Yahoo Web Search

Search results

1. Top results related to what are the function of dictionary in c compiler design in c# 5 with code

   • C/C++ Code Compiler in C#

     Top Answer

     Answered Nov 01, 2013 · 8 votes

     You can compile c++/cli code, not native c++ as mentioned above. You can archive c++/cli compilation with CppCodeProvider (http://msdn.microsoft.com/en-us/library/microsoft.visualc.cppcodeprovider(v=vs.85).aspx) class using it like in your example.

     Check all answers on Stack Overflow

     1/5

   • In XML, what are the nodes with question marks called, and how do I add them in C#?

     Top Answer

     Answered Jul 26, 2010 · 8 votes

     These are called processing instructions. Add 'em using XmlDocument.CreateProcessingInstruction.

     Check all answers on Stack Overflow

     2/5

   • in c we are using abs to find the absolute value,in c# what we are using for that purpose?

     Top Answer

     Answered Jul 02, 2017 · 4 votes

     Are you looking for Math.Abs?

     ...else if (Math.Abs(z-x) < Math.Abs(z-y))) { ... }-

     You can get rid of annoying Math. class prefix with a help of using static:

     using static System.Math;-... -else if (Abs(z-x) < Abs(z-y))) { ... }

     Check all answers on Stack Overflow

     3/5

   • C# program exits with code 0 in the middle of execution

     Top Answer

     Answered May 24, 2018 · 1 votes

     Printed out the exception via the catch block but it was never reached. The try block executed successfully. Removing the try/catch/finally blocks 'fixed' the issue.

     This is only a partial fix as there is no longer a way to handle errors now.

     public static string MergePDFs(List<string> fileNames, ref string targetPdf){- string merged = ""; using (FileStream stream = new FileStream(targetPdf, FileMode.Create)) { Document document = new Document(); PdfCopy pdf = new PdfCopy(document, stream); PdfReader reader = null; document.Open(); foreach (var file in fileNames) { reader = new PdfReader(file); pdf.AddDocument(reader); reader.Close(); } document.Close(); } return merged;}

     Check all answers on Stack Overflow

     4/5

   • What are the uses of "using" in C#?

     Top Answer

     Answered Apr 24, 2020 · 534 votes

     The reason for the using statement is to ensure that the object is disposed as soon as it goes out of scope, and it doesn't require explicit code to ensure that this happens.

     As in Understanding the 'using' statement in C# (codeproject) and Using objects that implement IDisposable (microsoft), the C# compiler converts

     using (MyResource myRes = new MyResource()){ myRes.DoSomething();}

     to

     { // Limits scope of myRes MyResource myRes= new MyResource(); try { myRes.DoSomething(); } finally { // Check for a null resource. if (myRes != null) // Call the object's Dispose method. ((IDisposable)myRes).Dispose(); }}

     C# 8 introduces a new syntax, named "using declarations":

     A using declaration is a variable declaration preceded by the using keyword. It tells the compiler that the variable being declared should be disposed at the end of the enclosing scope.

     So the equivalent code of above would be:

     using var myRes = new MyResource();myRes.DoSomething();

     And when control leaves the containing scope (usually a method, but it can also be a code block), myRes will be disposed.

     Other Answers

     Answered Jul 21, 2017 · 138 votes

     Since a lot of people still do:

     using (System.IO.StreamReader r = new System.IO.StreamReader(""))using (System.IO.StreamReader r2 = new System.IO.StreamReader("")) { //code}

     I guess a lot of people still don't know that you can do:

     using (System.IO.StreamReader r = new System.IO.StreamReader(""), r2 = new System.IO.StreamReader("")) { //code}

     Other Answers

     Answered Mar 05, 2018 · 100 votes

     Things like this:

     using (var conn = new SqlConnection("connection string")){ conn.Open(); // Execute SQL statement here on the connection you created}

     This SqlConnection will be closed without needing to explicitly call the .Close() function, and this will happen even if an exception is thrown, without the need for a try/catch/finally.

     Check all answers on Stack Overflow

     5/5

   Show moreShow less

2. www.geeksforgeeks.org › implementation-on-map-orImplementation on Map or Dictionary Data Structure in C

   www.geeksforgeeks.org › implementation-on-map-or

   • Cached

   Mar 27, 2023 · The printMap function prints all the key-value pairs in the map. In the main function, we insert some key-value pairs into the map, get the value of some keys, and print the map. Here’s an example implementation of a map using arrays: C. #include <stdio.h>. #include <string.h>.

3. stackoverflow.com › questions › 4233536C# Store functions in a Dictionary - Stack Overflow

   stackoverflow.com › questions › 4233536

   • Cached

   In .NET in order to invoke a function you need to pass all the arguments and if you don't know what the arguments are going to be the only way to achieve this is through reflection. And here's another alternative: class Program. {. static void Main() {. // store. var dico = new Dictionary<int, Delegate>();

   Code sample

   private object function2(object arg1) { return null; }

   private object function3(object arg1, object arg3) { return null; }

   Dictionary<string, Func<State, object>> functions;

   public Interceptor() {

     functions = new Dictionary<string, Func<State, object>>();...

   See more on stackoverflow

4. People also ask

   Should a dictionary be used in source code?

   • By using a Dictionary in source code, you basically force the compiler's hand; it will do it your way, instead of compromising on performance to gain memory efficiency. So, I would expect most cases in which either a switch statement or a Dictionary could be used in source to perform better when using a Dictionary.

   c# - In a switch vs dictionary for a value of Func, which is faster and why…

   stackoverflow.com/questions/11617091/in-a-switch-vs-dictionary-for-a-value-of-func-which-is-faster-and-why

   See all results for this question

   Why do we use dictionaries?

   • You will mostly use dictionaries because they are convenient. It's usually because of the search complexity. Searching in list is O (n), but searching in dictionary is O (1). However it all depends on the other questions - is the list sorted by the key? If so, then search is O (nlogn), how is the dictionary implemented?

   When to use Dictionary in C#? - Stack Overflow

   stackoverflow.com/questions/37969936/when-to-use-dictionary-in-c

   See all results for this question

   Should I Change my code to use my own dictionary?

   • If you find a switch statement is in a performance hotspot of your code, and you have measured with a profiler that it has tangible performance impact, then changing your code to use your own dictionary is a reasonable tradeoff for a performance gain.

   c# - In a switch vs dictionary for a value of Func, which is faster and why…

   stackoverflow.com/questions/11617091/in-a-switch-vs-dictionary-for-a-value-of-func-which-is-faster-and-why

   See all results for this question

   Should I use dictionary lookup in net?

   • If you are using .Net, then you do not fret over microseconds. @Jodrell, (continued) If you want to squeeze the most out of your hardware, then you use ASM, C, or C++ in that order. Dictionary lookup in .Net will not kill you. Various signatures of the delegates - that is the strongest point that you made against using a simple dictionary approach.

   C# Store functions in a Dictionary - Stack Overflow

   stackoverflow.com/questions/4233536/c-sharp-store-functions-in-a-dictionary

   See all results for this question

5. stackoverflow.com › questions › 11617091c# - In a switch vs dictionary for a value of Func, which is ...

   stackoverflow.com › questions › 11617091

   • Cached

   Jul 24, 2012 · In general, though, you shouldn't dwell on these compiler nuances too much when writing application code. Switch statements are generally much easier to read and understand than a hash table of function pointers. Switch statements that are big enough to push the compiler into jump table mode are often too big to be humanly readable.

6. web.stanford.edu › class › archiveThree Address Code Examples

   web.stanford.edu › class › archive

   Three Address Code. Three address code (TAC) will be the intermediate representation used in our Decaf compiler. It is essentially a generic assembly language that falls in the lower end of the mid level IRs. Some variant of 2, 3 or 4 address code is fairly commonly used as an IR, since it maps well to most assembly languages.

   • File Size: 343KB

   • Page Count: 8

7. www.geeksforgeeks.org › c-functionsC Functions - GeeksforGeeks

   www.geeksforgeeks.org › c-functions

   • Cached

   Sep 5, 2023 · C Functions. A function in C is a set of statements that when called perform some specific task. It is the basic building block of a C program that provides modularity and code reusability. The programming statements of a function are enclosed within { } braces, having certain meanings and performing certain operations.

8. groups.seas.harvard.edu › courses › cs153CS153: Compilers Lecture 19: Optimization - Harvard University

   groups.seas.harvard.edu › courses › cs153

   Optimal code depends on features not expressed to the programmer. Modern architectures assume optimization. Different kinds of optimizations: Time: improve execution speed. Space: reduce amount of memory needed. Power: lower power consumption (e.g. to extend battery life)

9. www.geeksforgeeks.org › c-lexical-analyser-lexerLexical Analyser in C - GeeksforGeeks

   www.geeksforgeeks.org › c-lexical-analyser-lexer

   • Cached

   Jan 3, 2024 · In C, the lexical analysis phase is the first phase of the compilation process. In this step, the lexical analyzer (also known as the lexer) breaks the code into tokens, which are the smallest individual units in terms of programming. In the lexical analysis phase, we parse the input string, removing the whitespaces.