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Qt c++ aggregate 'std::stringstream ss' has incomplete type and cannot be defined
...ward declaration of the class, but haven't included the header:
#include <sstream>
//...
QString Stats_Manager::convertInt(int num)
{
std::stringstream ss; // <-- also note namespace qualification
ss << num;
return ss.str();
}
...
Reverting part of a commit with git
... organization still uses CVS as a standard, so when I commit back to CVS multiple git commits are rolled into one. In this case I would love to single out the original git commit, but that is impossible.
...
How do I change permissions for a folder and all of its subfolders and files in one step in Linux?
...you'd set only one or the other. See this guide for more info: nixsrv.com/llthw/ex23
– Alexandr Kurilin
Jul 26 '13 at 3:11
...
How do I get the key at a specific index from a Dictionary in Swift?
...
That's because keys returns LazyMapCollection<[Key : Value], Key>, which can't be subscripted with an Int. One way to handle this is to advance the dictionary's startIndex by the integer that you wanted to subscript by, for example:
let intIndex = 1 // where intIn...
ASP.NET MVC: Custom Validation by DataAnnotation
... int MinLength { get; private set; }
protected override ValidationResult IsValid(object value, ValidationContext validationContext)
{
var properties = this.PropertyNames.Select(validationContext.ObjectType.GetProperty);
var values = properties.Select(p => p.GetValue(valid...
SQL keys, MUL vs PRI vs UNI
... field is (part of) a non-unique index. You can issue
show create table <table>;
To see more information about the table structure.
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A simple scenario using wait() and notify() in java
...o block until there is some element to return.
public class BlockingQueue<T> {
private Queue<T> queue = new LinkedList<T>();
private int capacity;
public BlockingQueue(int capacity) {
this.capacity = capacity;
}
public synchronized void put(T element...
Should have subtitle controller already set Mediaplayer error Android
...ediaplayer = new MediaPlayer();
if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.KITKAT) {
return mediaplayer;
}
try {
Class<?> cMediaTimeProvider = Class.forName( "android.media.MediaTimeProvider" );
Class<?> cSubtitleControl...
How do I properly compare strings in C?
...elationship/problem of "\n" and string literal? I am getting not equal result in comparing of strings (line) of a file with other whole file.
– incompetent
Jul 17 '19 at 16:32
...
Ruby max integer
...an would be more efficient, but more risky
end
if next_number_to_try <= largest_known_fixnum ||
smallest_known_bignum && next_number_to_try >= smallest_known_bignum
raise "Can't happen case"
end
case next_number_to_try
when Bignum then smallest_known_bignum = ...