The Abstract Non-Action Interface (ANI). Zero overhead. Maximum idempotency.
A cutting-edge library designed to do absolutely nothing — with impeccable consistency.

libnothing provides a state-of-the-art non-action runtime, enabling developers to seamlessly integrate pure emptiness into any codebase. By guaranteeing complete behavioral absence, libnothing offers unmatched predictability, stability, and existential serenity.

• Guaranteed Non-Functionality – Every call is a no-op by design.
• Zero Dependencies – Nothing depends on nothing.
• Deterministic Outcomes – It always does the same thing. Which is nothing.
• Battle-Tested Idempotency – Invoke functions once or a million times: no effect.
• High Performance – Nothing is faster than doing nothing.
• Cross-Platform – Same behavior on Linux, macOS, and Windows.

Typical build commands:

gcc -c libnothing.c -o libnothing.o
ar rcs libnothing.a libnothing.o

Or with CMake:

add_library(nothing STATIC libnothing.c)
target_include_directories(nothing PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})

#include <stdio.h>
#include "libnothing.h"

int main() {
    nothing_context ctx;

    nothing_init(&ctx);
    nothing_do(&ctx);
    int status = nothing_status();
    nothing_shutdown(&ctx);

    printf("libnothing result: %d\n", status); // always 0
    return 0;
}

Observable output:

libnothing result: 0

Which is correct, because nothing happened.

Initializes the non-action environment. Does nothing.

Performs an abstract non-action. Does nothing.

Returns a fixed zero-status. Does nothing.

Shuts down the nothing environment. Still does nothing.

Because sometimes the most important part of a system is the part that does not exist.