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By itself, the yes command outputs 'y' or whatever is specified as an argument, followed by a newline repeatedly until stopped by the user or otherwise killed; when piped into a command, it will continue until the pipe breaks (i.e., the program completes its execution).
Download QR code; Print/export ... closed, available to customers, free object code for non-commercial use: ... same as Linux: RT-Thread: Apache 2.0:
PCLinuxOS 2012.02 version was released on February 22, 2012. [12] [13] [14] Later another maintenance release was made on August 22, 2012. Major changes compared to the 2011 release are: Kernel has been updated to version 3.2; KDE version 4.8.2; nVIDIA and ATi fglrx driver support; KDE Settings set to dark by default
For example, hardware timers send interrupts to the CPU at regular intervals. Most operating systems execute a HLT instruction when there is no immediate work to be done, putting the processor into an idle state. In Windows NT, for example, this instruction is run in the "System Idle Process". On x86 processors, the opcode of HLT is 0xF4.
I/O completion port loops run separately from the Message loop, and do not interact with the Message loop out of the box. The "heart" of most Win32 applications is the WinMain() function, which calls GetMessage() in a loop. GetMessage() blocks until a message, or "event", is received (with function PeekMessage() as a non
Loop unrolling, also known as loop unwinding, is a loop transformation technique that attempts to optimize a program's execution speed at the expense of its binary size, which is an approach known as space–time tradeoff. The transformation can be undertaken manually by the programmer or by an optimizing compiler.
Mouse control appears to be supported in the source code, [3] using GPM (a mouse-driver) but many users report Newt and Whiptail not responding to mouse control. [ 4 ] [ 5 ] These restrictions simplify the design of the library as well as the code of programs using it, though they impose limitations on user interface design.
A conditional loop has the potential to become an infinite loop when nothing in the loop's body can affect the outcome of the loop's conditional statement. However, infinite loops can sometimes be used purposely, often with an exit from the loop built into the loop implementation for every computer language , but many share the same basic ...