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Abandoning changes without deleting from history
...r you is to mark the old branch as "closed". If your old head is revision "123" then:
hg update -r 123
hg commit --close-branch -m 'Closing old branch'
hg update -C default
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Type erasure techniques
...
All type erasure techniques in C++ are done with function pointers (for behaviour) and void* (for data). The "different" methods simply differ in the way they add semantic sugar. Virtual functions, e.g., are just semantic sugar for
struct Class {
struct vtable {
...
How can I move a tag on a git branch to a different commit?
...imately has a problem and needs to be updated/re-released.
git tag -d fix123 # delete the old local tag
git push github :fix123 # delete the old remote tag (use for each affected remote)
git tag fix123 790a621265 # create a new local tag
git push github fix123 ...
Trees in Twitter Bootstrap [closed]
... Where is the collapse expand functionality?
– Syed Aqeel Ashiq
Aug 17 '15 at 13:05
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How to convert a color integer to a hex String in Android?
...sses nor java. So you could use it in multiplatform project as well:
fun Int.toRgbString(): String =
"#${red.toStringComponent()}${green.toStringComponent()}${blue.toStringComponent()}".toUpperCase()
fun Int.toArgbString(): String =
"#${alpha.toStringComponent()}${red.toSt...
How to get rid of the 'undeclared selector' warning
...se a leak because its selector is unknown".
– Hampden123
Nov 20 '13 at 16:38
1
@Hampden123: that ...
Jackson JSON custom serialization for certain fields
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Using Regular Expressions to Extract a Value in Java
...e matcher for pattern p and given string
Matcher m = p.matcher("Testing123Testing");
// if an occurrence if a pattern was found in a given string...
if (m.find()) {
// ...then you can use group() methods.
System.out.println(m.group(0)); // whole matched expression
...
Reshaping data.frame from wide to long format
... 1952 10,058
7: AFG Afghanistan 1953 23,557
8: ALB Albania 1953 11,123
9: AFG Afghanistan 1954 24,555
10: ALB Albania 1954 12,246
Some alternative notations:
melt(setDT(wide), id.vars = 1:2, variable.name = "year")
melt(setDT(wide), measure.vars = 3:7, variable.name = "year")
melt...
Drawing a line/path on Google Maps
....1), new LatLng(40.7, -74.0))
.width(5)
.color(Color.RED));
from https://developers.google.com/maps/documentation/android/reference/com/google/android/gms/maps/model/Polyline
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