logging.h

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// ----------------------------------------------------------------------------
// -                        CloudViewer: www.cloudViewer.org                  -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.cloudViewer.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
 
#pragma once
 
#include <glog/logging.h>
 
#include <iostream>
 
#include "util/string.h"
 
// Option checker macros. In contrast to glog, this function does not abort the
// program, but simply returns false on failure.
#define CHECK_OPTION_IMPL(expr) \
    __CheckOptionImpl(__FILE__, __LINE__, (expr), #expr)
#define CHECK_OPTION(expr)                                       \
    if (!__CheckOptionImpl(__FILE__, __LINE__, (expr), #expr)) { \
        return false;                                            \
    }
#define CHECK_OPTION_OP(name, op, val1, val2)                                \
    if (!__CheckOptionOpImpl(__FILE__, __LINE__, (val1 op val2), val1, val2, \
                             #val1, #val2, #op)) {                           \
        return false;                                                        \
    }
#define CHECK_OPTION_EQ(val1, val2) CHECK_OPTION_OP(_EQ, ==, val1, val2)
#define CHECK_OPTION_NE(val1, val2) CHECK_OPTION_OP(_NE, !=, val1, val2)
#define CHECK_OPTION_LE(val1, val2) CHECK_OPTION_OP(_LE, <=, val1, val2)
#define CHECK_OPTION_LT(val1, val2) CHECK_OPTION_OP(_LT, <, val1, val2)
#define CHECK_OPTION_GE(val1, val2) CHECK_OPTION_OP(_GE, >=, val1, val2)
#define CHECK_OPTION_GT(val1, val2) CHECK_OPTION_OP(_GT, >, val1, val2)
 
namespace colmap {
 
// Initialize glog at the beginning of the program.
void InitializeGlog(char** argv);
 
// Implementation
 
const char* __GetConstFileBaseName(const char* file);
 
bool __CheckOptionImpl(const char* file,
                       const int line,
                       const bool result,
                       const char* expr_str);
 
template <typename T1, typename T2>
bool __CheckOptionOpImpl(const char* file,
                         const int line,
                         const bool result,
                         const T1& val1,
                         const T2& val2,
                         const char* val1_str,
                         const char* val2_str,
                         const char* op_str) {
    if (result) {
        return true;
    } else {
        std::cerr
                << StringPrintf(
                           "[WARNING %s:%d] Check failed: %s %s %s (%s vs. %s)",
                           __GetConstFileBaseName(file), line, val1_str, op_str,
                           val2_str, std::to_string(val1).c_str(),
                           std::to_string(val2).c_str())
                << "\n";
        return false;
    }
}
 
}  // namespace colmap