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boost自定义composite_key_compare比较函数 - C/C++ - 清泛网 - 专注C/C++及内核技术
...st::multi_index_container;
using namespace boost::multi_index;
typedef char IDType[81];
struct TParam
{
IDType ID;
bool IsValid;
};
typedef TParam* TParam_p;
struct TParamIDIndex { };
struct TParamValidIndex { };
struct customize_compare
{
int operator()(const IDType l, cons...
MiniDumpWriteDump 记录dmp文件的简单实例（附调试方法） - C/C++ - 清泛网...
...LONG WINAPI ExceptionHandler(LPEXCEPTION_POINTERS pExceptionPointers)
{
char szFile[MAX_PATH] = {0};
SYSTEMTIME st = {0};
GetLocalTime(&st);
sprintf_s(szFile, "xxx_%d%02d%02d_%02d%02d%02d.dmp",
st.wYear,
st.wMonth,
st.wDay,
st.wHour,
st.wMinute,
st.wSecond);
HANDLE hD...
What's the opposite of chr() in Ruby?
... pair of functions, chr() and ord() , which convert between numbers and character values. In some languages, ord() is called asc() .
...
SQL Server: SELECT only the rows with MAX(DATE)
...
If rownumber() over(...) is available for you ....
select OrderNO,
PartCode,
Quantity
from (select OrderNO,
PartCode,
Quantity,
row_number() over(partition by OrderNO order by DateEntered desc) as rn
from YourTable) a...
Oracle query to fetch column names
...r case, I'd imagine the query would look something like:
String sqlStr= "
SELECT column_name
FROM all_tab_cols
WHERE table_name = 'USERS'
AND owner = '" +_db+ "'
AND column_name NOT IN ( 'PASSWORD', 'VERSION', 'ID' )"
Note that with this approach, you risk SQL injection.
EDIT: Uppercase...
Creating a new directory in C
...ng a gnu extension to print the error message with printf.
void rek_mkdir(char *path) {
char *sep = strrchr(path, '/');
if(sep != NULL) {
*sep = 0;
rek_mkdir(path);
*sep = '/';
}
if(mkdir(path, 0777) && errno != EEXIST)
printf("error while try...
How does grep run so fast?
... how far ahead it can skip in the input whenever it finds a
non-matching character.
GNU grep also unrolls the inner loop of Boyer-Moore, and sets up the
Boyer-Moore delta table entries in such a way that it doesn't need to
do the loop exit test at every unrolled step. The result of this ...
Start thread with member function
...t;< "i am member1" << std::endl;
}
void member2(const char *arg1, unsigned arg2) {
std::cout << "i am member2 and my first arg is (" << arg1 << ") and second arg is (" << arg2 << ")" << std::endl;
}
std::thread member1Thr...
In-Place Radix Sort
...though.
Btw: If you're dealing with DNA strings only: You can compress a char into two bits and pack your data quite a lot. This will cut down the memory requirement by factor four over a naiive representation. Addressing becomes more complex, but the ALU of your CPU has lots of time to spend duri...
How do I open links in Visual Studio in my web browser and not in Visual Studio?
...swer.
Sub OpenURLInChrome()
'copy to end of line
DTE.ActiveDocument.Selection.EndOfLine(True)
'set var
Dim url As String = DTE.ActiveDocument.Selection.Text
'launch chrome with url
System.Diagnostics.Process.Start( _
Environment.GetFolderPath(Environment.SpecialFolder.Local...