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fmt library

Programming / cpp / libraries

{fmt} is an open-source formatting library providing a fast and safe alternative to C stdio and C++ iostreams.more

install
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sudo apt install libfmt-dev

Simple Demo

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#include <fmt/core.h>
#include <iostream>


int main() {
    fmt::print("Hello, world!\n");
    fmt::print("Hello, {}!\n", "world");
    fmt::print("The answer is {}.\n", 42);
    fmt::print("Hex: {:#x}, Oct: {:#o}\n", 255, 255);
    fmt::print("Pi is approximately {:.2f}\n", 3.14159);
    fmt::print("Binary: {:#b}\n", 42);
    fmt::print("{1} {0}\n", "world", "Hello");

    std::string data = fmt::format("Formatted number: {:.3f}", 3.14159);
    std::cout << data << std::endl;
    return 0;
}

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cmake_minimum_required(VERSION 3.10)

# Set the project name
project(CppTutorial)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED True)


find_package(fmt REQUIRED)

add_executable(fmt_demo hello.cpp)
target_link_libraries(fmt_demo PRIVATE fmt::fmt)