devxlogo

<fstream> Open Modes

Why Trust Us

The library defines the following open modes and file attributes:

 ios::app // appendios::ate // open and seek to file's endios::binary // binary mode I/O (as opposed to text mode)ios::in // open for readios::out // open for writeios::trunc // truncate file to 0 length


You may combine several flags by using the bitwise OR operator:

 ofstream logfile(






Charlie has over a decade of experience in website administration and technology management. As the site admin, he oversees all technical aspects of running a high-traffic online platform, ensuring optimal performance, security, and user experience.
See also  How Engineering Leaders Spot Weak Proposals
Disclosure

About Our Editorial Process

At DevX, we’re dedicated to tech entrepreneurship. Our team closely follows industry shifts, new products, AI breakthroughs, technology trends, and funding announcements. Articles undergo thorough editing to ensure accuracy and clarity, reflecting DevX’s style and supporting entrepreneurs in the tech sphere.

See our full editorial policy.

Show More