大约有 16,000 项符合查询结果（耗时：0.0327秒） [XML]
Constant pointer vs Pointer to constant [duplicate]
...
const int* ptr;
declares ptr a pointer to const int type. You can modify ptr itself but the object pointed to by ptr shall not be modified.
const int a = 10;
const int* ptr = &a;
*ptr = 5; // wrong
ptr++; // right
Whi...
Extracting hours from a DateTime (SQL Server 2005)
...EN 10 THEN '10AM'
WHEN 11 THEN '11AM'
WHEN 12 THEN '12PM'
ELSE CONVERT(varchar, DATEPART(HOUR, R.date_schedule)-12) + 'PM'
END
FROM
dbo.ARCHIVE_RUN_SCHEDULE R
share
|
improve this a...
Are typedef and #define the same in c?
...ect, but it's better to use the proper one for your needs
#define MY_TYPE int
typedef int My_Type;
When things get "hairy", using the proper tool makes it right
#define FX_TYPE void (*)(int)
typedef void (*stdfx)(int);
void fx_typ(stdfx fx); /* ok */
void fx_def(FX_TYPE fx); /* error */
...
What is the difference between “def” and “val” to define a function
...nd creates new function every time (new instance of Function1).
def even: Int => Boolean = _ % 2 == 0
even eq even
//Boolean = false
val even: Int => Boolean = _ % 2 == 0
even eq even
//Boolean = true
With def you can get new function on every call:
val test: () => Int = {
val r = ut...
How can I decode HTML characters in C#?
...s encoded with HTML character entities. Is there anything in .NET that can convert them to plain strings?
10 Answers
...
Draw in Canvas by finger, Android
...
Start By going through the Fingerpaint demo in the sdk sample.
Another Sample:
public class MainActivity extends Activity {
DrawingView dv ;
private Paint mPaint;
@Override
protected void onCreate(Bundle savedInstanceState) {
s...
Difference between int[] array and int array[]
...
They are semantically identical. The int array[] syntax was only added to help C programmers get used to java.
int[] array is much preferable, and less confusing.
share
|
...
Limit Decimal Places in Android EditText
...plements InputFilter {
Pattern mPattern;
public DecimalDigitsInputFilter(int digitsBeforeZero,int digitsAfterZero) {
mPattern=Pattern.compile("[0-9]{0," + (digitsBeforeZero-1) + "}+((\\.[0-9]{0," + (digitsAfterZero-1) + "})?)||(\\.)?");
}
@Override
public CharSequence filter(CharSequence sour...
How can mixed data types (int, float, char, etc) be stored in an array?
... elements a discriminated union, aka tagged union.
struct {
enum { is_int, is_float, is_char } type;
union {
int ival;
float fval;
char cval;
} val;
} my_array[10];
The type member is used to hold the choice of which member of the union is should be used for ea...
Check if two lists are equal [duplicate]
...nce equality because Equals method checks for reference equality.
var a = ints1.SequenceEqual(ints2);
Or if you don't care about elements order use Enumerable.All method:
var a = ints1.All(ints2.Contains);
The second version also requires another check for Count because it would return true ev...