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Assignment in an if statement
...effects within a condition, but the alternatives usually involve code duplication, and when you know this pattern it's easy to get right.
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How to pass macro definition from “make” command line arguments (-D) to C source code?
...
Just use a specific variable for that.
$ cat Makefile
all:
echo foo | gcc $(USER_DEFINES) -E -xc -
$ make USER_DEFINES="-Dfoo=one"
echo foo | gcc -Dfoo=one -E -xc -
...
one
$ make USER_DEFINES="-Dfoo=bar"
echo foo | gcc -Dfoo=bar -E -xc -
...
bar
$ make
...
How to get current memory usage in android?
...M on older versions, it seems it will just crash without you being able to catch it. Here's how to check for memory usage:
val nativeHeapSize = Debug.getNativeHeapSize()
val nativeHeapFreeSize = Debug.getNativeHeapFreeSize()
val usedMemInBytes = nativeHeapSize - nativeHeapFreeSize
val usedMemInPerc...
Using an image caption in Markdown Jekyll
... the image from your markdown with:
{% include image.html url="/images/my-cat.jpg" description="My cat, Robert Downey Jr." %}
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Rest with Express.js nested router
...oute handling
router.use('/products', require('./products'));
router.use('/categories', require('./categories'));
// etc.
module.exports = router;
./routes/api/products.js:
var router = require('express').Router();
// api/products
router.get('/', function(req, res) {
res.json({ products: [] }...
Which is better option to use for dividing an integer number by 2?
... answered May 21 '12 at 7:56
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UnicodeDecodeError when redirecting to file
...er and of accents).
Note that the concept of newline adds a layer of complication, since it can be represented by different (control) characters that depend on the operating system (this is the reason for Python's universal newline file reading mode).
Now, what I have called "character" above is wha...
How big is too big for a PostgreSQL table?
.... (An ORM with any dbms, actually.)
– Mike Sherrill 'Cat Recall'
Feb 19 '14 at 13:16
@MikeSherrill'Catcall' Good point...
How to “crop” a rectangular image into a square with CSS?
...ges">
<li><img src="http://fredparke.com/sites/default/files/cat-portrait.jpg" /></li>
<li><img src="http://fredparke.com/sites/default/files/cat-landscape.jpg" /></li>
</ul>
CSS:
li {
width: 150px; // Or whatever you want.
height: 150px; // Or...
What is the fastest way to compute sin and cos together?
...even faster (by comparison) than the cycle timings that I listed might indicate.
– Stephen Canon
Apr 21 '10 at 17:22
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