If the program really does print 0 for you then there might be a serious problem with your compiler (or even your machine…). My suspicion is that it doesn’t print 0, but your question is really why the program loops infinitely. This is because the if-body only contains the print statement. So when a reaches … Read more
In C, characters are represented internally using ascii. Characters are just numeric types, so adding them just adds the ascii* values. (Google ASCII for more info on this.) In ascii, ‘=’ is 61, so ‘=’ + ‘=’ is the same as 61 + 61, or 122, which is what you’re getting. If you were hoping … Read more
If you are using the Aspose library as stated in your comment you can achieve this through a customised implementation of the IReplacingCallback interface. bool IsContain(string word, string filePath) { Document doc = new Document(filePath); OccurrencesCounter counter = new OccurrencesCounter(); doc.Range.Replace(new Regex(word), counter, false); return counter.Occurrences > 0; } private class OccurrencesCounter : IReplacingCallback { … Read more
Entity Framework has some async methods. You should use ToListAsync() but your method has to return the complete object. When you receive the object returned by the method, then you can use the Select method to get what you want. public async Task<IEnumerable<Intermediary>> GetTest(string company) { var db = new SibaCiidDbContext(); var results = (from … Read more
The following program will read from stdin with a timeout, which is what you want. #include <stdio.h> #include <unistd.h> #include <sys/select.h> #define LEN 100 int main() { struct timeval timeout = {3, 0}; fd_set fds; FD_ZERO(&fds); FD_SET(STDIN_FILENO, &fds); printf(“Hi. What is your name?\n”); int ret = select(1, &fds, NULL, NULL, &timeout); if (ret == -1) … Read more
Here’s an example I used: double real; double imaginary; std::vector<std::complex<double> > database; //… std::cin >> real; std::cin >> imaginary; const std::complex<double> temp(real, imaginary); database.push_back(temp); In the above example, I read in the real and imaginary components separately. Next, I create a temporary complex object using the real and imaginary components. Finally, I push_back the value … Read more
Don’t define your own (broken) sin function – use the one that’s already in the math library: printf(“The sine of 1 radian is %.3f.\n”, sin(1.0)); 7 solved Using the math library to display the sine of 1 radian rounded to three decimal points in C [closed]
Moving the line stringstream aa; just before the line aa << b; solves the problem for me. This is perhaps caused by use of aa both as an input stream as well as output stream. Not sure of the details. Update Here’s your program with a bit of error checking code thrown in. #include <iostream> … Read more
While looking at your code, why would one want to read class specific properties in a generic method? The only solutions i see is to use Reflection, or create an abstract base class with a before save method and call that method in de Save() method. Add a generic type constraint to the DBObject class … Read more
OP here. These are the steps I took to resolve my issue, based on the last edit of my question: With the separate files, as given in my question, the error was Expected identifier in mscmix_dat.c. Per @LightnessRacesinOrbit’s suggestion, I consolidated the multiple main.cpp, msclib.h, msclib.c, and mscmix_dat.c files into two files: main.cpp and msclib.c, … Read more
a1 is an uninitialized pointer. It does not point anywhere. Using it causes undefined behaviour. You can only dereference pointers that point to valid objects. In your sample code there is actually no way to create a saa since it has protected constructors. You would have to derive a class from saa, create an instance … Read more
Ok, you dynamically allocate 10 bytes. Then you make the “name” variable (a char pointer) point to that dynamically allocated block. Then you make a char pointer which points to the same dynamically allocated block that “name” points to. Then you “free(name)” which deallocates the block that “tmp_name” also points to. “name” and “tmp_name” both … Read more
If you want this to trigger in February, May, August and November, you shouldn’t be subtracting one from the difference. Just use: return (monthDiff % periodicity) == 0; When the months are equal (February), 0 % 3 == 0. When you’re a multiple of three months out (such as August), 6 % 3 == 0. … Read more
You can’t compare two string pointers with != or ==. you need to use strcmp, for example: while (strcmp(check,input) != 0) strcmp compares the string pointed to, by str1 to the string pointed to by str2. 3 solved I am trying to write a program that stops with a specific string input [duplicate]
Among other problems you are assuming that the ciphertext can be converted to UTF-8 meaningfully, and that isn’t guaranteed. If you want to encrypt text and transmit/store the encrypted contents as text you need to follow this pattern: Encrypt(textIn => textOut): Convert textIn to bytesIn via some encoding. UTF-8 is pretty good. Encrypt bytesIn to … Read more