W3Schools
w3schools.com › c › c_conditions.php
C If ... Else Conditions
You can use these conditions to perform different actions for different decisions.
GeeksforGeeks
geeksforgeeks.org › c language › c-if-else-statement
C if else Statement - GeeksforGeeks
The if else in C is an extension of the if statement which not only allows the program to execute one block of code if a condition is true, but also a different block if the condition is false.
Published October 18, 2025
Is there an equivalent to the "for ... else" Python loop in C++? - Stack Overflow
Python has an interesting for statement which lets you specify an else clause. In a construct like this one: for i in foo: if bar(i): break else: baz() the else clause is executed after t... More on stackoverflow.com
While loop with else statement - C++ Forum
Forgive me, for I am only a noob. This is what I've been working on for a couple days. Just started messing with programming this past week, reading tid-bits here and there to put something together. My only issue is in the second set of if else statements. (where it asks "How much?") The final ... More on cplusplus.com
Coding for 30 years: Just realized "else if" is not a language construct in C/C++ and Javascript
I can highly recommend anyone going to university to take a course in language and compiler construction. It will make you realize a lot of interresting things like this. More on reddit.com
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August 27, 2023When to use If/Else, and when to use Switch?
The answer is subjective and (IMO) depends on the language. With C, if you have more than a couple cases switch is almost always the correct choice... there really isn't anything better. The higher up you go in the languages superior choices may show themselves (like a bunch of options in an array with the functions to call for example). More on reddit.com
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September 5, 2024Videos
00:58
Lesson 7 : C Programming - Introduction to C Programming: ...
20:44
Decision Making Statements in C Programming | if | if-else | if ...
C Programming Tutorial 4 - Conditional Statements (if/else if/else) ...
17:40
How To Use If and Else Statements in C [C Tutorial] - YouTube
15:36
Programmation C - 4. Les conditions if else (Partie 1) - YouTube
W3Schools
w3schools.com › c › c_conditions_elseif.php
C The else if Statement
C Examples C Real-Life Examples C Exercises C Quiz C Code Challenges C Practice Problems C Compiler C Syllabus C Study Plan C Interview Q&A ... Use the else if statement to specify a new condition to test if the first condition is false.
GeeksforGeeks
geeksforgeeks.org › c language › decision-making-in-c
Decision Making in C (if , if..else, Nested if, if-else-if ) - GeeksforGeeks
The block of code following the else statement is executed as the condition present in the if statement is false.
Published 3 weeks ago
Programiz
programiz.com › c-programming › c-if-else-statement
C if...else Statement
When the user enters 7, the test expression number%2==0 is evaluated to false. Hence, the statement inside the body of else is executed.
TutorialsPoint
tutorialspoint.com › cprogramming › if_else_statement_in_c.htm
C - The if-else Statement
However, when there are more than ... in the else part, you need to tell the compiler that they need to be treated as a compound statement. In the code given below, the tax on employees income is computed. If the income is below 10000, the tax is applicable at 10%. For the income ...
Quora
quora.com › C-Is-it-possible-to-use-while-else
C : Is it possible to use while else? - Quora
Answer (1 of 6): So the logic required here would be to enter a loop or do something else. [code]do { if (!X) { ... } break; ... }while(X); [/code]So in this case if X is not true code A is performed, otherwise B is performed in a loop. [code]if ( X) { A ... } else while ...
Top answer 1 of 15
47
If you don't mind using goto, it can also be achieved in following way. This solutions saves from an extra if check and higher scope flag to track if loop is properly completed.
for(int i = 0; i < foo; i++)
if(bar(i))
goto m_label;
baz();
m_label:
...
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42
A simpler way to express your actual logic is with std::none_of:
if (std::none_of(std::begin(foo), std::end(foo), bar))
baz();
If the range proposal for C++17 gets accepted, hopefully this will simplify to:
if (std::none_of(foo, bar)) baz();
Study.com
study.com › computer science courses › computer science 111: programming in c
IF, ELSE, & IF-ELSE Statements in C Programming - Lesson | Study.com
August 24, 2018 - C programming is a computer language designed to serve general purposes. Learn about IF, ELSE, and IF-ELSE statements in C programming. Review decision making and examples to gain understanding.
ScholarHat
scholarhat.com › home
Conditional Statements in C: if, if..else, Nested if
The if statement checks if the user input is odd or even. If the number is even, the statement inside the if block gets printed. If the given input is odd, nothing gets printed. ... It is an extension of the if statement. Here, there is an if block and an else block. When one wants to print output for both cases - true and false, use the if-else statement.
Published July 31, 2025
freeCodeCamp
freecodecamp.org › news › if-statement-in-c-how-to-use-if-else-statements-in-the-c-programming-language
If Statement in C – How to use If-Else Statements in the C Programming Language
June 13, 2022 - However, if that condition evaluates to false, the code inside the else block will execute. The else keyword is the solution for when the if condition is false and the code inside the if block doesn't run.
freeCodeCamp
freecodecamp.org › news › if-statements-in-c
If...Else Statement in C Explained
January 21, 2020 - If that condition evaluates to true, the code inside the else...if statement's curly braces is run. We might want a bit of code to run if something is not true, or if two things are true. For that we have logical operators:
Codeforwin
codeforwin.org › home › if else programming exercises and solutions in c
If else programming exercises and solutions in C - Codeforwin
July 20, 2025 - if...else is a branching statement. It is used to take an action based on some condition. For example – if user inputs valid account number and pin, then allow money withdrawal.
Microsoft Learn
learn.microsoft.com › en-us › cpp › preprocessor › hash-if-hash-elif-hash-else-and-hash-endif-directives-c-cpp
#if, #elif, #else, and #endif directives (C/C++) | Microsoft Learn
The preprocessor selects a single text item by evaluating the constant expression following each #if or #elif directive until it finds a true (nonzero) constant expression. It selects all text (including other preprocessor directives beginning with #) up to its associated #elif, #else, or #endif.
Cplusplus
cplusplus.com › forum › beginner › 206676
While loop with else statement - C++ Forum
This is the only way currently to enter the final else statement. What happens when you use a letter? The value of much is not set. Because much is an int (an automatic POD type), its contents are undefined when you start. And when entering a letter, it will retain its last value. Also, and most importantly, at that point, cin is in an error state. ... Thank you all for the replies, I'll research your suggestions and see what I come up with.
Reddit
reddit.com › r/learnprogramming › coding for 30 years: just realized "else if" is not a language construct in c/c++ and javascript
r/learnprogramming on Reddit: Coding for 30 years: Just realized "else if" is not a language construct in C/C++ and Javascript
August 27, 2023 -
Edit: I messed up the title. Should read "else if" is not a keyword.
Original:
Because I first learned Basic's "elseif" keyword, I always assumed C, C#, Javascript's "else if" was just a variant of Basic's keyword with an extra space.
Nope.
Those languages only have if/else. There is no language keyword elseif or "else if".
The reason they don't need it is because the "else" is designed to run whatever statement or compound statement that is after the else. And in the case we care about, "else if(){}" the "if() {}" is treated as a compound statement. It's no different than log(100); or { if(isHundred ) log(100); else logNan();}
So while C/C++, Javascript can "else if" it's really just an else and an if. "else if" is nothing special.
Basic and Python lua require elseif because they don't have the single statement or compound statement rule and every else must be matched to an endif or end. Edit: Python uses elif to reduce indentation.
Anyway, apologies if this was obvious. It's really a distinction without a difference but I guess it goes to show that we are always learning and new concepts are always clicking even after decades of using a language.
Reddit
reddit.com › r/c_programming › when to use if/else, and when to use switch?
r/C_Programming on Reddit: When to use If/Else, and when to use Switch?
September 5, 2024 -
Is there a consensus on where it's acceptable to just use switch statements? Like a certain number of conditions?
Thanks
Top answer 1 of 16
19
The answer is subjective and (IMO) depends on the language. With C, if you have more than a couple cases switch is almost always the correct choice... there really isn't anything better. The higher up you go in the languages superior choices may show themselves (like a bunch of options in an array with the functions to call for example).
2 of 16
14
Use a switch when you're branching based on a small set of discrete constant integer values: int opt = get_menu_option(); switch (opt) { case 1: ... break; case 2: ... break; default: ... } Use if/else for everything else; comparisons, range checks, etc.: if ( p ) // or p != NULL // do something if ( x >= 0 && x < 100 ) // do something
BeginnersBook
beginnersbook.com › 2014 › 01 › c-if-else-statement-example
C – If..else, Nested If..else and else..if Statement with example
September 23, 2017 - In this program user is asked to enter the age and based on the input, the if..else statement checks whether the entered age is greater than or equal to 18. If this condition meet then display message “You are eligible for voting”, however if the condition doesn’t meet then display a different message “You are not eligible for voting”.
Top answer 1 of 3
22
Obviously...
if (map.empty())
{
// do stuff if map is empty
}
else for (auto it = map.begin(); it != map.end(); ++it)
{
// do iteration on stuff if it is not
}
By the way, since we are talking C++11 here, you can use this syntax:
if (map.empty())
{
// do stuff if map is empty
}
else for (auto it : map)
{
// do iteration on stuff if it is not
}
2 of 3
5
If you want more crazy control flow in C++, you can write it in C++11:
template<class R>bool empty(R const& r)
{
using std::begin; using std::end;
return begin(r)==end(r);
}
template<class Container, class Body, class Else>
void for_else( Container&& c, Body&& b, Else&& e ) {
if (empty(c)) std::forward<Else>(e)();
else for ( auto&& i : std::forward<Container>(c) )
b(std::forward<decltype(i)>(i));
}
for_else( map, & {
// loop body
}, [&]{
// else body
});
but I'd advise against it.
Quora
quora.com › How-can-we-use-if-else-in-C
How can we use “if else” in C++? - Quora
Answer (1 of 4): Don’t learn programming fundamentals with system languages, let alone one as complicated as C++ where you must learn five things for one concept — one thing for the price of five. Find a good modern language. https://www.quora.com/I-am-an-accountant-and-I-am-planning-t...