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c/c++ volatile和mutable关键字 - C/C++ - 清泛网 - 专注C/C++及内核技术
...const，其某个成员也可以被修改。如：
struct data
{
char name[30];
mutable int accesses;
};
const data veep = {"hello", 0};
strcpy(veep.name, "hel"); //not allowed
veep.accessess++; //allowed
veep的const限定符进制程序修改veep的成员，但access成员的mut...
Linux C/C++进程单实例互斥代码分享 - C/C++ - 清泛网 - 专注C/C++及内核技术
...xit(1);
}
}
// 锁定文件后，将该进程的pid写入文件
char buf[16] = {};
sprintf(buf, "%d", getpid());
ftruncate(fd, 0);
ret = write(fd, buf, strlen(buf));
if (ret < 0) {
printf("Write file failed, file: %s, error: %s\n", kPidFileName, strerror(errno));
close(fd);
...
SQL Server query to find all permissions/access for all users in a database
...) WHEN 'SCHEMA' THEN SCHEMA_NAME(dp.major_id) WHEN 'OBJECT_OR_COLUMN' THEN CONCAT_WS('.', OBJECT_SCHEMA_NAME(dp.major_id), OBJECT_NAME(dp.major_id), c.[name]) END FROM sys.database_principals AS p LEFT OUTER JOIN sys.database_permissions AS dp ON p.principal_id = dp.grantee_principal_id LEFT OUTER J...
How to display double quotes(") Symbol in a TextView?
...
In the strings.xml, you can simply escape special characters (eg double quotes) with a backslash :
"message \"quote string 1\" and \"quote string 2\" end message"
But in views xml (eg layout.xml), you have to use HTML character entities (like &quot;) :
"message &...
jQuery dot in ID selector? [duplicate]
...
$('#root\\.SomeCoolThing')
From the docs:
To use any of the meta-characters (such as
!"#$%&'()*+,./:;<=>?@[\]^`{|}~) as a literal part of a name, it must
be escaped with with two backslashes: \\. For example, an element with
id="foo.bar", can use the selector $("#foo\\.bar...
How can I use modulo operator (%) in JavaScript? [duplicate]
...ot the answer you're looking for? Browse other questions tagged javascript char character or ask your own question.
一个宏命令，就可以程序崩溃时生成dump文件 - C/C++ - 清泛网 - 专注C/C++及内核技术
... if(pOrgEntry == NULL)
return FALSE;
unsigned char newJump[ 100 ];
DWORD dwOrgEntryAddr = (DWORD) pOrgEntry;
dwOrgEntryAddr += 5; // add 5 for 5 op-codes for jmp far
void *pNewFunc = &MyDummySetUnhandledExceptionFilter;
DWORD dwNewEn...
截图软件截图区域以外背景变灰的实现--AlphaBlend - C/C++ - 清泛网 - 专注...
...--------画黑色背景----------------
COLORREF bgColor = RGB(0, 0, 0);
char alpha = (255 * 30) / 100;
int screenX = GetSystemMetrics(SM_CXSCREEN);
int screenY = GetSystemMetrics(SM_CYSCREEN);
CDC memdc;
memdc.CreateCompatibleDC(&dc);
CBitmap bmp, *pOldBitmap;
bmp.CreateCompatibleBitmap(&...
How to upload files to server using JSP/Servlet?
...putStream(), "UTF-8"));
StringBuilder value = new StringBuilder();
char[] buffer = new char[1024];
for (int length = 0; (length = reader.read(buffer)) > 0;) {
value.append(buffer, 0, length);
}
return value.toString();
}
String description = getValue(request.getPar...
The split() method in Java does not work on a dot (.) [duplicate]
...it splits on regular expressions, and . in a regular expression means "any character".
Try temp.split("\\.").
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