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What does the M stand for in C# Decimal literal notation?
... not lose/garble any information. The same is not true of decimal numbers. Casting the double value 0.42 to decimal can give you a different value than 0.42M (and the same for using a double literal in place of a float literal - float val = 423.3 also fails). So you're choosing between a subtly wron...
Best way to store time (hh:mm) in a database
..., while also making conversion to a DATETIME simple.
For example:
SELECT CAST(0.5 AS DATETIME)
--1900-01-01 12:00:00.000
Storing the value as a DECIMAL(9,9) would consume 5 bytes. However, if precision to not of utmost importance, a REAL would consume only 4 bytes. In either case, aggregate calc...
When NOT to use yield (return) [duplicate]
...the collection itself would allow the end user to modify it (with a proper cast), whereas the first method would not.
– Grx70
Jul 19 '15 at 9:04
1
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Get an OutputStream into a String
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Just casting a byte to char will only work on ascii. Use ByteArrayOutputStream like Horcrux7
– Dave Ray
Oct 11 '09 at 22:45
...
Concatenate two string literals
...ncatenate a std::string object with a literal it will make the appropriate casting for the literal.
But if you try to concatenate two literals, the compiler won't be able to find an operator that takes two literals.
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How do I unit test web api action method when it returns IHttpActionResult?
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Time to resurrect a dead question
The current answers all rely on casting the response object to a known type. Unfortunately, the responses do not seem to have a useable hierarchy or implicit conversion path for this to work without intimate knowledge of the controller implementation. Consi...
How do I force Postgres to use a particular index?
...s when datatypes don't match properly, you may need to include appropriate casts.
Your planner settings might be causing problems.
See also this old newsgroup post.
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Is the pImpl idiom really used in practice?
...about the implementation or just break the encapsulation by using terrible casting tricks. PIMPL solves/mitigates that.
Compilation time
Compilation time is decreased, since only the source (implementation) file of X needs to be rebuilt when you add/remove fields and/or methods to the XImpl class...
Difference between a Structure and a Union
...ome_test_pointer;
some_test_pointer can point to int* or double*. If you cast an address of type test to int*, it will point to its first member, a, actually. The same is true for an union too. Thus, because an union will always have the right alignment, you can use an union to make pointing to so...
What's the meaning of interface{}?
...mment by @NickCraig-Wood. interface{} can point to anything and you need a cast/type assertion to use it.
package main
import (
. "fmt"
"strconv"
)
var c = cat("Fish")
var d = dog("Bone")
func main() {
var i interface{} = c
switch i.(type) {
case cat:
c.Eat() // Fish...