大约有 23,000 项符合查询结果（耗时：0.0331秒） [XML]
Is gettimeofday() guaranteed to be of microsecond resolution?
...eofday() is 10us. It can jump forward and backward and time, consequently, based on the processes running on your system. This effectively makes the answer to your question no.
You should look into clock_gettime(CLOCK_MONOTONIC) for timing intervals. It suffers from several less issues due to thing...
How to set or change the default Java (JDK) version on OS X?
...
A small fish function based on /usr/libexec/java_home
function jhome
set JAVA_HOME (/usr/libexec/java_home $argv)
echo "JAVA_HOME:" $JAVA_HOME
echo "java -version:"
java -version
end
If you don't use fish, you can do something s...
What does the C++ standard state the size of int, long type to be?
...c C++ types.
I know that it depends on the architecture (16 bits, 32 bits, 64 bits) and the compiler.
24 Answers
...
is vs typeof
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
Markup XML解析库下载（Markup.h 和 Markup.cpp） - 源码下载 - 清泛网 - 专注C/C++及内核技术
...// MARKUP_STDCONV to use neither WINCONV or ICONV, falls back to setlocale based conversion for ANSI
//
#if _MSC_VER > 1000 // VC++
#pragma once
#if ! defined(MARKUP_SAFESTR) // not VC++ safe strings
#pragma warning(disable:4996) // VC++ 2005 deprecated function warnings
#endif // not VC++ saf...
Check if user is using IE
...like Gecko
Default string of Edge 12:
Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.71 Safari/537.36 Edge/12.0
Default string of Edge 13 (thx @DrCord):
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0....
Java NIO FileChannel versus FileOutputstream performance / usefulness
...e that I am testing with is around 350MB . Is it a good option to use NIO based classes for File I/O, if I am not looking at random access or other such advanced features?
...
What are the differences between .so and .dylib on osx?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
What is BSON and exactly how is it different from JSON?
...documents as bson what is the type that is returned when we query the data base?Are they returned as json?Or bson is returned as it is?
– Akshat Jiwan Sharma
Sep 15 '12 at 14:57
13...
Can't install Ruby under Lion with RVM – GCC issues
... Store
I kept getting errors like :
The provided CC(/usr/bin/gcc) is LLVM based.
bash-3.2$ rvm install 1.9.3
ERROR: The provided CC(/usr/bin/gcc) is LLVM based, it is not yet fully supported by ruby and gems, please read `rvm requirements`.
After 2 days finally got it working with these two lin...