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 'long double' 7# arguments together with the 'L' size specifier. (ISO C99, POSIX:2001) 8# Result is gl_cv_func_printf_long_double. 9 10printf_long_double_test = ''' 11#include <stdio.h> 12#include <string.h> 13static char buf[10000]; 14int main () 15{ 16 int result = 0; 17 buf[0] = '\0'; 18 if (sprintf (buf, "%Lf %d", 1.75L, 33, 44, 55) < 0 19 || strcmp (buf, "1.750000 33") != 0) 20 result |= 1; 21 buf[0] = '\0'; 22 if (sprintf (buf, "%Le %d", 1.75L, 33, 44, 55) < 0 23 || strcmp (buf, "1.750000e+00 33") != 0) 24 result |= 2; 25 buf[0] = '\0'; 26 if (sprintf (buf, "%Lg %d", 1.75L, 33, 44, 55) < 0 27 || strcmp (buf, "1.75 33") != 0) 28 result |= 4; 29 return result; 30} 31''' 32 33if not meson.is_cross_build() or meson.has_exe_wrapper() 34 run_result = cc.run(printf_long_double_test, 35 name : 'printf supports \'long double\' arguments') 36 gl_cv_func_printf_long_double = run_result.compiled() and run_result.returncode() == 0 37else 38 if host_system.startswith ('beos') 39 gl_cv_func_printf_long_double = false 40 elif host_system == 'windows' 41 # Guess yes on MSVC, no on mingw. 42 if cc.get_id() == 'msvc' or cc.get_id() == 'clang-cl' 43 gl_cv_func_printf_long_double = true 44 else 45 gl_cv_func_printf_long_double = false 46 endif 47 else 48 gl_cv_func_printf_long_double = true 49 endif 50endif 51