-/* Copyright (c) 2015-2017. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2015-2023. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#ifndef SIMGRID_XBT_STRING_HPP
#define SIMGRID_XBT_STRING_HPP
-#include <simgrid_config.h>
+#include "xbt/base.h"
#include <cstdarg>
#include <cstdlib>
#include <string>
-#if SIMGRID_HAVE_MC
-
-#include <algorithm>
-#include <cstddef>
-#include <cstring>
-#include <iterator>
-#include <stdexcept>
-
-#include <xbt/sysdep.h>
-
-#endif
-
namespace simgrid {
namespace xbt {
-#if SIMGRID_HAVE_MC
-
-/** POD structure representation of a string
- */
-struct string_data {
- char* data;
- std::size_t len;
-};
-
-/** A std::string-like with well-known representation
- *
- * HACK, this is a (incomplete) replacement for `std::string`.
- * It has a fixed POD representation (`simgrid::xbt::string_data`)
- * which can be used to easily read the string content from another
- * process.
- *
- * The internal representation of a `std::string` is private.
- * We could add some code to read this for a given implementation.
- * However, even if we focus on GNU libstdc++ with Itanium ABI
- * GNU libstdc++ currently has two different ABIs
- *
- * * the pre-C++11 is a pointer to a ref-counted
- * string-representation (with support for COW);
- *
- * * the [C++11-conforming implementation](https://gcc.gnu.org/gcc-5/changes.html)
- * does not use refcouting/COW but has a small string optimization.
- */
-XBT_PUBLIC_CLASS string : private string_data {
- static const char NUL;
-public:
- // Types
- typedef std::size_t size_type;
- typedef std::ptrdiff_t difference_type;
- typedef char& reference;
- typedef const char& const_reference;
- typedef char* pointer;
- typedef const char* const_pointer;
- typedef char* iterator;
- typedef const char* const_iterator;
-
- // Dtor
- ~string()
- {
- if (string_data::data != &NUL)
- delete[] string_data::data;
- }
-
- // Ctors
- string(const char* s, size_t size)
- {
- if (size == 0) {
- string_data::len = 0;
- string_data::data = const_cast<char*>(&NUL);
- } else {
- string_data::len = size;
- string_data::data = new char[string_data::len + 1];
- std::copy_n(s, string_data::len, string_data::data);
- string_data::data[string_data::len] = '\0';
- }
- }
- string() : string (const_cast<char*>(&NUL), 0) {}
- string(const char* s) : string(s, strlen(s)) {}
- string(string const& s) : string(s.c_str(), s.size()) {}
- string(string&& s)
- {
- string_data::len = s.string_data::len;
- string_data::data = s.string_data::data;
- s.string_data::len = 0;
- s.string_data::data = const_cast<char*>(&NUL);
- }
- string(std::string const& s) : string(s.c_str(), s.size()) {}
-
- // Assign
- void assign(const char* s, size_t size)
- {
- if (string_data::data != &NUL) {
- delete[] string_data::data;
- string_data::data = nullptr;
- string_data::len = 0;
- }
- if (size != 0) {
- string_data::len = size;
- string_data::data = new char[string_data::len + 1];
- std::copy_n(s, string_data::len, string_data::data);
- string_data::data[string_data::len] = '\0';
- }
- }
-
- // Copy
- string& operator=(const char* s)
- {
- assign(s, std::strlen(s));
- return *this;
- }
- string& operator=(string const& s)
- {
- assign(s.c_str(), s.size());
- return *this;
- }
- string& operator=(std::string const& s)
- {
- assign(s.c_str(), s.size());
- return *this;
- }
-
- // Capacity
- size_t size() const { return len; }
- size_t length() const { return len; }
- bool empty() const { return len != 0; }
- void shrink_to_fit() {}
-
- // Alement access
- char* data() { return string_data::data; }
- const char* data() const { return string_data::data; }
- char* c_str() { return string_data::data; }
- const char* c_str() const { return string_data::data; };
- reference at(size_type i)
- {
- if (i >= size())
- throw std::out_of_range("Out of range");
- return data()[i];
- }
- const_reference at(size_type i) const
- {
- if (i >= size())
- throw std::out_of_range("Out of range");
- return data()[i];
- }
- reference operator[](size_type i)
- {
- return data()[i];
- }
- const_reference operator[](size_type i) const
- {
- return data()[i];
- }
- // Conversion
- static string_data& to_string_data(string& s) { return s; }
- operator std::string() const { return std::string(this->c_str(), this->size()); }
-
- // Iterators
- iterator begin() { return data(); }
- iterator end() { return data() + size(); }
- const_iterator begin() const { return data(); }
- const_iterator end() const { return data() + size(); }
- const_iterator cbegin() const { return data(); }
- const_iterator cend() const { return data() + size(); }
- // (Missing, reverse iterators)
-
- // Operations
- void clear()
- {
- string_data::len = 0;
- string_data::data = const_cast<char*>(&NUL);
- }
-
- bool equals(const char* data, std::size_t len) const
- {
- return this->size() == len
- && std::memcmp(this->c_str(), data, len) == 0;
- }
-
- bool operator==(string const& that) const
- {
- return this->equals(that.c_str(), that.size());
- }
- bool operator==(std::string const& that) const
- {
- return this->equals(that.c_str(), that.size());
- }
- bool operator==(const char* that) const
- {
- return this->equals(that, std::strlen(that));
- }
-
- template<class X>
- bool operator!=(X const& that) const
- {
- return not (*this == that);
- }
-
- // Compare:
- int compare(const char* data, std::size_t len) const
- {
- size_t n = std::min(this->size(), len);
- int res = memcmp(this->c_str(), data, n);
- if (res != 0)
- return res;
- else if (this->size() == len)
- return 0;
- else if (this->size() < len)
- return -1;
- else
- return 1;
- }
- int compare(string const& that) const
- {
- return this->compare(that.c_str(), that.size());
- }
- int compare(std::string const& that) const
- {
- return this->compare(that.c_str(), that.size());
- }
- int compare(const char* that) const
- {
- return this->compare(that, std::strlen(that));
- }
-
- // Define < <= >= > in term of compare():
- template<class X>
- bool operator<(X const& that) const
- {
- return this->compare(that) < 0;
- }
- template<class X>
- bool operator<=(X const& that) const
- {
- return this->compare(that) <= 0;
- }
- template<class X>
- bool operator>(X const& that) const
- {
- return this->compare(that) > 0;
- }
- template<class X>
- bool operator>=(X const& that) const
- {
- return this->compare(that) >= 0;
- }
-};
-
-inline
-bool operator==(std::string const& a, string const& b)
-{
- return b == a;
-}
-inline
-bool operator!=(std::string const& a, string const& b)
-{
- return b != a;
-}
-inline
-bool operator<(std::string const& a, string const& b)
-{
- return b > a;
-}
-inline
-bool operator<=(std::string const& a, string const& b)
-{
- return b >= a;
-}
-inline
-bool operator>(std::string const& a, string const& b)
-{
- return b < a;
-}
-inline
-bool operator>=(std::string const& a, string const& b)
-{
- return b <= a;
-}
-
-#else
-
-typedef std::string string;
-
-#endif
-
/** Create a C++ string from a C-style format
*
* @ingroup XBT_str
-*/
-std::string string_printf(const char *fmt, ...);
+ */
+XBT_PUBLIC std::string string_printf(const char* fmt, ...) XBT_ATTRIB_PRINTF(1, 2);
/** Create a C++ string from a C-style format
*
* @ingroup XBT_str
-*/
-std::string string_vprintf(const char *fmt, va_list ap);
+ */
+XBT_PUBLIC std::string string_vprintf(const char* fmt, va_list ap) XBT_ATTRIB_PRINTF(1, 0);
+} // namespace xbt
}
-}
-
-#endif
+#endif
\ No newline at end of file
