Mercurial > gnulib
view tests/test-strnlen.c @ 40167:c1aa6d1185ea
strtold: Add tests.
* tests/test-strtold.c: New file, based on tests/test-strtod.c.
* modules/strtold-tests: New file.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Wed, 30 Jan 2019 03:53:43 +0100 |
parents | b06060465f09 |
children |
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/* * Copyright (C) 2010-2019 Free Software Foundation, Inc. * Written by Eric Blake * * 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 <https://www.gnu.org/licenses/>. */ #include <config.h> #include <string.h> #include "signature.h" SIGNATURE_CHECK (strnlen, size_t, (char const *, size_t)); #include <stdlib.h> #include "zerosize-ptr.h" #include "macros.h" int main (void) { size_t i; char *page_boundary = (char *) zerosize_ptr (); if (!page_boundary) { page_boundary = malloc (0x1000); ASSERT (page_boundary); page_boundary += 0x1000; } /* Basic behavior tests. */ ASSERT (strnlen ("a", 0) == 0); ASSERT (strnlen ("a", 1) == 1); ASSERT (strnlen ("a", 2) == 1); ASSERT (strnlen ("", 0x100000) == 0); /* Memory fence and alignment testing. */ for (i = 0; i < 512; i++) { char *start = page_boundary - i; size_t j = i; memset (start, 'x', i); do { if (i != j) { start[j] = 0; ASSERT (strnlen (start, i + j) == j); } ASSERT (strnlen (start, i) == j); ASSERT (strnlen (start, j) == j); } while (j--); } return 0; }