From 4380647e79bd80af1ebf6191c2d6629855ccf556 Mon Sep 17 00:00:00 2001 From: Siva Chandra Date: Fri, 4 Oct 2019 17:30:54 +0000 Subject: Add few docs and implementation of strcpy and strcat. Summary: This patch illustrates some of the features like modularity we want in the new libc. Few other ideas like different kinds of testing, redirectors etc are not yet present. Reviewers: dlj, hfinkel, theraven, jfb, alexshap, jdoerfert Subscribers: mgorny, dexonsmith, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D67867 llvm-svn: 373764 --- libc/src/string/strcpy/strcpy_test.cpp | 40 ++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 libc/src/string/strcpy/strcpy_test.cpp (limited to 'libc/src/string/strcpy/strcpy_test.cpp') diff --git a/libc/src/string/strcpy/strcpy_test.cpp b/libc/src/string/strcpy/strcpy_test.cpp new file mode 100644 index 00000000000..48f55f24649 --- /dev/null +++ b/libc/src/string/strcpy/strcpy_test.cpp @@ -0,0 +1,40 @@ +//===----------------------- Unittests for strcpy -------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#include + +#include "src/string/strcpy/strcpy.h" +#include "gtest/gtest.h" + +TEST(StrCpyTest, EmptyDest) { + std::string abc = "abc"; + char *dest = new char[4]; + + char *result = __llvm_libc::strcpy(dest, abc.c_str()); + ASSERT_EQ(dest, result); + ASSERT_EQ(std::string(dest), abc); + ASSERT_EQ(std::string(dest).size(), abc.size()); + + delete[] dest; +} + +TEST(StrCpyTest, OffsetDest) { + std::string abc = "abc"; + char *dest = new char[7]; + + dest[0] = 'x'; + dest[1] = 'y'; + dest[2] = 'z'; + + char *result = __llvm_libc::strcpy(dest + 3, abc.c_str()); + ASSERT_EQ(dest + 3, result); + ASSERT_EQ(std::string(dest), std::string("xyz") + abc); + ASSERT_EQ(std::string(dest).size(), abc.size() + 3); + + delete[] dest; +} -- cgit v1.2.3