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How to remove from a map while iterating it?
...uld not erase const-iterators. There you would have to say:
for (std::map<K,V>::iterator it = m.begin(); it != m.end(); ) { /* ... */ }
Erasing an element from a container is not at odds with constness of the element. By analogy, it has always been perfectly legitimate to delete p where p i...
HTML.ActionLink vs Url.Action in ASP.NET Razor
...
Yes, there is a difference. Html.ActionLink generates an <a href=".."></a> tag whereas Url.Action returns only an url.
For example:
@Html.ActionLink("link text", "someaction", "somecontroller", new { id = "123" }, null)
generates:
<a href="/somecontroller/someac...
Unmangling the result of std::type_info::name
...tion/etc. but it's mangled. It's not very useful. I.e. typeid(std::vector<int>).name() returns St6vectorIiSaIiEE .
...
“icon-bar” in twitter bootstrap navigation bar
... I had to make a few modifications to actually get things working that I felt were worth sharing here. Putting it in it's own answer so that it gets proper code formatting.
I used this in a dropdown toggle button instead of navbar (same idea). Here's the code I used:
HTML:
<div cla...
How to change options of with jQuery?
Suppose a list of options is available, how do you update the <select> with new <option> s?
9 Answers
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How to change the style of the title attribute inside an anchor tag?
...;
position: absolute;
top: 10px;
text-decoration: none
}
<a href="#" class="tip">Link<span>This is the CSS tooltip showing up when you mouse over the link</span></a>
share
...
How to redirect cin and cout to files?
...de does. I've tested it on my pc with gcc 4.6.1; it works fine.
#include <iostream>
#include <fstream>
#include <string>
void f()
{
std::string line;
while(std::getline(std::cin, line)) //input from the file in.txt
{
std::cout << line << "\n"; /...
SortedList, SortedDictionary and Dictionary
I find that SortedList<TKey, TValue> SortedDictionary<TKey, TValue> and Dictionary<TKey, TValue> implement the same interfaces.
...
while (1) Vs. for (;;) Is there a speed difference?
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In perl, they result in the same opcodes:
$ perl -MO=Concise -e 'for(;;) { print "foo\n" }'
a <@> leave[1 ref] vKP/REFC ->(end)
1 <0> enter ->2
2 <;> nextstate(main 2 -e:1) v ->3
9 <2> leaveloop v...
How to compare a local git branch with its remote branch?
...-tracking branches, you need to type git fetch first and then :
git diff <masterbranch_path> <remotebranch_path>
You can git branch -a to list all branches (local and remote) then choose branch name from list (just remove remotes/ from remote branch name.
Example: git diff master ori...