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Efficiency of premature return in a function
...If the simple example above is extended with resource allocation, and then error checking with a potential resulting freeing of resources, the picture might change.
Consider the naive approach beginners might take:
int func(..some parameters...) {
res_a a = allocate_resource_a();
if (!a) {
...
How to print to stderr in Python?
... when I'm trying to debug something. (I'd rather not introduce new syntax errors!) :-)
– Dan H
Nov 20 '14 at 14:49
33
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How can I catch all the exceptions that will be thrown through reading and writing a file?
...ever, this doesn't take into consideration the fact that IO can also throw Errors. Errors are not Exceptions. Errors are a under a different inheritance hierarchy than Exceptions, though both share the base class Throwable. Since IO can throw Errors, you may want to go so far as to catch Throwable
...
Adding VirtualHost fails: Access Forbidden Error 403 (XAMPP) (Windows 7)
.../Documenten/Dropbox/Dropbox/dummy-htdocs"
ServerName dropbox.local
ErrorLog "logs/dropbox.local-error.log"
CustomLog "logs/dropbox.local-access.log" combined
<Directory "E:/Documenten/Dropbox/Dropbox/dummy-htdocs">
# AllowOverride All # Deprecated
# Order A...
Sublime Text 2: How to delete blank/empty lines
...answered Oct 16 '17 at 22:40
rsc05rsc05
2,02322 gold badges1818 silver badges3737 bronze badges
...
how can I add the aidl file to Android studio (from the in-app billing example)
...
Just as the error message says, you need to put IInAppBillingService.aidl in the correct directory dictated by it's package (com.android.vending.billing).
Within the src/main/aidl/ folder you already have, put the .aidl file in com/andr...
Custom Compiler Warnings
...rated with the Obsolete
attribute, the compiler issues a
warning or an error. Specifically, the
compiler issues a warning if no error
parameter is provided, or if the error
parameter is provided and has the
value false. The compiler issues an
error if the error parameter is
specified...
How do I create an abstract base class in JavaScript?
...imal = function() {
if (this.constructor === Animal) {
throw new Error("Can't instantiate abstract class!");
}
// Animal initialization...
};
/**
@abstract
*/
Animal.prototype.say = function() {
throw new Error("Abstract method!");
}
The Animal "class" and the say method a...
iTerm 2: How to set keyboard shortcuts to jump to beginning/end of line?
... SEND
⌘← "SEND HEX CODE" 0x01
⌘→ "SEND HEX CODE" 0x05
⌥← "SEND ESC SEQ" b
⌥→ "SEND ESC SEQ" f
Here is a visual for those who need it
share
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How to log something in Rails in an independent log file?
...initializer:
MultiLogger.add_logger('post')
and call
Rails.logger.post.error('hi')
# or call logger.post.error('hi') if it is accessible.
and you are done.
If you want to code it yourself, see below:
A more complete solution would be to place the following in your lib/ or config/initialize...