29#if !defined __cplusplus || defined _GLIBCXX_INCLUDE_NEXT_C_HEADERS
30# include_next <stdlib.h>
33#ifndef _GLIBCXX_STDLIB_H
34#define _GLIBCXX_STDLIB_H 1
41#if __cplusplus >= 201103L
42# ifdef _GLIBCXX_HAVE_AT_QUICK_EXIT
43 using std::at_quick_exit;
45# ifdef _GLIBCXX_HAVE_QUICK_EXIT
46 using std::quick_exit;
48# if _GLIBCXX_USE_C99_STDLIB
69#ifdef _GLIBCXX_HAVE_MBSTATE_T
82#ifdef _GLIBCXX_USE_WCHAR_T
_Tp abs(const complex< _Tp > &)
Return magnitude of z.