120689e466
Functions like isalpha / tolower can operate on chars internally. This allows us to get rid of unnecessary casts and open a way to creating wchar_t overloads with the same names (e.g. for isalpha), that would simplify templated code for conversion functions (see 315dfe5865962d8a3d60e21d1fffce5214fe54ef). Add the int->char converstion to public entrypoints implementation instead. We also need to introduce bounds check on the input argument values - these functions' behavior is unspecified if the argument is neither EOF nor fits in "unsigned char" range, but the tests we've had verified that they always return false for small negative values. To preserve this behavior, cover it explicitly.
86 lines
2.1 KiB
C++
86 lines
2.1 KiB
C++
//===-- MemoryMatcher.cpp ---------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "MemoryMatcher.h"
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#include "src/__support/ctype_utils.h"
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#include "src/__support/macros/config.h"
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#include "test/UnitTest/Test.h"
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#if LIBC_TEST_HAS_MATCHERS()
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using LIBC_NAMESPACE::testing::tlog;
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namespace LIBC_NAMESPACE_DECL {
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namespace testing {
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template <typename T>
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bool equals(const cpp::span<T> &Span1, const cpp::span<T> &Span2,
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bool &mismatch_size, size_t &mismatch_index) {
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if (Span1.size() != Span2.size()) {
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mismatch_size = true;
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return false;
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}
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for (size_t Index = 0; Index < Span1.size(); ++Index)
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if (Span1[Index] != Span2[Index]) {
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mismatch_index = Index;
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return false;
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}
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return true;
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}
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bool MemoryMatcher::match(MemoryView actualValue) {
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actual = actualValue;
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return equals(expected, actual, mismatch_size, mismatch_index);
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}
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static void display(char C) {
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const auto print = [](unsigned char i) {
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tlog << LIBC_NAMESPACE::internal::toupper(
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LIBC_NAMESPACE::internal::int_to_b36_char(i));
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};
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print(static_cast<unsigned char>(C) / 16);
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print(static_cast<unsigned char>(C) & 15);
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}
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static void display(MemoryView View) {
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for (auto C : View) {
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tlog << ' ';
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display(C);
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}
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}
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void MemoryMatcher::explainError() {
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if (mismatch_size) {
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tlog << "Size mismatch :";
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tlog << "expected : ";
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tlog << expected.size();
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tlog << '\n';
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tlog << "actual : ";
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tlog << actual.size();
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tlog << '\n';
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} else {
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tlog << "Mismatch at position : ";
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tlog << mismatch_index;
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tlog << " / ";
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tlog << expected.size();
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tlog << "\n";
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tlog << "expected :";
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display(expected);
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tlog << '\n';
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tlog << "actual :";
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display(actual);
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tlog << '\n';
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}
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}
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} // namespace testing
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} // namespace LIBC_NAMESPACE_DECL
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#endif // LIBC_TEST_HAS_MATCHERS()
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