/* Test of c_dtoastr() function. Copyright (C) 2020-2023 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . */ #include #include "ftoastr.h" #include #include #include #include "macros.h" int main (int argc, char *argv[]) { /* configure should already have checked that the locale is supported. */ if (setlocale (LC_ALL, "") == NULL) return 1; /* Test behaviour of snprintf() as a "control group". (We should be running in a locale where ',' is the decimal point.) */ { char s[16]; snprintf (s, sizeof s, "%#.0f", 1.0); if (!strcmp (s, "1.")) { /* Skip the test, since we're not in a useful locale for testing. */ return 77; } ASSERT (!strcmp (s, "1,")); } /* Test behaviour of c_dtoastr(). It should always use '.' as the decimal point. */ { char buf[DBL_BUFSIZE_BOUND]; c_dtoastr (buf, sizeof buf, 0, 0, 0.1); ASSERT (!strcmp (buf, "0.1")); } return 0; }