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How to cast/convert pointer to reference in C++
... bhhaaa, I added the "I guess" because it made me write at least 30 chars. that's also way I add the "..........."
– Roee Gavirel
Apr 16 '12 at 11:41
10
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Is Using .NET 4.0 Tuples in my C# Code a Poor Design Decision?
...pport for tuples in C#:
private var GetDesserts()
{
return _icecreams.Select(
i => new { icecream = i, topping = new Topping(i) }
);
}
public void Eat()
{
foreach (var dessert in GetDesserts())
{
dessert.icecream.AddTopping(dessert.topping);
dessert.Eat()...
How are multi-dimensional arrays formatted in memory?
...
unsigned char MultiArray[5][2]={{0,1},{2,3},{4,5},{6,7},{8,9}};
in memory is equal to:
unsigned char SingleArray[10]={0,1,2,3,4,5,6,7,8,9};
share
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How can I output the value of an enum class in C++11
...;< together, with the error error: cannot bind ‘std::basic_ostream<char>’ lvalue to ‘std::basic_ostream<char>&&’. this appears to be because when the stream is temporary, the ADL fails, and the above template is not a possibility. any tips?
– of...
How do I show the value of a #define at compile-time?
...ment with the argument enclosed in double quotes. Thus:
#define STR(x) #x
char *s1 = "abc";
char *s2 = STR(abc);
will assign identical values to s1 and s2. If you run gcc -E you can see this in the output. Perhaps STR would be better named something like ENQUOTE.
This solves the problem of putti...
Is there a good reason I see VARCHAR(255) used so often (as opposed to another length)?
...n multiple courses, books, and jobs, I have seen text fields defined as VARCHAR(255) as kind of the default for "shortish" text. Is there any good reason that a length of 255 is chosen so often, other than being a nice round number ? Is it a holdout from some time in the past when there was a goo...
Variable declaration placement in C
...declare all of your variables at the beginning of a scope block.
So, your char c declaration is valid as it is at the top of the for loop scope block. But, the char *s declaration should be an error.
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What is the difference between cout, cerr, clog of iostream header in c++? When to use which one?
...minal is historically slow (terminals or consoles are still slow), writing character by character is ineffective, writing a chunk of bytes is much more effective.
– Some programmer dude
Apr 4 '18 at 17:23
...
List of standard lengths for database fields
...ize for names in your
database. In particular, do not assume that a four-character
Japanese name in UTF-8 will fit in four bytes – you are likely to
actually need 12.
https://www.w3.org/International/questions/qa-personal-names
For database fields, VARCHAR(255) is a safe default choic...
Const before or const after?
...to constant pointer. Brilliant. And finally it explains why I can do const char as well as char const.
– Vit Bernatik
Mar 10 '17 at 17:48
2
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