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What's the difference(s) between .ToList(), .AsEnumerable(), AsQueryable()?
...al joins where a certain Column that is calculated on the view for example concat(t1.colA, t2.colB, t2.colC) as MyVeryNeetColumn (i know its a stupid example, but could be anything). When you do a Where on that column in it will have horrible times because the db needs to calculate all vals to perfo...
Why isn't vector a STL container?
...l directly. Workarounds to
avoid this range from using a different type (char, unsigned char) or
container (like deque) to use wrapper types or further specialize for
specific allocator types.
bitset is a class that provides a similar functionality for fixed-size
arrays of bits.
...
How to exclude this / current / dot folder from find “type d”
...his particular case (.), golfs better than the mindepth solution (24 vs 26 chars), although this is probably slightly harder to type because of the !.
To exclude other directories, this will golf less well and requires a variable for DRYness:
D="long_name"
find "$D" ! -path "$D" -type d
My decis...
Get an OutputStream into a String
...tring constructor, the codepage can be a String or an instance of java.nio.charset.Charset. A possible value is java.nio.charset.StandardCharsets.UTF_8.
The method toString() accepts only a String as a codepage parameter (stand Java 8).
...
Left-pad printf with spaces
...
If you want the word "Hello" to print in a column that's 40 characters wide, with spaces padding the left, use the following.
char *ptr = "Hello";
printf("%40s\n", ptr);
That will give you 35 spaces, then the word "Hello". This is how you format stuff when you know how wide you wa...
Is modern C++ becoming more prevalent? [closed]
...p; Moo's Accelerated C++ and Stroustrup's new textbook. So we don't learn char* then std::strings.
It's an interesting lesson in how long it takes for "legacy" methods to be replaced, especially when they have a track record of effectiveness.
...
Measuring execution time of a function in C++
...ypedef std::string String;
//first test function doing something
int countCharInString(String s, char delim){
int count=0;
String::size_type pos = s.find_first_of(delim);
while ((pos = s.find_first_of(delim, pos)) != String::npos){
count++;pos++;
}
return count;
}
//sec...
Difference between decimal, float and double in .NET?
... | | | with 28 or 29 significant figures |
| char | System.Char | N/A | 2 | Any Unicode character (16 bit) |
| bool | System.Boolean | N/A | 1 / 2 | true or false |
+---------+----------------+-------...
“Undefined reference to” template class constructor [duplicate]
...e in order to ensure this problem never happens! (cola<int>, cola<char>, cola<ostream>, cola< cola<int> > ... and so on ...)
The two answers are:
Tell the compiler, at the end of cola.cpp, which particular template classes will be required, forcing it to compile cola...
Vim multiline editing like in sublimetext?
...d;
asd "asd asd asd asd;
asd "asd asd asd asd;
Put the cursor on the last char of the third word:
asd "asd as|d| asd asd;
asd "asd asd asd asd;
asd "asd asd asd asd;
asd "asd asd asd asd;
asd "asd asd asd asd;
asd "asd asd asd asd;
asd "asd asd asd asd;
Hit <C-v> to enter visual-block mode ...