Your code curl_easy_setopt(handle,CURLOPT_WRITEFUNCTION,&AZLyricsDownloader::write_data_to_var); and the following quote from the documentation from libcurl There’s basically only one thing to keep in mind when using C++ instead of C when interfacing libcurl: The callbacks CANNOT be non-static class member functions Example C++ code: class AClass { static size_t write_data(void *ptr, size_t size, size_t nmemb, void* ourpointer) { … Read more
You are getting response in JSONObject and you are trying to get it in JSONArray.. thats why you are getting error.. Try this way… try { JSONObject result = new JSONObject(response); if(data.has(“ValidateLoginResult”){ JSONArray array = result.getJSONArray(“ValidateLoginResult”); for (int i = 0; i < array.length(); i++) { JSONObject obj = array.getJSONObject(i); String ErrorMessage= “”+obj.getString(“ErrorMessage”); String PropertyName= … Read more
You should look at this in the same way one would translate Chinese text to English. It’s not word for word, but you have to understand what is being said to rewrite it in another language. No, it is not as easy as replacing commands. Converting without rewriting would be a bad idea. First, get … Read more
Using image = forms.ImageField(widget=forms.FileInput,) in forms class ProfileUpdate(forms.ModelForm): image = forms.ImageField(widget=forms.FileInput,) class Meta: model = UserInfo fields = (‘image’, ‘fullname’, ‘mobile’, ‘occupation’, ‘address’, ‘city’, ‘state’, ‘pincode’) solved How to hide location of image in django?
When you see people’s code online, you may see >>> before their code because they ran through it in the terminal. For example: >>> print “Hello, World!” Hello, World! >>> This is code they typed into the python terminal. That means they haven’t saved their code to a file. In the terminal, the arrows appear … Read more
No, no, no, just use std::string! Easier to use, and easier to understand! #include<iostream> #include <string> using namespace std; int main(){ string name,add; cout<<“Name: “; getline(cin, name); // A name probably has more than 1 word cout<<“\n\tadd: “; cin>>add; cout<<“\n\tName:”<<name; cout<<“\n\t Add:”<<add; return 0; } As far as your problem goes with your original code, … Read more
I would not expect an exception to be thrown at all on that line. Read the docs more closely: an exception may be thrown if the specified element cannot be compared with elements currently in this priority queue according to the priority queue’s ordering Since there are no other elements currently in the priority queue, … Read more
change sums=0 position def vector(sample_list): sums = 0 for item in sample_list: square = item**2 sums = square + sums magnitude = sums**0.5 return magnitude 0 solved What’s wrong in this python code? [closed]
I am thinking about using a NoSQL database to scale database reads Good idea. It sounds like you are going down the path of Command Query Responsibility Segregation(CQRS). NoSql databases make for excellent read stores. The link you referenced describes a technique to update Combining SQL Server and MongoDB using NHibernate – this is what … Read more
You can use regex to split on capitals and then rejoin with space: .split(/(?=[A-Z])/).join(‘ ‘) let myStrings = [‘myString’,’myTestString’]; function myFormat(string){ return string.split(/(?=[A-Z])/).join(‘ ‘); } console.log(myFormat(myStrings[0])); console.log(myFormat(myStrings[1])); solved How can I write a function that will format a camel cased string to have spaces?
Thank you @Len_D. The answer can be found here by someone else who already asked this question: Open Datepicker by clicking a Link <input id=”hiddenDate” type=”hidden” /> <a href=”#” id=”pickDate”>Select Date</a> And the JS: $(function() { $(‘#hiddenDate’).datepicker({ changeYear: ‘true’, changeMonth: ‘true’, startDate: ’07/16/1989′, firstDay: 1 }); $(‘#pickDate’).click(function (e) { $(‘#hiddenDate’).datepicker(“show”); e.preventDefault(); }); }); solved how … Read more
So how is the 10000th element stored here? The element isn’t stored in the vector. It’s ‘stored’ in a piece of memory that is unrelated to the vector. Isn’t the expected behavior here a “Segmentation fault”? No. The behaviour is undefined, so there is no behaviour to expect. But the above runs successfully. That’s a … Read more
h<-hist(data, breaks=”FD”, col=”red”, xlab=”xTitle”, main=”Normal pdf and histogram”) xfit<-seq(min(data),max(data),length=100) x.norm<-rnorm(n=100000, mean=a, sd=b) yfit<-dnorm(xfit,mean=mean(x.norm),sd=sd(x.norm)) yfit <- yfit*diff(h$mids[1:2])*length(loose_All) lines(xfit, yfit, col=”blue”, lwd=2) 1 solved histogram and pdf in the same graph [duplicate]
I would use a HashSet<string> in this case: var files = new HashSet<string> { “file0”, “file1”, “file2”, “file3” }; string originalFile = “file0″; string file = originalFile; int counter = 0; while (!files.Add(file)) { file = $”{originalFile}({++counter})”; } If you have to use a list and the result should also be one, you can still … Read more
Here’s how you can resize the image while preserving its aspect ratio. The code below is from a category for UIImage: + (UIImage*)imageWithImage:(UIImage *)image scaledToSize:(CGSize)newSize { float heightToWidthRatio = image.size.height / image.size.width; float scaleFactor = 1; if(heightToWidthRatio > 0) { scaleFactor = newSize.height / image.size.height; } else { scaleFactor = newSize.width / image.size.width; } CGSize … Read more