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What's the difference between a single precision and double precision floating point operation?
...as the greater data precision available with 64-bit data types is not typically required by 3D games, as well as the fact that processing 64-bit data uses twice as much RAM, cache, and bandwidth, thereby reducing the overall system performance.
From Webopedia:
The term double precision is some...
how to install gcc on windows 7 machine?
I have MinGW on my windows 7 machine. I wish to install and use complete gcc for C compiler. I found there is no single pre-compiled ready-made installation file for this purpose. I checked the following page : http://gcc.gnu.org/install/
It is difficult and I find it above my level of understandi...
Convert a positive number to negative in C#
...itive ones negative.
This approach has a single flaw. It doesn't work for all integers. The range of Int32 type is from "-231" to "231 - 1." It means there's one more "negative" number. Consequently, Math.Abs(int.MinValue) throws an OverflowException.
The correct way is to use conditional stateme...
Using Laravel Homestead: 'no input file specified'
...
Instead of reinstalling try
vagrant up --provision
or
homestead up --provision
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Windows git “warning: LF will be replaced by CRLF”, is that warning tail backward?
...E_CRLF_FAIL */
die("LF would be replaced by CRLF in %s", path);
It is called by convert.c#crlf_to_git(), itself called by convert.c#convert_to_git(), itself called by convert.c#renormalize_buffer().
And that last renormalize_buffer() is only called by merge-recursive.c#blob_unchanged().
So I s...
How to remove spaces from a string using JavaScript?
...s is the regex for "whitespace", and g is the "global" flag, meaning match ALL \s (whitespaces).
A great explanation for + can be found here.
As a side note, you could replace the content between the single quotes to anything you want, so you can replace whitespace with any other string.
...
Ruby off the rails
... the huge benefits of Ruby is the ability to create DSLs very easily. Ruby allows you to create "business rules" in a natural language way that is usually easy enough for a business analyst to use. Many Ruby apps outside of web development exist for this purpose.
I highly recommend Googling "ruby ...
What do two question marks together mean in C#?
...e following statement will assign the first non-null Answer# to Answer (if all Answers are null then the Answer is null):
string Answer = Answer1 ?? Answer2 ?? Answer3 ?? Answer4;
Also it's worth mentioning while the expansion above is conceptually equivalent, the result of each expression is o...
libcurl的使用总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...了source
2.编译。解压后进入curl的目录，直接执行 make all 就行。
3.等待编译结束后，可以查看目录结构。
curl/include/curl ： 头文件目录 （一般只要包含curl.h即可）
curl/lib/.lib/ ： lib文件目录（有libcurl.a和li...
Difference between
...ts, what type of object could you add to List foo3 that would be legal for all the above possible ArrayList assignments:
You can't add an Integer because foo3 could be pointing at a List<Double>.
You can't add a Double because foo3 could be pointing at a List<Integer>.
You can't add a ...