search
HomeBackend DevelopmentC++Is the Ternary Operator Faster than if...else in C ?

Is the Ternary Operator Faster than if...else in C  ?

The Conditional Operator ?: vs. if...else: A Performance Comparison

In C , the ternary operator (?) and the if...else statement are both used for conditional execution. However, there is a misconception that the ternary operator is faster than the if...else statement.

Performance Comparison

Contrary to popular belief, the ternary operator is not faster than the if...else statement. Both operators generate equivalent assembly code when compiled. The following C code illustrates this equivalence:

int x = (a > b) ? a : b;

int y;
if (a > b) {
  y = a;
} else {
  y = b;
}

When compiled, these two code blocks will produce the same assembly code, which involves a conditional branch instruction. Therefore, the performance of both operators is the same.

Initialization of Constants

One subtle difference between the ternary operator and the if...else statement is that the ternary operator allows the initialization of a constant variable based on an expression. For example:

const int x = (a <p>This is not possible with the if...else statement. However, it is worth noting that this feature is rarely used in practical programming.</p><p><strong>Conclusion</strong></p><p>While the ternary operator offers a concise syntax for conditional execution, it does not provide any performance benefits over the if...else statement. The choice between these two operators should be based on code readability and personal preference.</p>

The above is the detailed content of Is the Ternary Operator Faster than if...else in C ?. For more information, please follow other related articles on the PHP Chinese website!

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
The Continued Use of C  : Reasons for Its EnduranceThe Continued Use of C : Reasons for Its EnduranceApr 11, 2025 am 12:02 AM

C Reasons for continuous use include its high performance, wide application and evolving characteristics. 1) High-efficiency performance: C performs excellently in system programming and high-performance computing by directly manipulating memory and hardware. 2) Widely used: shine in the fields of game development, embedded systems, etc. 3) Continuous evolution: Since its release in 1983, C has continued to add new features to maintain its competitiveness.

The Future of C   and XML: Emerging Trends and TechnologiesThe Future of C and XML: Emerging Trends and TechnologiesApr 10, 2025 am 09:28 AM

The future development trends of C and XML are: 1) C will introduce new features such as modules, concepts and coroutines through the C 20 and C 23 standards to improve programming efficiency and security; 2) XML will continue to occupy an important position in data exchange and configuration files, but will face the challenges of JSON and YAML, and will develop in a more concise and easy-to-parse direction, such as the improvements of XMLSchema1.1 and XPath3.1.

Modern C   Design Patterns: Building Scalable and Maintainable SoftwareModern C Design Patterns: Building Scalable and Maintainable SoftwareApr 09, 2025 am 12:06 AM

The modern C design model uses new features of C 11 and beyond to help build more flexible and efficient software. 1) Use lambda expressions and std::function to simplify observer pattern. 2) Optimize performance through mobile semantics and perfect forwarding. 3) Intelligent pointers ensure type safety and resource management.

C   Multithreading and Concurrency: Mastering Parallel ProgrammingC Multithreading and Concurrency: Mastering Parallel ProgrammingApr 08, 2025 am 12:10 AM

C The core concepts of multithreading and concurrent programming include thread creation and management, synchronization and mutual exclusion, conditional variables, thread pooling, asynchronous programming, common errors and debugging techniques, and performance optimization and best practices. 1) Create threads using the std::thread class. The example shows how to create and wait for the thread to complete. 2) Synchronize and mutual exclusion to use std::mutex and std::lock_guard to protect shared resources and avoid data competition. 3) Condition variables realize communication and synchronization between threads through std::condition_variable. 4) The thread pool example shows how to use the ThreadPool class to process tasks in parallel to improve efficiency. 5) Asynchronous programming uses std::as

C   Deep Dive: Mastering Memory Management, Pointers, and TemplatesC Deep Dive: Mastering Memory Management, Pointers, and TemplatesApr 07, 2025 am 12:11 AM

C's memory management, pointers and templates are core features. 1. Memory management manually allocates and releases memory through new and deletes, and pay attention to the difference between heap and stack. 2. Pointers allow direct operation of memory addresses, and use them with caution. Smart pointers can simplify management. 3. Template implements generic programming, improves code reusability and flexibility, and needs to understand type derivation and specialization.

C   and System Programming: Low-Level Control and Hardware InteractionC and System Programming: Low-Level Control and Hardware InteractionApr 06, 2025 am 12:06 AM

C is suitable for system programming and hardware interaction because it provides control capabilities close to hardware and powerful features of object-oriented programming. 1)C Through low-level features such as pointer, memory management and bit operation, efficient system-level operation can be achieved. 2) Hardware interaction is implemented through device drivers, and C can write these drivers to handle communication with hardware devices.

Game Development with C  : Building High-Performance Games and SimulationsGame Development with C : Building High-Performance Games and SimulationsApr 05, 2025 am 12:11 AM

C is suitable for building high-performance gaming and simulation systems because it provides close to hardware control and efficient performance. 1) Memory management: Manual control reduces fragmentation and improves performance. 2) Compilation-time optimization: Inline functions and loop expansion improve running speed. 3) Low-level operations: Direct access to hardware, optimize graphics and physical computing.

The truth behind the C language file operation problemThe truth behind the C language file operation problemApr 04, 2025 am 11:24 AM

The truth about file operation problems: file opening failed: insufficient permissions, wrong paths, and file occupied. Data writing failed: the buffer is full, the file is not writable, and the disk space is insufficient. Other FAQs: slow file traversal, incorrect text file encoding, and binary file reading errors.

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
3 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
3 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
3 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
WWE 2K25: How To Unlock Everything In MyRise
3 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

VSCode Windows 64-bit Download

VSCode Windows 64-bit Download

A free and powerful IDE editor launched by Microsoft

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

SecLists

SecLists

SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

SublimeText3 English version

SublimeText3 English version

Recommended: Win version, supports code prompts!

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools