Guarneri1743

#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>

static uint32_t float_to_bits(float x)
{
	uint32_t u;
	memcpy(&u, &x, sizeof(x));
	return u;

Guarneri1743

In this article we compared different behavior of static, inline and static inline free functions in compiled binary. All the following test was done under g++ 7.1.1 on Linux amd64, ELF64.

Test sources

header.hpp

#pragma once

inline int only_inline() { return 42; }
static int only_static() { return 42; }

Guarneri1743

// RUN: cc -Wall -Wextra %s && ./a.out

#include <assert.h>

#if defined(__GNUC__) || defined(__clang__)
  // Supports 0-10 arguments
  #define VA_NARGS_IMPL(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, N, ...) N
  // ## deletes preceding comma if _VA_ARGS__ is empty (GCC, Clang)
  #define VA_NARGS(...) VA_NARGS_IMPL(_, ## __VA_ARGS__, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0)
#else