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Can a class member function template be virtual?
...using MinGW G++ 3.4.5 on Window 7:
#include <iostream>
#include <string>
using namespace std;
template <typename T>
class A{
public:
virtual void func1(const T& p)
{
cout<<"A:"<<p<<endl;
}
};
template <typename T>
class B
: public...
Pretty printing JSON from Jackson 2.2's ObjectMapper
... of org.fasterxml.jackson.databind.ObjectMapper and would like to get a String with pretty JSON. All of the results of my Google searches have come up with Jackson 1.x ways of doing this and I can't seem to find the proper, non-deprecated way of doing this with 2.2. Even though I don't believe t...
How do I work around JavaScript's parseInt octal behavior?
...
@Grodriguez, and when 0 in |0 is a string?
– Oleg V. Volkov
Oct 24 '14 at 16:29
...
Overriding id on create in ActiveRecord
... @jkndrkn - I don't know what you mean. I've got ActiveRecord::VERSION::STRING == "3.2.11" here (with the sqlite3 adapter) and the above works for me.
– Felix Rabe
Feb 17 '13 at 18:43
...
Get image data url in JavaScript?
...(except the unescaped / in the return), it does not create the same base64 string as the one I'm getting from PHP when doing base64_encode on the file obtained with file_get_contents function. The images seem very similar/the same, still the Javascripted one is smaller and I'd love them to be exactl...
Shorten string without cutting words in JavaScript
I'm not very good with string manipulation in JavaScript, and I was wondering how you would go about shortening a string without cutting any word off. I know how to use substring, but not indexOf or anything really well.
...
How to manage startActivityForResult on Android?
...COND_ACTIVITY) {
if(resultCode == Activity.RESULT_OK){
String result=data.getStringExtra("result");
}
if (resultCode == Activity.RESULT_CANCELED) {
//Write your code if there's no result
}
}
}//onActivityResult
To implement passing data b...
Difference between 'struct' and 'typedef struct' in C++?
...hat C++
generates a typedef for every tag
name, such as
typedef class string string;
Unfortunately, this is not entirely
accurate. I wish it were that simple,
but it's not. C++ can't generate such
typedefs for structs, unions, or enums
without introducing incompatibilities
with ...
C++ lambda with captures as a function pointer
...ath)> callback) {
return callback(fpath);
}
int main()
{
vector<string> entries;
std::function<int (const char *fpath)> callback = [&](const char *fpath) -> int {
entries.push_back(fpath);
return 0;
};
int ret = ftw("/etc", callback);
for (auto entry : e...
廉价共享存储解决方案2-drbd+cman+gfs2 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...and check in:
.ssh/authorized_keys
to make sure we haven't added extra keys that you weren't expecting.
[root@gfs_2 ~]# ssh-keygen -t rsa -P ''
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Your identification has been saved in /root/....