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Efficient way to return a std::vector in c++
...
vector<string> getseq(char * db_file)
And if you want to print it on main() you should do it in a loop.
int main() {
vector<string> str_vec = getseq(argv[1]);
for(vector<string>::iterator it = str_vec.begin(); it != str_vec.end(); i...
Image fingerprint to compare similarity of many images
... image to a minutiae map is what actually most of Public Authorities do to file criminals or terrorists.
See here for further references
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How to properly seed random number generator
... string, and that causes the 0 to become a null byte. E.g., try creating a file with a '0' byte in the middle and see what happens.
– Eric Lagergren
Jun 27 '15 at 22:40
add a ...
swift case falling through
... break statements, but cases are a lot more flexible.
Addendum: As Analog File points out, there actually are break statements in Swift. They're still available for use in loops, though unnecessary in switch statements, unless you need to fill an otherwise empty case, as empty cases are not allowe...
Salting Your Password: Best Practices?
...g the hash calculation.
It could then be cheaper to brute-force a password file entry with postfix salt than prefix salt: for each dictionary word in turn you would load the state, add the salt bytes into the hash, and then finalise it. With prefixed salt there would be nothing in common between the...
How to capture the “virtual keyboard show/hide” event in Android?
...hange the visibility of some views, update a field, and change your layout file.
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Android gradle: buildtoolsVersion vs compileSdkVersion
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Just to be clear, in AS 3.2 the path to the above is "File=>Settings=>Appearance & Behavor ...."
– JL_SO
Oct 28 '18 at 15:03
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Difference between break and continue statement
...tisfies a certain condition. Or looping over a stream of characters from a file until a certain character is read.
In the following example, we’re using a simple for loop to print out values from 0 to 9:
for(int i=0; i<10; i++) {
System.out.println(i);
}
Output:
0
1
2
3
4
5
6
7
8
9
Now...
Colorize console output in Intellij products
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A recent version of the config file for GrepConsole is available in my dotfiles. You can copy or symlink it to $HOME/.IdeaIC12/config/options/GrepConsole.xml.
– JJD
Sep 24 '13 at 12:32
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Build tree array from flat array in javascript
I have a complex json file that I have to handle with javascript to make it hierarchical, in order to later build a tree.
Every entry of the json has :
id : a unique id,
parentId : the id of the parent node (which is 0 if the node is a root of the tree)
level : the level of depth in the tree
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