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C/C++: Ê®Áù½øÖÆ×ª10½øÖÆÔ´Âë ÊÕ²Ø

C/C++: Ê®Áù½øÖÆ×ª10½øÖÆÔ´Âë
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int
 hex_char_value(
char
 c)  
{  
    if
(c >= 
'0'
 && c <= 
'9'
)  
        return
 c - 
'0'
;  
    else
 
if
(c >= 
'a'
 && c <= 
'f'
)  
        return
 (c - 
'a'
 + 10);  
    else
 
if
(c >= 
'A'
 && c <= 
'F'
)  
        return
 (c - 
'A'
 + 10);  
    assert(0);  
    return
 0;  
}  
int
 hex_to_decimal(
const
 
char
* szHex, 
int
 len)  
{  
    int
 result = 0;  
    for
(
int
 i = 0; i < len; i++)  
    {  
        result += (int
)pow((
float
)16, (
int
)len-i-1) * hex_char_value(szHex[i]);  
    }  
    return
 result;  
}  
int hex_char_value(char c)
{
if(c >= '0' && c <= '9')
return c - '0';
else if(c >= 'a' && c <= 'f')
return (c - 'a' + 10);
else if(c >= 'A' && c <= 'F')
return (c - 'A' + 10);
assert(0);
return 0;
}
int hex_to_decimal(const char* szHex, int len)
{
int result = 0;
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#include <stdio.h>
#define bits(p, d) { \
int _tmp=p->d, _bits=0; \
for (p->d=1; p->d; p->d<<=1) \
_bits++; \
p->d=_tmp; \
printf("%s->%s has %d bits", #p, #d, _bits); \
}
typedef struct _s{
int a:4;
} S;
int main()
{
S tmp, ......

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package com.commnt;
import java.net.*;
import java.io.*;
public class Client {
public String send(String address, int port, String str) {
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