get update

应该是更新源信息，然后再运行

Code:

sudo apt-get install vim

成功！

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I could not install vim to my new ubuntu 12.04

Code:

sudo apt-get install vim

can't install vim, got the error message:

E: Package 'vim' has no installation candidate

If you have only just installed Ubuntu, you need to run the following first:

Code:

sudo apt-get update

Then try installing vim again

Code:

sudo apt-get install vim

succeed！

gb18030 to ufg-8 in Linux

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

int code_convert(char *from_charset,char *to_charset,char *inbuf,int inlen,char *outbuf,int outlen)
{
        iconv_t cd;
        int rc;
        char **pin = &inbuf;
        char **pout = &outbuf;

        cd = iconv_open(to_charset,from_charset);
        if (cd==0)
        {
            printf("no support\n");
                return -1;
        }
        memset(outbuf,0,outlen);
        if (iconv(cd,pin,&inlen,pout,&outlen) == -1)
        {
            printf("conv error\n");
                return -1;
        }
        iconv_close(cd);
        return 0;
}

int u2g(char *inbuf,int inlen,char *outbuf,int outlen)
{
        return code_convert("utf-8","#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <iconv.h>

int code_convert(char *from_charset,char *to_charset,char *inbuf,int inlen,char *outbuf,int outlen)
{
        iconv_t cd;
        int rc;
        char **pin = &inbuf;
        char **pout = &outbuf;

        cd = iconv_open(to_charset,from_charset);
        if (cd==0)
        {
            printf("no support\n");
                return -1;
        }
        memset(outbuf,0,outlen);
        if (iconv(cd,pin,&inlen,pout,&outlen) == -1)
        {
            printf("conv error\n");
                return -1;
        }
        iconv_close(cd);
        return 0;
}

int u2g(char *inbuf,int inlen,char *outbuf,int outlen)
{
        return code_convert("utf-8","gb18030",inbuf,inlen,outbuf,outlen);
}

int g2u(char *inbuf,size_t inlen,char *outbuf,size_t outlen)
{
        return code_convert("gb18030","utf-8",inbuf,inlen,outbuf,outlen);
}

int main()
{
 char str_in[] = "王弢";
 char str_out[6] = {'1'};
 u2g(str_in, strlen(str_in), str_out, 4);
 printf("%d\n", strlen(str_out));
 printf("%d\n", strchr(str_out, '|') - str_out);
 return 0;
}",inbuf,inlen,outbuf,outlen);
}

int g2u(char *inbuf,size_t inlen,char *outbuf,size_t outlen)
{
        return code_convert("gb18030","utf-8",inbuf,inlen,outbuf,outlen);
}

int main()
{
 char str_in[] = "王弢";
 char str_out[6] = {'1'};
 u2g(str_in, strlen(str_in), str_out, 4);
 printf("%d\n", strlen(str_out));
 printf("%d\n", strchr(str_out, '|') - str_out);
 return 0;
}

Smoke testing

Heard this word from PM, wonder what's it.
Got it from wiki page.
 http://en.wikipedia.org/wiki/Smoke_testing

now some general understanding now.

Smoke testing refers to physical tests made to closed systems of pipes to detect cracks or breaks. By metaphorical extension, the term is also used for the first test made after assembly or repairs to a system, to provide some assurance that the system under test will not catastrophically fail. After a smoke test proves that "the pipes will not leak, the keys seal properly, the circuit will not burn, or the software will not crash outright,"^{[citation needed]} the system is ready for more robust testing.
The term smoke testing is used in several fields, including electronics, software development, plumbing, woodwind repair, infectious disease control, and the entertainment industry.