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Why doesn't the JVM cache JIT compiled code?
...ed goal is:
Save and reuse compiled native code from previous runs in order to
improve the startup time of large Java applications.
Hope this helps.
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Pointers in C: when to use the ampersand and the asterisk?
... stream points to, so changing stream has no effect on the value of in; in order for this to work, we must pass in a pointer to the pointer:
int myFopen(FILE **stream) {*stream = fopen("myFile.dat", "r"); }
...
FILE *in;
myFopen(&in);
Again, arrays throw a bit of a monkey wrench into the work...
How to convert an IPv4 address into a integer in C#?
...igned 32-bit value of the IPv4 address (the catch is, it's in network byte order, so you need to swap it around).
For example, my local google.com is at 64.233.187.99. That's equivalent to:
64*2^24 + 233*2^16 + 187*2^8 + 99
= 1089059683
And indeed, http://1089059683/ works as expected (at least ...
Change MySQL default character set to UTF-8 in my.cnf?
...athias Bynens mentioned that 'utf8mb4' should be used instead of 'utf8' in order to have better UTF-8 support ('utf8' does not support 4 byte characters, fields are truncated on insert). I consider this to be an important difference. So here is yet another answer on how to set the default character ...
How to convert an NSString into an NSNumber
...r of any primitive data type (e.g. int , float , char , unsigned int , etc.)? The problem is, I don't know which number type the string will contain at runtime.
...
How to reverse a singly linked list using only two pointers?
...st use a doubly linked list if you think you are going to need the reverse order.
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Where is the php.ini file on a Linux/CentOS PC? [duplicate]
...
And it will show you something like this Loaded Configuration File => /etc/php.ini.
ALTERNATIVE METHOD
You can make a php file on your website, which run: <?php phpinfo(); ?>, and you can see the php.ini location on the line with: "Loaded Configuration File".
Update
This command gives t...
mysql -> insert into tbl (select from another table) and some default values [duplicate]
... you can do something like this:
INSERT INTO course_payment
SELECT NULL, order_id, payment_gateway, total_amt, charge_amt, refund_amt, NOW()
FROM orders ORDER BY order_id DESC LIMIT 10;
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SELECT DISTINCT on one column
... ID, SKU, Product,
ROW_NUMBER() OVER (PARTITION BY PRODUCT ORDER BY ID) AS RowNumber
FROM MyTable
WHERE SKU LIKE 'FOO%') AS a
WHERE a.RowNumber = 1
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What does the CSS rule “clear: both” do?
...to floats / clear both, used it for demo purpose only */
box-sizing: border-box;
-moz-box-sizing: border-box;
-webkit-box-sizing: border-box;
}
header, footer {
border: 5px solid #000;
height: 100px;
}
aside {
float: left;
width: 30%;
border: 5px solid...