大约有 12,000 项符合查询结果（耗时：0.0229秒） [XML]
Does anyone have benchmarks (code & results) comparing performance of Android apps written in Xamari
... multipe forms to execute code in:
RenderScript (CPU and GPU)
Java (SDK)
C++ (NDK)
OpenGL (GPU)
It is quite obvious that when executing code the more native the solution the faster it will be. A run-time based language will never beat a language that directly runs on the CPU.
But on the other h...
Why is there no multiple inheritance in Java, but implementing multiple interfaces is allowed?
...
I used to do C++ and ran into that exact same issue quite a few times. I recently read about Scala having "traits" that to me seem like something in between the "C++" way and the "Java" way of doing things.
– Niels B...
Is it possible to serialize and deserialize a class in C++?
Is it possible to serialize and deserialize a class in C++?
13 Answers
13
...
Stack Memory vs Heap Memory [duplicate]
I am programming in C++ and I am always wondering what exactly is stack memory vs heap memory. All I know is when I call new, I would get memory from heap. If if create local variables, I would get memory from stack. After some research on internet, the most common answer is stack memory is temporar...
std::wstring VS std::string
...hey are encoded in UTF-8.
Is std::wstring supported by almost all popular C++ compilers?
Mostly, with the exception of GCC based compilers that are ported to Windows.
It works on my g++ 4.3.2 (under Linux), and I used Unicode API on Win32 since Visual C++ 6.
What is exactly a wide character?
On C...
How did I get a value larger than 8 bits in size from an 8-bit integer?
...extremely nasty bug hiding behind this little gem. I am aware that per the C++ spec, signed overflows are undefined behavior, but only when the overflow occurs when the value is extended to bit-width sizeof(int) . As I understand it, incrementing a char shouldn't ever be undefined behavior as lon...
How can I profile C++ code running on Linux?
I have a C++ application, running on Linux, which I'm in the process of optimizing. How can I pinpoint which areas of my code are running slowly?
...
Why does auto a=1; compile in C?
...gned d; // actually unsigned int
which is still common in modern code.
C++11 reused the keyword, which few if any C++ programmers were using with the original meaning, for its type inference. This is mostly safe because the "everything is int" rule from C had already been dropped in C++98; the o...
Run an Application in GDB Until an Exception Occurs
...to cause the debugger to stop for certain kinds of program events, such as C++ exceptions or the loading of a shared library. Use the catch command to set a catchpoint.
catch event
Stop when event occurs. event can be any of the following:
throw
The throwing of a C++ exception.
catch
...
“Unresolved inclusion” error with Eclipse CDT for C standard library headers
...in several sections for the compiler:
Adding include paths and symbols
C/C++ Project Properties, Paths and Symbols, Includes
And if the code-completion/indexer or preprocessor specifically also cannot locate stdio.h:
Setting up include paths and macros for C/C++ indexer
C/C++ Project propertie...