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C++ - passing references to std::shared_ptr or boost::shared_ptr
...hat"
Update: Herb has expanded on this here: http://herbsutter.com/2013/06/05/gotw-91-solution-smart-pointer-parameters/, although the moral of the story is that you shouldn't be passing shared_ptrs at all "unless you want to use or manipulate the smart pointer itself, such as to share or transfer o...
Why do I need 'b' to encode a string with Base64?
...1 110100 (base-64 grouping shown)
base-10: 1952805748
base-64: B 0 Z X N 0
base64 encoding, however, will re-group this data thusly:
base-2: 011101 000110 010101 110011 011101 00(0000) <- pad w/zeros to make a clean 6-bit chunk
base-10: ...
Hidden Features of PHP? [closed]
...
@Peter VERY useful for db->localhost exception error handling.
– Talvi Watia
Jan 29 '10 at 11:30
...
How to identify whether a file is normal file or directory
... a set of directories you might be better just to try os.chdir and give an error/warning if it fails:
import os,sys
for DirName in sys.argv[1:]:
SaveDir = os.getcwd()
try:
os.chdir(DirName)
print "Changed to "+DirName
# Do some stuff here in the directory
os....
In Python, what happens when you import inside of a function? [duplicate]
...eeded at all in a given run of the program, e.g., that function deals with errors, anomalies, and rare situations in general; if that's the case, any run that does not need the functionality will not even perform the import (and that's a saving of microseconds, not just nanoseconds), only runs that ...
Real world use of JMS/message queues? [closed]
...erting. Again, a similar setup to the above logging, watching for specific errors, and alerting people via various means (email, text message, IM, Growl pop-up...)
Dynamically configuring and controlling software clusters. Each app server would broadcast a "configure me" message, then a configurati...
Read/write to Windows registry using Java
...
– Thorbjørn Ravn Andersen
Nov 8 '13 at 12:05
11
This code might no longer work in Java 9 because it gen...
How to get hex color value rather than RGB value?
...olor');
Only I.E (only 6 tested so far) returns the Hex value.
To avoid error messages in I.E, you could wrap the function in an if statement:
function rgb2hex(rgb) {
if ( rgb.search("rgb") == -1 ) {
return rgb;
} else {
rgb = rgb.match(/^rgba?\((\d+),\s*(\d+),\s*(...
Jasmine JavaScript Testing - toBe vs toEqual
... special handling for built in objects like String, Number, Boolean, Date, Error, Element and RegExp. For other objects it recursively compares properties.
This is very different from the behavior of the equality operator, ==. For example:
var simpleObject = {foo: 'bar'};
expect(simpleObject).toEq...
How to create nonexistent subdirectories recursively using Bash?
...
You can use the -p parameter, which is documented as:
-p, --parents
no error if existing, make parent directories as needed
So:
mkdir -p "$BACKUP_DIR/$client/$year/$month/$day"
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