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ifstream 线程安全读文件 - C/C++ - 清泛网 - 专注C/C++及内核技术
...件函数 safeGetline：std::istream& safeGetline(std::istream& is, std::string& t){ t clear(); 使用std::streambuf 函数 safeGetline：
std::istream& safeGetline(std::istream& is, std::string& t)
{
t.clear();
//这比使用std::istream逐个读取它们要快。
//以...
Suppress warning messages using mysql from within Terminal, but password written in bash script
...
I use something like:
mysql --defaults-extra-file=/path/to/config.cnf
or
mysqldump --defaults-extra-file=/path/to/config.cnf
Where config.cnf contains:
[client]
user = "whatever"
password = "whatever"
host = "whatever"
This allows you to have multiple config f...
Java Timestamp - How can I create a Timestamp with the date 23/09/2007?
...w Timestamp(time); giving error that no constructor like this which take a string value :(
– Bhanu Sharma
May 14 '14 at 13:02
...
What is the difference between old style and new style classes in Python?
...I can see of the new-style classes. There is a disadvantage, which is the extra typing of (object).
– recursive
May 3 '11 at 12:45
...
C++ Best way to get integer division and remainder
...and the struct access is optimized away) is a bigger penalty than doing an extra division instruction.
– pezcode
Aug 15 '11 at 20:42
...
SQL ON DELETE CASCADE, Which Way Does the Deletion Occur?
...ould restructure your schema into this,
CREATE TABLE Categories
(
Code CHAR(4) NOT NULL PRIMARY KEY,
CategoryName VARCHAR(63) NOT NULL UNIQUE
);
CREATE TABLE Courses
(
CourseID INT NOT NULL PRIMARY KEY,
BookID INT NOT NULL,
CatCode CHAR(4) NOT NULL,
CourseNum CHAR(3) NOT NULL,
Cour...
Cannot create an NSPersistentStoreCoordinator with a nil model
...
This specific issue is caused by creating an extra model version and then attempting to delete it manually while Xcode is open. This causes some kind of corruption. You should not be passing in specific model versions in the momd directory.
– Mike ...
Difference between Hashing a Password and Encrypting it
...sible, you apply the secure hash algorithm and you cannot get the original string back. The most you can do is to generate what's called "a collision", that is, finding a different string that provides the same hash. Cryptographically secure hash algorithms are designed to prevent the occurrence of ...
Android Replace “…” with ellipsis character
...
@TusharPandey- if your code is <string name="searching">Searching...</string> then it will look something like <string name="searching">Searching&#x2026</string>
– Jadeye
Apr 18 '15 at 20:33
...
What is Python buffer type for?
...00634ab0>
>>> print t
world
The buffer in this case is a sub-string, starting at position 6 with length 5, and it doesn't take extra storage space - it references a slice of the string.
This isn't very useful for short strings like this, but it can be necessary when using large amount...