1# Copyright (C) 2002-2004, 2006-2018 Free Software Foundation, Inc. 2# This file is free software; the Free Software Foundation 3# gives unlimited permission to copy and/or distribute it, 4# with or without modifications, as long as this notice is preserved. 5 6# Test whether the *printf family of functions supports padding of non-finite 7# values with the 0 flag correctly. (ISO C99 + TC1 + TC2.) See 8# <https://lists.gnu.org/r/bug-gnulib/2007-04/msg00107.html> 9# Result is gl_cv_func_printf_flag_zero. 10 11printf_flag_zero_test = ''' 12#include <stdio.h> 13#include <string.h> 14static char buf[100]; 15static double zero = 0.0; 16int main () 17{ 18 if (sprintf (buf, "%010f", 1.0 / zero, 33, 44, 55) < 0 19 || (strcmp (buf, " inf") != 0 20 && strcmp (buf, " infinity") != 0)) 21 return 1; 22 return 0; 23} 24''' 25 26if not meson.is_cross_build() or meson.has_exe_wrapper() 27 run_result = cc.run(printf_flag_zero_test, 28 name : 'printf supports the zero flag correctly') 29 gl_cv_func_printf_flag_zero = run_result.compiled() and run_result.returncode() == 0 30else 31 if host_system in ['linux', 'android'] 32 gl_cv_func_printf_flag_zero = true 33 elif host_system.startswith ('beos') 34 gl_cv_func_printf_flag_zero = true 35 elif host_system == 'windows' 36 gl_cv_func_printf_flag_zero = false 37 else 38 gl_cv_func_printf_flag_zero = false 39 endif 40endif 41