f391048a7b
Add a utils::hex() function that simplifies writing hexadecimal values to an ostream. The function handles the '0x' prefix, the field width and the fill character automatically. Use it through the libcamera code base, and add a test. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
53 lines
1.2 KiB
C++
53 lines
1.2 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2018, Google Inc.
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*
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* utils.cpp - Miscellaneous utility tests
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*/
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#include <iostream>
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#include <sstream>
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#include "test.h"
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#include "utils.h"
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using namespace std;
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using namespace libcamera;
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class UtilsTest : public Test
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{
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protected:
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int run()
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{
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std::ostringstream os;
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std::string ref;
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os << utils::hex(static_cast<int32_t>(0x42)) << " ";
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ref += "0x00000042 ";
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os << utils::hex(static_cast<uint32_t>(0x42)) << " ";
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ref += "0x00000042 ";
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os << utils::hex(static_cast<int64_t>(0x42)) << " ";
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ref += "0x0000000000000042 ";
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os << utils::hex(static_cast<uint64_t>(0x42)) << " ";
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ref += "0x0000000000000042 ";
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os << utils::hex(static_cast<int32_t>(0x42), 4) << " ";
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ref += "0x0042 ";
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os << utils::hex(static_cast<uint32_t>(0x42), 1) << " ";
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ref += "0x42 ";
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os << utils::hex(static_cast<int64_t>(0x42), 4) << " ";
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ref += "0x0042 ";
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os << utils::hex(static_cast<uint64_t>(0x42), 1) << " ";
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ref += "0x42 ";
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std::string s = os.str();
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if (s != ref) {
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cerr << "utils::hex() test failed, expected '" << ref
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<< "', got '" << s << "'";
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return TestFail;
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}
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return TestPass;
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}
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};
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TEST_REGISTER(UtilsTest)
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