C++ provides the <iomanip> header for controlling how data appears when printed to standard output. These manipulators give you precise control over formatting, alignment, precision, and radix. Basic Manipulators The most common manipulators are persistent (they remain active until changed) or stateless (they apply once and reset). Width and Alignment: #include <iostream> #include <iomanip> int…
iOS 7 redesigned the Calendar app with a new interface, and finding the list view (a chronological list of all events) isn’t immediately obvious. Here’s how to access it and make the most of the Calendar app. Access List View in iOS 7 Open the Calendar app Tap the list icon (three horizontal lines with…
Chrome on iOS implements aggressive caching to improve browsing performance, but this can prevent you from seeing the latest versions of pages, stylesheets, and scripts. Unlike Safari’s convenient long-press refresh button, Chrome’s cache management is less intuitive. The Nuclear Option: Clear All Cache The most straightforward approach is clearing all cached data: Open Chrome Tap…
iTunes backups are stored in device-specific directories. The location depends on your operating system: macOS: ~/Library/Application Support/MobileSync/Backup/ Windows: %APPDATA%\Apple Computer\MobileSync\Backup\ On Windows, the easiest way to navigate there is to press Win + R, type %appdata% and hit Enter, then navigate to Apple Computer\MobileSync\Backup\. Understanding iTunes Backup Files iTunes stores backups as a collection of…
The common claim that cin is significantly slower than scanf in C++ is partially true, but only when comparing default configurations. The reality is more nuanced. Why cin Can Be Slower by Default By default, C++ streams maintain synchronization with C stdio streams (stdin, stdout, stderr). This synchronization requires additional overhead because the library must…
The most reliable way to keep your iPhone contacts synchronized with Google is through CardDAV, Google’s contact synchronization protocol. This works on modern iOS versions and automatically syncs changes in both directions. Using Native iOS CardDAV Setup Navigate to Settings > Mail > Accounts > Add Account: Select Other at the bottom of the account…
Your iPhone’s touchscreen can serve as a remote input device for your Linux desktop or laptop. Here are the most practical approaches. WiFi Mouse Method The WiFi Mouse application lets you control your Linux system’s cursor and clicks from your iPhone over a local network. Setup: Install the iPhone app: Download WiFi Mouse from the…
iPhone’s Photos app doesn’t display EXIF metadata by default, but the timestamp information is embedded in every photo. You need to access the EXIF data to see when a photo was actually taken. Using the Photos App (Built-in) Starting with iOS 15+, Apple added some native EXIF viewing directly in the Photos app: Open the…
iOS automatically pauses video playback when you lock your device to save battery and comply with app guidelines. If you want to listen to audio from a video while your screen is locked — say, watching a music video or podcast while walking — you need to enable background audio mode in your player app….
Taking photos with iPhone earphone remotes provides a practical way to reduce hand shake and camera blur, especially useful for self-portraits, group photos, or situations where you need stable hands-free operation. How to Trigger the Camera Press the volume-up button on your earphone remote to capture a photo. This works with the native Camera app…
Firefox Sync lets you keep bookmarks, passwords, history, open tabs, and settings synchronized across all your devices. It’s built on Mozilla’s infrastructure and doesn’t require a separate account beyond your Firefox account. Prerequisites Firefox 22 or later (current versions are 2024+) A Mozilla Firefox Account Devices running Windows, macOS, Linux, iOS, or Android Initial Setup…
iPhones have built-in emoji support that doesn’t require any third-party apps. The emoji keyboard is part of iOS and can be enabled directly through system settings. Enable the Emoji Keyboard Open Settings → General → Keyboard → Keyboards Tap Add New Keyboard Select Emoji from the list Tap Done Once enabled, you can switch to…
Call forwarding redirects incoming calls to another number when you’re unavailable or without coverage. It’s a carrier-level feature managed through iOS Settings, but actual support and behavior depend entirely on your carrier’s implementation. Enable call forwarding Open Settings → Phone Tap Call Forwarding Toggle the switch to On Enter the phone number where calls should…
MKV files encoded with AC3 or DTS audio won’t play sound on most iOS and Android devices. These are proprietary formats with licensing restrictions—mobile players either don’t support them or refuse to decode them by default. The video plays fine, but you get silence. The solution is straightforward: re-encode the audio track to AAC or…
If you’re using an iPhone set to English but living outside the US, you’ve probably noticed US holidays cluttering your Calendar app. This happens because iOS ties holiday calendars directly to your region setting — not your language preference. Why US Holidays Appear by Default The Calendar app automatically subscribes to holidays based on your…
Playing YouTube audio in the background on iPhone is restricted by design—the official YouTube app only supports it with a Premium subscription. Here are the legitimate approaches and their tradeoffs. Browser Method (Safari/Firefox) The most common workaround uses Safari or Firefox to trigger iOS media controls: Open Safari and navigate to youtube.com (or youtube-nocookie.com) Play…
Free VPNs on iOS have legitimate uses—testing geolocation-dependent content, accessing region-locked resources, or bypassing network restrictions. But understand the tradeoffs: free providers often log traffic, inject ads, sell bandwidth, or disappear without notice. Use free VPNs only for non-sensitive browsing. For actual security work or traveling to high-risk regions, a paid provider with a documented…
Sharing internet from a Windows PC to an iPhone via USB is possible but requires careful network configuration. This is less common than tethering the other direction, but useful when you need a stable wired connection without draining your phone’s battery. Prerequisites Windows 10 or Windows 11 iPhone with iOS 12 or later USB-A to…
WhatsApp doesn’t have a native iPad or iPod Touch app, but you can access your messages through WhatsApp Web, which works reliably on any tablet with a browser. Here’s how to set it up and what to know about using it. Setting Up WhatsApp Web on iPad WhatsApp Web requires an active WhatsApp account on…
iOS doesn’t expose SOCKS proxy settings in the Settings UI, but it supports Proxy Auto-Config (PAC) files natively. This lets you route iOS traffic through an SSH tunnel on a Linux/Unix host without installing a VPN app. Prerequisites iOS device (iPhone/iPad) on WiFi Linux/Unix host (same network or internet-accessible) with SSH access Web server to…