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/* -*- C++ -*-
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2025 Cppcheck team.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
//---------------------------------------------------------------------------
#ifndef platformH
#define platformH
//---------------------------------------------------------------------------
#include "config.h"
#include "mathlib.h"
#include "standards.h"
#include <cassert>
#include <climits>
#include <cstddef>
#include <cstdint>
#include <stdexcept>
#include <string>
#include <vector>
/// @addtogroup Core
/// @{
namespace tinyxml2 {
class XMLDocument;
}
/**
* @brief Platform settings
*/
class CPPCHECKLIB Platform {
private:
static long long min_value(std::uint8_t bit) {
assert(bit > 0);
if (bit >= 64)
return LLONG_MIN;
return -(1LL << (bit-1));
}
static long long max_value(std::uint8_t bit) {
assert(bit > 0);
if (bit >= 64)
return (~0ULL) >> 1;
return (1LL << (bit-1)) - 1LL;
}
static unsigned long long max_value_unsigned(std::uint8_t bit) {
assert(bit > 0);
if (bit >= 64)
return ~0ULL;
return (1ULL << bit) - 1ULL;
}
/** provides list of defines specified by the limit.h/climits includes */
std::string getLimitsDefines(bool c99) const;
public:
Platform();
bool isIntValue(MathLib::bigint value) const {
return value >= min_value(int_bit) && value <= max_value(int_bit);
}
bool isIntValue(MathLib::biguint value) const {
const unsigned long long intMax = max_value(int_bit);
return value <= intMax;
}
bool isLongValue(MathLib::bigint value) const {
return value >= min_value(long_bit) && value <= max_value(long_bit);
}
bool isLongValue(MathLib::biguint value) const {
const MathLib::biguint longMax = max_value(long_bit);
return value <= longMax;
}
bool isLongLongValue(MathLib::biguint value) const {
const MathLib::biguint longLongMax = max_value(long_long_bit);
return value <= longLongMax;
}
std::uint8_t char_bit; /// bits in char
std::uint8_t short_bit; /// bits in short
std::uint8_t int_bit; /// bits in int
std::uint8_t long_bit; /// bits in long
std::uint8_t long_long_bit; /// bits in long long
/** size of standard types */
std::size_t sizeof_bool;
std::size_t sizeof_short;
std::size_t sizeof_int;
std::size_t sizeof_long;
std::size_t sizeof_long_long;
std::size_t sizeof_float;
std::size_t sizeof_double;
std::size_t sizeof_long_double;
std::size_t sizeof_wchar_t;
std::size_t sizeof_size_t;
std::size_t sizeof_pointer;
char defaultSign; // unsigned:'u', signed:'s', unknown:'\0'
enum Type : std::uint8_t {
Unspecified, // No platform specified
Native, // whatever system this code was compiled on
Win32A,
Win32W,
Win64,
Unix32,
Unix64,
File
};
/** platform type */
Type type;
/** set the platform type for predefined platforms - deprecated use set(const std::string&, std::string&) instead */
bool set(Type t);
/** set the platform type */
bool set(const std::string& platformstr, std::string& errstr, const std::vector<std::string>& paths = {}, bool debug = false);
/**
* load platform file
* @param exename application path
* @param filename platform filename
* @param debug log verbose information about the lookup
* @return returns true if file was loaded successfully
*/
bool loadFromFile(const char exename[], const std::string &filename, bool debug = false);
/** load platform from xml document, primarily for testing */
bool loadFromXmlDocument(const tinyxml2::XMLDocument *doc);
/**
* @brief Returns true if platform type is Windows
* @return true if Windows platform type.
*/
bool isWindows() const {
return type == Type::Win32A ||
type == Type::Win32W ||
type == Type::Win64;
}
const char *toString() const {
return toString(type);
}
static const char *toString(Type pt) {
switch (pt) {
case Type::Unspecified:
return "unspecified";
case Type::Native:
return "native";
case Type::Win32A:
return "win32A";
case Type::Win32W:
return "win32W";
case Type::Win64:
return "win64";
case Type::Unix32:
return "unix32";
case Type::Unix64:
return "unix64";
case Type::File:
return "platformFile";
default:
throw std::runtime_error("unknown platform");
}
}
long long unsignedCharMax() const {
return max_value(char_bit + 1);
}
long long signedCharMax() const {
return max_value(char_bit);
}
long long signedCharMin() const {
return min_value(char_bit);
}
/** provides list of defines specified by the limit.h/climits includes */
std::string getLimitsDefines(Standards::cstd_t cstd) const;
/** provides list of defines specified by the limit.h/climits includes */
std::string getLimitsDefines(Standards::cppstd_t cppstd) const;
};
/// @}
//---------------------------------------------------------------------------
#endif // platformH
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