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Go naming conventions for const
...
The standard library uses camel-case, so I advise you do that as well. The first letter is uppercase or lowercase depending on whether you want to export the constant.
A few examples:
md5.BlockSize
os.O_RDONLY is an exception be...
What are all the common undefined behaviours that a C++ programmer should know about? [closed]
...ts in the number (e.g. int64_t i = 1; i <<= 72 is undefined)
Types, Cast and Const
Casting a numeric value into a value that can't be represented by the target type (either directly or via static_cast)
Using an automatic variable before it has been definitely assigned (e.g., int i; i++; cout...
how to convert from int to char*?
...ne, except use const as:
char const* pchar = temp_str.c_str(); //dont use cast
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Static variables in JavaScript
...design template for classes.
It also answers your question:
function Podcast() {
// private variables
var _somePrivateVariable = 123;
// object properties (read/write)
this.title = 'Astronomy Cast';
this.description = 'A fact-based journey through the galaxy.';
this.link...
Getting the first character of a string with $str[0]
I want to get the first letter of a string and I've noticed that $str[0] works great. I am just not sure whether this is 'good practice', as that notation is generally used with arrays. This feature doesn't seem to be very well documented so I'm turning to you guys to tell me if it's all right –...
How to convert object array to string array in Java
... Good point. I understood the toString as just being a way of casting to a String, not the intention of actually replacing the objects with something else. If that is what you need to do, then looping is the only way.
– Yishai
Jun 19 '09 at 16:14
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Get number of digits with JavaScript
...mbers won't be easy due to well known behaviour of floating point math, so cast-to-string approach will be more easy and fool proof. As mentioned by @streetlogics fast casting can be done with simple number to string concatenation, leading the replace solution to be transformed to:
var length = (nu...
Can I use if (pointer) instead of if (pointer != NULL)?
...s, so readability or conciseness isn't that much of an issue here.
Dynamic casts. Casting a base-class pointer to a particular derived-class one (something you should again try to avoid, but may at times find necessary) always succeeds, but results in a null pointer if the derived class doesn't matc...
#1071 - Specified key was too long; max key length is 767 bytes
When I executed the following command:
34 Answers
34
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Why is there no Constant feature in Java?
...onst int x = 42;
std::cout << x << std::endl;
*const_cast<int*>(&x) = 7;
std::cout << x << std::endl;
return 0;
}
outputs 42 then 7.
Although x marked as const, as a non-const alias is created, x is not a constant. Not every compiler requires ...