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Why use strict and warnings?
...erl to code properly which could be forcing declaration, being explicit on strings and subs i.e. barewords or using refs with caution. Note: if there are errors use strict will abort the execution if used.
While use warnings; will help you find typing mistakes in program like you missed a semicolon...
Upgrading PHP in XAMPP for Windows?
...ep 4 is not needed. After doing the rest I also copied the php.ini and php/extras from the backup folder. (It was also mentioned in the comments of the article, that helped me too)
– Musa Haidari
Aug 15 '14 at 8:21
...
Why charset names are not constants?
...
The simple answer to the question asked is that the available charset strings vary from platform to platform.
However, there are six that are required to be present, so constants could have been made for those long ago. I don't know why they weren't.
JDK 1.4 did a great thing by introducing t...
How to add a line break in an Android TextView?
...ot mentioning the other change you made which was adding quotes around the string.
– Patrick
Mar 26 '15 at 18:51
2
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How can I get the MAC and the IP address of a connected client in PHP?
...dress" and use substr() function to
retrieve the adress from this long string.
here in my case i'm using a french cmd.
you can change the numbers according adress mac position in the string.
*/
echo substr(shell_exec ("ipconfig/all"),1821,18);
?>
...
When should you not use virtual destructors?
...ays that if you were to copy from an object with POD type into an array of chars (or unsigned chars) and back again, then the result will be the same as the original object.]
Modern C++
In recent versions of C++, the concept of POD was split between the class layout and its construction, copying a...
How to run a program without an operating system?
...M calls theirs semihosting for example. On real hardware, it requires some extra hardware and software support, but on emulators it can be a free convenient option. Example.
Here we will do a BIOS example as it is simpler on x86. But note that it is not the most robust method.
main.S
.code16
m...
How do I break a string across more than one line of code in JavaScript?
...
In your example, you can break the string into two pieces:
alert ( "Please Select file"
+ " to delete");
Or, when it's a string, as in your case, you can use a backslash as @Gumbo suggested:
alert ( "Please Select file\
to delete");
Note that this back...
C pointers : pointing to an array of fixed size
... an array to a function is by using a pointer-to-array parameter
void foo(char (*p)[10]);
(in C++ language this is also done with references
void foo(char (&p)[10]);
).
This will enable language-level type checking, which will make sure that the array of exactly correct size is supplied a...
How do malloc() and free() work?
...
@Juergen But when free() read extra byte which contain information how much memory allocated from malloc, it get 4. Then how crash happened or how free() touch administrative data ?
– Undefined Behaviour
Aug 5 '16 at...