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/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef RIL_MCC_H
#define RIL_MCC_H
#include <climits>
#include <cstdio>
#include <string>
namespace ril {
namespace util {
namespace mcc {
/**
* Decode an integer mcc and encode as 3 digit string
*
* @param an integer mcc, its range should be in 0 to 999.
*
* @return string representation of an encoded MCC or an empty string
* if the MCC is not a valid MCC value.
*/
static inline std::string decode(int mcc) {
char mccStr[4] = {0};
if (mcc > 999 || mcc < 0) return "";
snprintf(mccStr, sizeof(mccStr), "%03d", mcc);
return mccStr;
}
// echo -e "#include \"hardware/ril/include/telephony/ril_mcc.h\"\nint main()"\
// "{ return ril::util::mcc::test(); }" > ril_test.cpp \
// && g++ -o /tmp/ril_test -DTEST_RIL_MCC ril_test.cpp; \
// rm ril_test.cpp; /tmp/ril_test && [ $? ] && echo "passed"
#ifdef TEST_RIL_MCC
static int test() {
const struct mcc_ints { const int in; const char * out; } legacy_mccs[] = {
{INT_MAX, ""},
{1, "001"},
{11, "011"},
{111, "111"},
{0, "000"},
{9999, ""},
{-12, ""},
};
for (int i=0; i < sizeof(legacy_mccs) / sizeof(struct mcc_ints); i++) {
if (decode(legacy_mccs[i].in).compare(legacy_mccs[i].out)) return 1;
}
return 0;
}
#endif
}
}
}
#endif /* !defined(RIL_MCC_H) */
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