diff options
Diffstat (limited to 'include/telephony/ril_mcc.h')
-rw-r--r-- | include/telephony/ril_mcc.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/include/telephony/ril_mcc.h b/include/telephony/ril_mcc.h new file mode 100644 index 00000000..dc56b126 --- /dev/null +++ b/include/telephony/ril_mcc.h @@ -0,0 +1,71 @@ +/* + * 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) */ |