大约有 15,000 项符合查询结果（耗时：0.0312秒） [XML]
Why is it impossible to build a compiler that can determine if a C++ function will change the value
...an unknown source (eg. the user). This is true of all languages, not just C++.
The latter statement, however, can be determined by looking at the parse tree, which is something that all optimizing compilers do. The reason they do is that pure functions (and referentially transparent functions, fo...
Failed to load c++ bson extension
...../build/Release/bson'] code: 'MODULE_NOT_FOUND' } js-bson: Failed to load c++ bson extension, using pure JS version { [Error: Cannot find module '../build/Release/bson'] code: 'MODULE_NOT_FOUND' } js-bson: Failed to load c++ bson extension, using pure JS version Connected correctly to server
...
C++ const map element access
I tried to use the operator[] access the element in a const C++ map, but this method failed. I also tried to use "at()" to do the same thing. It worked this time. However, I could not find any reference about using "at()" to access element in a const C++ map. Is "at()" a newly added function in C++ ...
Why does this C++ snippet compile (non-void function does not return a value) [duplicate]
...
This is undefined behavior from the C++11 draft standard section 6.6.3 The return statement paragraph 2 which says:
[...] Flowing off the end of a function is equivalent to a return with no value; this results in undefined behavior in a value-returning func...
Can we have functions inside functions in C++?
...
Modern C++ - Yes with lambdas!
In current versions of c++ (C++11, C++14, and C++17), you can have functions inside functions in the form of a lambda:
int main() {
// This declares a lambda, which can be called just like a func...
How do I concatenate multiple C++ strings on one line?
...
ss << "Wow, string concatenation in C++ is impressive" << "or not."
– joaerl
Jan 24 '14 at 9:21
4
...
How to stop C++ console application from exiting immediately?
Lately, I've been trying to learn C++ from this website . Unfortunately whenever I try to run one of the code samples, I see that program open for about a half second and then immediately close. Is there a way to stop the program from closing immediately so that I can see the fruits of my effort?
...
What characters are valid for JavaScript variable names?
....
The rest of the string can contain the same characters, plus any U+200C zero width non-joiner characters, U+200D zero width joiner characters, and characters in the Unicode categories “Non-spacing mark (Mn)”, “Spacing combining mark (Mc)”, “Decimal digit number (Nd)”, or “Connec...
Is Fortran easier to optimize than C for heavy calculations?
...d to the C99 standard to address this problem. It's well supported in most C++ compilers these days as well. The keyword allows you to give the compiler a hint that the programmer promises that a pointer does not alias with any other pointer. The strict-aliasing means that the programmer promises th...
Should I use PATCH or PUT in my REST API?
...a DELETE: If that fails, the client can simply retry, until it gets a 404, 200 or anything else it can handle. But if it triggers a POST to deactivation it knows not to retry: the POST implies this.
Any client now has a contract, which, when followed, will protect against sending out 42 emails "your...