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Vertical (rotated) label in Android
... super(context, attrs);
final int gravity = getGravity();
if(Gravity.isVertical(gravity) && (gravity&Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) {
setGravity((gravity&Gravity.HORIZONTAL_GRAVITY_MASK) | Gravity.TOP);
topDown = false;
}els...
Stack vs heap allocation of structs in Go, and how they relate to garbage collection
...of the struct. Compare the assembly output of myFunction1 and myFunction2 now,
--- prog list "myFunction1" ---
0000 (s.go:5) TEXT myFunction1+0(SB),$16-24
0001 (s.go:6) MOVQ $type."".MyStructType+0(SB),(SP)
0002 (s.go:6) CALL ,runtime.new+0(SB)
0003 (s.go:6) MOVQ 8(SP),AX
0004 (s.go:8)...
Best way to store time (hh:mm) in a database
...times in a database table but only need to store the hours and minutes.
I know I could just use DATETIME and ignore the other components of the date, but what's the best way to do this without storing more info than I actually need?
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Why declare a struct that only contains an array in C?
...nst-reference, unless the callee already needs a tmp copy it can destroy. If the call / return don't optimize away, a medium to large array (thousands of bytes) is a terrible thing to pass by value.
– Peter Cordes
Jun 11 '18 at 16:49
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Where does the .gitignore file belong?
...
Put .gitignore in the working directory. It doesn't work if you put it in the .git (repository) directory.
$ ls -1d .git*
.git
.gitignore
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get path for my .exe [duplicate]
how can I get my .exe path because if I copy my .exe I can get my new path ?
4 Answers
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CMap用法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...; //把str1覆盖了
//查找（方法一：Lookup）
CString str;
if (map.Lookup(1, str))
{
printf("find:%s\n", str);
}
//查找（方法二：PLookup）
CMapInt::CPair* pPair = map.PLookup(1);
if (pPair)
{
printf("find:%s\n", pPair->value);
}
//遍历
CMapInt::C...
c++读注册表 - C/C++ - 清泛网 - 专注C/C++及内核技术
...xx"));
HKEY hKey;
LONG rc = RegOpenKey(HKEY_LOCAL_MACHINE, key, &hKey);
if (ERROR_SUCCESS == rc)
{
WCHAR szBuffer[MAX_PATH];
DWORD dwBufferSize = sizeof(szBuffer);
rc = RegQueryValueEx(hKey, _T("Path"), NULL, NULL, (LPBYTE)szBuffer, &dwBufferSize);
if (ERROR_S...
MFC OnKeyDown没反应，不响应键盘操作 - C/C++ - 清泛网 - 专注C/C++及内核技术
...G* pMsg);
...
BOOL CxxxDlg::PreTranslateMessage(MSG* pMsg)
{
if (pMsg->message == WM_KEYDOWN)
{
if (pMsg->wParam == VK_CONTROL)
{
AfxMessageBox(_T("Ctrl pressed!"));
}
}
return __...
NSIS做的安装程序，可接受命令行参数，实现静默安装，静默卸载 - 更多技术 ...
...stparameter used in the command line and must not contain any quotes, even if the path contains spaces. Only absolute paths are supported.
3.2.2 Uninstaller Specific Options
_?= sets $INSTDIR. It also stops the uninstaller from copying itself to the temporary directory and running from there. ...