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深入浅出计算机字符集编码 - C/C++ - 清泛网 - 专注C/C++及内核技术
...二进制内容，不同的编码环境下显示不一致：
unsigned char j = 0xa1;
for(; j < 0xdf-30; j++)
{
char p[1024];
sprintf(p, "%d\t%02x\t%o\t%c \t %d\t%02x\t%o\t%c", j,j,j,j, j+31,j+31,j+31,j+31);
std::cout << p << std::endl;
}
（整形，十六进制，八进制，字符...
How can query string parameters be forwarded through a proxy_pass with nginx?
... token is ""(empty str) for original request without args,because $is_args concat any var will be `?`
if ($is_args) { # if the request has args update token to "&"
set $token "&";
}
location /test {
set $args "${args}${token}k1=v1&k2=v2"; # update original append custom params ...
What's the difference between utf8_general_ci and utf8_unicode_ci?
...or "ǽ" == "æ". For sorting this makes sense but could be surprising when selecting via equalities or dealing with unique indices - bugs.mysql.com/bug.php?id=16526
– Mat Schaffer
Mar 13 '15 at 15:22
...
How does strtok() split the string into tokens in C?
...one token becomes the starting token of the next token?also is there a nul character placed in the place of the ending condition?
– user379888
Oct 8 '10 at 12:32
1
...
(Deep) copying an array using jQuery [duplicate]
...
similar: var a = [1,2,3]; var b = ([]).concat(a); b is a copy
– Yauhen Yakimovich
May 7 '12 at 15:38
...
Remove spaces from std::string in C++
...ed way to remove spaces from a string in C++? I could loop through all the characters and build a new string, but is there a better way?
...
TLSF源码及算法介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...(0xFFFFFFFF - PTR_MASK)
#define GET_NEXT_BLOCK(_addr, _r) ((bhdr_t *) ((char *) (_addr) + (_r)))
#define MEM_ALIGN ((BLOCK_ALIGN) - 1)
#define ROUNDUP_SIZE(_r) (((_r) + MEM_ALIGN) & ~MEM_ALIGN)
#define ROUNDDOWN_SIZE(_r) ((_r) & ~MEM_ALIGN)
#define ROUNDUP(_x, _v) ...
“Invalid JSON primitive” in Ajax processing
...
If I had to write code like that (string concat) to create JSON objects, I would kill myself (figuratively speaking). There has to be a better way.
– PandaWood
Feb 20 '13 at 23:32
...
Regular expression to get a string between two strings in Javascript
...ng pattern. However, a dot . in JavaScript regex does not match line break characters, so, what will work in 100% cases is a [^] or [\s\S]/[\d\D]/[\w\W] constructs.
ECMAScript 2018 and newer compatible solution
In JavaScript environments supporting ECMAScript 2018, s modifier allows . to match any c...
How can I read and parse CSV files in C++?
...0E+09
The code is written as a finite-state machine and is consuming one character at a time. I think it's easier to reason about.
#include <istream>
#include <string>
#include <vector>
enum class CSVState {
UnquotedField,
QuotedField,
QuotedQuote
};
std::vector<...