大约有 4,041 项符合查询结果（耗时：0.0298秒） [XML]
Why does string::compare return an int?
...ntegral
promotion, so there's no point in returning anything smaller.
In C++ (as in C), every expression is either an rvalue or an
lvalue. Historically, the terms refer to the fact that lvalues
appear on the left of an assignment, where as rvalues can only
appear on the right. Today, a simple ap...
Why is the asterisk before the variable name, rather than after the type?
...
float an_element = my_array[2];
and: int copy_of_value = *myVariable;.
C++ throws a spanner in the works with references, because the syntax at the point where you use references is identical to that of value types, so you could argue that C++ takes a different approach to C. On the other hand, ...
error: use of deleted function
I've been working on some C++ code that a friend has written and I get the following error that I have never seen before when compiling with gcc4.6:
...
Is it possible to print a variable's type in standard C++?
...
C++11 update to a very old question: Print variable type in C++.
The accepted (and good) answer is to use typeid(a).name(), where a is a variable name.
Now in C++11 we have decltype(x), which can turn an expression into a t...
What is the purpose of using -pedantic in GCC/G++ compiler?
...your program if this is at all possible. However, in some
cases, the C and C++ standards specify that certain extensions are forbidden. Conforming compilers
such as gcc or g++ must issue a diagnostic when these extensions are encountered. For example,
the gcc compiler’s -pedantic option causes gcc...
How to change the default GCC compiler in Ubuntu?
... /usr/bin/cc cc /usr/bin/gcc-4.8 \
--slave /usr/bin/c++ c++ /usr/bin/g++-4.8 \
--slave /usr/bin/g++ g++ /usr/bin/g++-4.8 \
--slave /usr/bin/gcov gcov /usr/bin/gcov-4.8 \
--slave /usr/bin/gcov-dump gcov-dump /usr...
When do we have to use copy constructors?
I know that C++ compiler creates a copy constructor for a class. In which case do we have to write a user-defined copy constructor? Can you give some examples?
...
Writing your own STL Container
...
You will need to read the C++ Standard section about Containers and requirements the C++ Standard imposes for container implementations.
The relevant chapter in C++03 standard is:
Section 23.1 Container Requirements
The relevant chapter in C++11 ...
Why should I care that Java doesn't have reified generics?
...ld be abstracted into an interface, which could be somewhat implemented in C++ using template specialization.)
– JAB
Jan 8 '14 at 19:00
...
boost::filesystem指南 - C/C++ - 清泛网 - 专注C/C++及内核技术
...有深入学习，当然我个人水平也不敢说“深入”二字。
C++程序一直有一个方面不能做可移植性，尽管标准库有几个函数用于操作与文件系统相关的任务，但是这几个函数作用相对我们日常对文件系统操作的需求来说真是杯水车...