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Will using goto leak variables?
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Warning: This answer pertains to C++ only; the rules are quite different in C.
Won't x be leaked?
No, absolutely not.
It is a myth that goto is some low-level construct that allows you to override C++'s built-in scoping mechanisms. (If anything, it'...
How are virtual functions and vtable implemented?
We all know what virtual functions are in C++, but how are they implemented at a deep level?
12 Answers
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各编程语言读写文件汇总 - C/C++ - 清泛网 - 专注C/C++及内核技术
...ets、fputs文本读写
3.2、fread、fwrite二进制读写
四、C++
五、Java
PHP读写文件：
// 写文件
$fp = fopen("log.txt", "a");
fwrite($fp, $str);
fclose($fp);
// 读文件
$fp = fopen("log.txt", "r");
while(!feof($fp)) {
$line = fgets($fp);
echo $line;
}
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Do the parentheses after the type name make a difference with new?
...ns POD members and is using a compiler-generated default constructor.
In C++1998 there are 2 types of initialization: zero and default
In C++2003 a 3rd type of initialization, value initialization was added.
Assume:
struct A { int m; }; // POD
struct B { ~B(); int m; }; // non-POD, compiler gen...
Is it safe to use -1 to set all bits to true?
I've seen this pattern used a lot in C & C++.
20 Answers
20
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How does libuv compare to Boost/ASIO?
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Scope
Boost.Asio is a C++ library that started with a focus on networking, but its asynchronous I/O capabilities have been extended to other resources. Additionally, with Boost.Asio being part of the Boost libraries, its scope is slightly narrowe...
CFLAGS vs CPPFLAGS
I understand that CFLAGS (or CXXFLAGS for C++) are for the compiler, whereas CPPFLAGS is used by the preprocessor.
4 Answer...
How do I explicitly instantiate a template function?
...You can tell the compiler to explicitly instantiate templates. Google for "C++ explicit template instantiation" for more details.
– hrnt
Feb 8 '11 at 12:56
8
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Red black tree over avl tree
...ree is used in the following:
Java: java.util.TreeMap, java.util.TreeSet
C++ STL (in most implementations): map, multimap, multiset
Linux kernel: completely fair scheduler, linux/rbtree.h
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Is Haxe worth learning? [closed]
...ou define classes/interfaces/enums/typedefs in the same way for JS, Flash, C++, etc. If those types you define do not depend on a specific platform API, they can be reused from platform to platform with no effort at all. All the platforms also share common APIs like XML access, HTTP connections and ...