Function nstd_sys::io::stdin::nstd_io_stdin_read

source · 
#[no_mangle]
pub unsafe extern "C" fn nstd_io_stdin_read(
    handle: &mut NSTDStdin,
    buffer: &mut NSTDSliceMut
) -> NSTDIOResult
Available on crate feature io only.
Expand description

Reads some data from stdin into a byte slice buffer.

Note

This function will return an error code of NSTD_IO_ERROR_INVALID_INPUT if the buffer’s element size is not 1.

Parameters:

  • NSTDStdin *handle - A handle to the standard input stream.

  • NSTDSliceMut *buffer - The buffer to fill with data from stdin.

Returns

NSTDIOResult read - The number of bytes read from handle on success, or the I/O operation error code on failure.

Safety

buffer’s data must be valid for writes.