dominicpoeschko/string_constant

#string_constant

C++ implementation of compile time evaluated strings. This library provides basic compile time strings as well as features for fmt and std::string_view.

Usage

The library can be included into your existing CMake project by using git submodules and adding the following lines to your CMakeLists.txt:

add_subdirectory(string_constant)
target_link_libraries(${target_name} string_constant::string_constant)

If you are not using git submodules and want to use the fetch content feature of CMake, just add the following lines to your CMakeLists.txt:

include(FetchContent)
FetchContent_Declare(
    string_constant
    GIT_REPOSITORY git@github.com:dominicpoeschko/string_constant.git
    GIT_TAG master
)
FetchContent_MakeAvailable(string_constant)
target_link_libraries(${target_name} string_constant::string_constant)

Examples

To build the examples go into the examples directory and run the following commands:

mkdir build
cd build
cmake ..
make

The most basic usage can be found in examples/basic_usage.cpp, which covers basic string manipulation as well as printing through std::cout and fmt::print.

#include "string_constant/string_constant.hpp"
#include <fmt/format.h>
#include <iostream>


int main(){
    using namespace sc::literals;
    static constexpr auto foo = "foobar"_sc;
    static constexpr auto bar = "this is"_sc;
    static constexpr auto foobar = foo + " "_sc +  bar;

    static_assert(foobar == "foobar this is"_sc);
    
    std::cout << foo << " + " << bar << " = "
            << foobar << std::endl;
    
    fmt::print("{} + {} = {}\n", foo, bar, foobar);
    return 0;
}

For the usage with compile-time format and the usage with std::string_view see the other examples.