定义
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DEFINE_bool: boolean DEFINE_int32: 32-bit integer DEFINE_int64: 64-bit integer DEFINE_uint64: unsigned 64-bit integer DEFINE_double: double DEFINE_string: C++string |
使用
- 引入gflags文件夹
- 定义下面的宏
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#pragma once #include <gflags/gflags.h> namespace hk0910 { DEFINE_string(input, "-input", "the input dir path."); DEFINE_string(output, "-output", "the output dir path."); DEFINE_int32(prepare, 1, "a flag."); #define PARAM_COUNT 4 } // namespace hk |
- 使用
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#include <iostream> #include "macro.h" int main(int argc, char** argv) { if (argc != PARAM_COUNT) { return 0; } google::ParseCommandLineFlags(&argc, &argv, false); std::cout << hk0910::FLAGS_input << std::endl; std::cout << hk0910::FLAGS_output<< std::endl; // the file path // the flag if (hk0910::FLAGS_prepare == 0) { } else if (hk0910::FLAGS_prepare == 1) { } else { return 0; } // google::ShutDownCommandLineFlags(); return 0; } |
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