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1. Top results related to c syntax for loop

   • c# syntax question - for loop and end of line

     Top Answer

     Answered Dec 06, 2010 · 3 votes

     By convention c# and all c like languages when presented with a for loop (or and if statement etc) will run the line immediately after. Personally I don't like writing code like this, i feel it lacks readability.

     To clarify we can add curly braces to denote scope

     for ( int i = 0; i < argsin.Length; i++ ){ Console.WriteLine("Argument: {0}", argsin[i]);}Console.ReadLine();return -1;

     now what the for loop executes is clearly defined (and if we wanted to do more in our loop we would add the extra instructions in between the curly braces).

     edit: The reason for the semi colons as you define your for loop is that each part of that definition is a separate statement.

     int i = 0; //creates an integer i and sets its value to 0i < argsin.Length; sets our comparison operation to define when the loop endsi++ //what to do at the end in this case increment i by 1

     Each needs to be treated independent of the others and as the semi colon denotes the end of a statement in c# (which is why each line ends in it) we use it to break up the statements so the compiler can read it.

     While the 2 semicolons are mandatory the arguments are not we could if we wanted change it to be this.

     int i = 0;for (;;){ if(i>=argsin.Length){ break; } Console.WriteLine("Argument: {0}", argsin[i]); i++;}

     This is functionally identical to the way you wrote it but I've moved all the logic out of the for statement to its equivalent position inside (or outside in the case of defining i) the loop

     Other Answers

     Answered Dec 06, 2010 · 7 votes

     Your code is formatted a bit strangely, if you reformat it as this I think it's easier to understand:

     using System;-class test{ static int Main(string[] argsin) { for (int i = 0; i < argsin.Length; i++) { Console.WriteLine("Argument: {0}", argsin[i]); } Console.ReadLine(); return -1; }}

     So as you can see int i = 0; i < argsin.Length; i++ are not 3 different lines, they are all just arguments to the for loop.

     And adding the { and } makes it easier to see what lines of code are inside the for loop.

     Other Answers

     Answered Dec 06, 2010 · 4 votes

     I will try to explain the loop by comparing to VB syntax.

     In C#: for (int i = 0; i < 5; i++)

     In VB: For i = 0 To 4

     The i = 0 part is the same in both, so I guess it's clear - this is used to initialize the loop iterator.

     The i < 5 part in C# becomes 0 to 4 in VB.... you can think of this as though VB is doing a "shortcut", but the meaning in both is the same: that is the loop condition, i.e. what is the condition that the loop will keep running, in this case the loop will keep running as long as i is less then 5.

     And finally, the i++ part which is required in C# to tell "what will happen to the iterator after each iteration?" is not needed in good old friendly VB that will simply increment it by 1 for you, always - by default.

     Why having semicolon after each part of the loop? Because each part has its own meaning and usage so the compiler must know how to separate the parts when building the final code. Why not having semicolon after the i++ part? Same reason that you don't have comma after last argument passed to function e.g. Console.WriteLine("Argument: {0}", argsin[i], );

     About the loop having no "block" only one line, it was explained in the other answers, rule of thumb is that C# allow single line blocks to appear without the brackets.

     Check all answers on Stack Overflow

     1/5

   • C++ for loop short syntax

     Top Answer

     Answered Jul 13, 2016 · 0 votes

     If you assume that all values are integers, something like this might just work:

     #define MYFOR(i,a,b) for (int i = (a); i != (b); i = (a)<(b)? i+1 : i-1)-

     Then use is this way:

     MYFOR(i, 0, 10) printf("%d ", i);MYFOR(i, 5, 0) printf("%d ", i);

     Check all answers on Stack Overflow

     2/5

   • For loop Syntax in C

     Top Answer

     Answered Jun 16, 2016 · 3 votes

     The definitions of for statement in N1570 6.8.5 Iteration statements is:

     for ( expression opt ; expression opt ; expression opt ) statement for ( declaration expression opt ; expression opt ) statement

     Arbitrary expressions are allowed to all of the three fields, so of course expression --index is allowed, too.

     Check all answers on Stack Overflow

     3/5

   • C program to check syntax of 'for' loop

     As defined by C standards, the for loop syntax is:

     -for (initialisation; condition; increment/decrement) ...

     Syntactically, there should be two semicolons, one opening parenthesis, one closing parenthesis, and correct spelling of “for”. Hence, to check only the syntax of for loop, what a compiler does is check the following conditions:

     • Only “for” is written, and not “For”, “FOR”, “foR” or any of its variants.
     • Total statement consists of two semicolons “;” before the closing parenthesis “)” ends.

     Examples:

     -Input : for (i = 10; i < 20 i++) Output : Semicolon ErrorInput : for(i = 10; i < 20; i++Output : Closing parenthesis absent at end

     Code –

     #include <stdio.h> #include <stdlib.h> #include <string.h>   //array to copy first three characters of string str char arr[3];    void isCorrect(char *str) {           //semicolon, bracket1, bracket2 are used          //to count frequencies of     //';', '(', and ')' respectively flag is set to 1 when an error is found else no error...

     Check all answers on Geeksforgeeks

     4/5

   • Syntax for a for loop in ruby

     Top Answer

     Answered Jan 09, 2010 · 121 votes

     array.each do |element| element.do_stuffend-

     or

     for element in array do element.do_stuffend

     If you need index, you can use this:

     array.each_with_index do |element,index| element.do_stuff(index)end

     Other Answers

     Answered Dec 06, 2010 · 7 votes

     Your code is formatted a bit strangely, if you reformat it as this I think it's easier to understand:

     using System;class test{ static int Main(string[] argsin) { for (int i = 0; i < argsin.Length; i++) { Console.WriteLine("Argument: {0}", argsin[i]); } Console.ReadLine(); return -1; }}

     So as you can see int i = 0; i < argsin.Length; i++ are not 3 different lines, they are all just arguments to the for loop.

     And adding the { and } makes it easier to see what lines of code are inside the for loop.

     Other Answers

     Answered Dec 06, 2010 · 4 votes

     I will try to explain the loop by comparing to VB syntax.

     In C#: for (int i = 0; i < 5; i++)

     In VB: For i = 0 To 4

     The i = 0 part is the same in both, so I guess it's clear - this is used to initialize the loop iterator.

     The i < 5 part in C# becomes 0 to 4 in VB.... you can think of this as though VB is doing a "shortcut", but the meaning in both is the same: that is the loop condition, i.e. what is the condition that the loop will keep running, in this case the loop will keep running as long as i is less then 5.

     And finally, the i++ part which is required in C# to tell "what will happen to the iterator after each iteration?" is not needed in good old friendly VB that will simply increment it by 1 for you, always - by default.

     Why having semicolon after each part of the loop? Because each part has its own meaning and usage so the compiler must know how to separate the parts when building the final code. Why not having semicolon after the i++ part? Same reason that you don't have comma after last argument passed to function e.g. Console.WriteLine("Argument: {0}", argsin[i], );

     About the loop having no "block" only one line, it was explained in the other answers, rule of thumb is that C# allow single line blocks to appear without the brackets.

     Check all answers on Stack Overflow

     5/5

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2. www.programiz.com › c-programming › c-for-loopC for Loop (With Examples) - Programiz

   www.programiz.com › c-programming › c-for-loop

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   for Loop. The syntax of the for loop is: for (initializationStatement; testExpression; updateStatement) { // statements inside the body of loop }

3. www.w3schools.com › c › c_for_loopC For Loop - W3Schools

   www.w3schools.com › c › c_for_loop

   • Cached

   Syntax. for (expression 1; expression 2; expression 3) {. // code block to be executed. } Expression 1 is executed (one time) before the execution of the code block. Expression 2 defines the condition for executing the code block. Expression 3 is executed (every time) after the code block has been executed.

   Code sample

   for (statement 1;statement 2;statement 3) {

     // code block to be executed

   }

   See more on w3schools

4. www.geeksforgeeks.org › c-for-loopC for Loop - GeeksforGeeks

   www.geeksforgeeks.org › c-for-loop

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   Jun 28, 2023 · Syntax of for Loop. for( initialization; check/test expression; updation ) { . // body consisting of multiple statements. } Structure of for Loop.

5. www.freecodecamp.org › news › for-loops-in-cFor Loops in C – Explained with Code Examples

   www.freecodecamp.org › news › for-loops-in-c

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   Nov 3, 2021 · C for Loop Syntax and How it Works. In this section, you'll learn the basic syntax of for loops in C. The general syntax to use the for loop is shown below: for(initialize; check_condition; update) { //do this. } In the above syntax: initialize is the initialization statement – the loop control variable is initialized here.

6. www.geeksforgeeks.org › for-loop-syntaxFor loop Syntax - GeeksforGeeks

   www.geeksforgeeks.org › for-loop-syntax

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   Feb 14, 2024 · For loop Syntax in C/C++: Syntax: for (initialization; condition; update) { // Code block to be executed repeatedly as long as the condition is true } Explanation of the Syntax: In C and C++, the for loop is initialized with an initial condition, followed by a loop condition, and an increment or decrement operation.

7. www.tutorialspoint.com › cprogramming › c_for_loopFor Loop in C - Online Tutorials Library

   www.tutorialspoint.com › cprogramming › c_for_loop

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   The syntax of the for loop in C programming language is −. for ( init; condition; increment){ statement( s); } Control Flow of a For Loop. Here is how the control flows in a "for" loop −. The init step is executed first, and only once. This step allows you to declare and initialize any loop control variables.

8. People also ask

   What is the syntax of a for loop in C programming language?

   • The syntax of the for loop in C programming language is − Here is how the control flows in a "for" loop − The init step is executed first, and only once. This step allows you to declare and initialize any loop control variables. You are not required to put a statement here, as long as a semicolon appears. Next, the condition is evaluated.

   For Loop in C - Online Tutorials Library

   www.tutorialspoint.com/cprogramming/c_for_loop.htm

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   What is a for loop in C/C++?

   • After executing the code block, the loop performs the increment or decrement operation. The loop then returns to the loop header and re-evaluates the condition. If the condition remains true, the process continues; otherwise, the loop terminates. Implementation of For loop Syntax in C/C++: Syntax:

   For loop Syntax - GeeksforGeeks

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   What is a for loop in Java?

   • It is commonly used when you know how many times you want to execute a block of code. The general syntax of for loop varies slightly depending on the programming language, but it typically consists of three main components: initialization, condition, and increment (or decrement).

   For loop in Programming - GeeksforGeeks

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   What are the components of a for loop?

   • The general syntax of for loop varies slightly depending on the programming language, but it typically consists of three main components: initialization, condition, and increment (or decrement). // Code to be executed repeatedly Here’s a basic overview of how a for loop works:

   For loop in Programming - GeeksforGeeks

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   What is a for loop in JavaScript?

   • The for loop is in itself a form of an entry-controlled loop. Unlike the while loop and do…while loop, the for loop contains the initialization, condition, and updating statements as part of its syntax. It is mainly used to traverse arrays, vectors, and other data structures. // body consisting of multiple statements

   C for Loop - GeeksforGeeks

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   What is a basic for loop?

   • The basic for loop is the most common type, used for iterating over a range of values or executing a block of code a fixed number of times. It consists of an initialization, condition, and increment (or decrement) statement. 2.

   For loop in Programming - GeeksforGeeks

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9. www.geeksforgeeks.org › for-loop-in-programmingFor loop in Programming - GeeksforGeeks

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   May 17, 2024 · The general syntax of for loop varies slightly depending on the programming language, but it typically consists of three main components: initialization, condition, and increment (or decrement). for (initialization; condition; increment/decrement) {. // Code to be executed repeatedly.