pseudo_cpp11

C++11 compatibility layer for old projects.

This will help you to port a C++98 project easily to C++11 and above.

Usage

#include <pseudo_cpp11.hpp>

Keywords for C++98

Some are fake, some are functional, but all are direct compileable with --std=c++11

• explicit // (only fake)
• noexcept // (only functional on clang and gcc)
• override // (only fake)
• final // (only fake)
• nullptr
• constexpr

Macros

Keywords

• DEFAULT as = default; // (only fake)
• DELETE as = delete; // (only fake)

Attributes

• DEPRECATED as [[deprecated]]
• NORETURN as [[noreturn]] // (only functional on Visual Studio)
• NODISCARD as [[nodiscard]] // (only functional on clang and gcc)
• MAYBE_UNUSED as [[maybe_unused]] // (only functional on clang and gcc)
• UNUSED as (void) - not explicit C++11, but to compress compiler warnings until the project convertion is done.

Loop

foreach macro Visual Studio example:

foreach ( const int &_value, container ) {

  std::cout << "Value: " << _value << std::endl;
}

Other example:

foreach ( _value, container ) {

  std::cout << "Value: " << ( *_value ) << std::endl;
}

Not working

This helper is mostly for porting to C++11 and above, so this features will not work within this project:

• auto keyword
• using keyword
• initializer_list
• lambda functions
• variadic templates
• other specific C++11 features, not explicit listed here

User-defined build variables

Inside cmake/env.cmake you will find some user-defined build variables for particular purposes.

Debugging

You can log the verbose build output.

# Debugging of build steps
set(CMAKE_VERBOSE_MAKEFILE ON)

C++ Standard

You can build the example with C++11 and above standard.

# c++ standard - possible: 98, 11, 14, 17
set(CMAKE_CXX_STANDARD 11)

Support

• from Microsoft Visual Studio 2008
• Clang >= 8 (Earlier not tested)
• GCC >= 7 (Earlier not tested)