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An example of how to use getopts in bash
... local REQUIRED=$(get_required "${OPT_DESC}" | sed -e "s/\://g")
while test -n "${REQUIRED}"; do
OPTION=${REQUIRED:0:1}
VARNAME=$(get_variable_name_for_option "${OPT_DESC}" "${OPTION}")
[ -z "${!VARNAME}" ] && printf "ERROR: %s\n" "Option -${OPTION} must b...
Pointers vs. values in parameters and return values
...NewTLSServer(handler http.Handler) *Server -- instantiate a web server for testing
func Open(name string) (*File, error) -- return a file access handle
In other cases, pointers are returned just because the structure may be too large to copy by default:
func NewRGBA(r Rectangle) *RGBA -- allocat...
How to generate a random number in C++?
...
The most fundamental problem of your test application is that you call srand once and then call rand one time and exit.
The whole point of srand function is to initialize the sequence of pseudo-random numbers with a random seed.
It means that if you pass the sam...
angular.service vs angular.factory
...trollers creates hard-to-track dependencies that are difficult to mock for testing. Better to have a service manage a collection of objects for you than use new() wily-nilly.)
One more thing, they are all Singletons...
Also keep in mind that in both cases, angular is helping you manage a singleton....
When to Redis? When to MongoDB? [closed]
...m you are trying to solve, how can anyone propose a solution?
You need to test them both to see which of them satisfied your needs.
With that said, MongoDB does not require any expensive hardware. Like any other database solution, it will work better with more CPU and memory but is certainly not ...
Is floating point math broken?
...interested in before you display them.
You also need to replace equality tests with comparisons that allow some amount of tolerance, which means:
Do not do if (x == y) { ... }
Instead do if (abs(x - y) < myToleranceValue) { ... }.
where abs is the absolute value. myToleranceValue needs to ...
What's the best way to communicate between view controllers?
...Finally, not only is your BookPickerController reusable but also easier to test.
-(void) testBookPickerController {
MockBookWarehouse *myWarehouse = [[MockBookWarehouse alloc]init];
MockCheckoutController *myCheckout = [[MockCheckoutController alloc]init];
BookPickerViewController *bookP...
PHP parse/syntax errors; and how to solve them
...t/run the first line. A quick workaround is crafting a wrapper script, say test.php:
<?php
error_reporting(E_ALL);
ini_set("display_errors", 1);
include("./broken-script.php");
Then invoke the failing code by accessing this wrapper script.
It also helps to enable PHP's error_log and ...
When to use Storyboard and when to use XIBs
... in code and switching back and forth between the IDE and the simulator to test it out, each time waiting for compile & build.
Non-developers can be taught to set up layouts in storyboards and create the necessary hooks for the developers (IBOutlets and IBActions). That's a very big plus because...
Peak signal detection in realtime timeseries data
...Filter),
stdFilter = np.asarray(stdFilter))
Below is the test on the same dataset that yields the same plot as in the original answer for R/Matlab
# Data
y = np.array([1,1,1.1,1,0.9,1,1,1.1,1,0.9,1,1.1,1,1,0.9,1,1,1.1,1,1,1,1,1.1,0.9,1,1.1,1,1,0.9,
1,1.1,1,1,1.1,1,0.8,0.9,1...