how to print coloured text in c and c++

I decided to make this blog as I always need to find how to print coloured text, so this is my solution to it

# C++

# Code

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#define ANSI_BEGIN "\x1B["

namespace AnsiColour {
    const char *red = ANSI_BEGIN "31m";
    const char *green = ANSI_BEGIN "32m";
    const char *yellow = ANSI_BEGIN "33m";
    const char *blue = ANSI_BEGIN "34m";
    const char *magenta = ANSI_BEGIN "35m";
    const char *cyan = ANSI_BEGIN "36m";
    const char *white = ANSI_BEGIN "37m";
} // namespace AnsiColour

namespace AnsiEffect {
    const char *bold = ANSI_BEGIN "1m";
    const char *reset = ANSI_BEGIN "0m";
    const char *underline = ANSI_BEGIN "4m";
} // namespace AnsiEffect

# Example usage

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std::cout << AnsiColour::blue << AnsiEffect::bold
    << "Hello world" << AnsiEffect::reset << '\n';

# C

# Code

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#define ANSI_BEGIN "\x1B["

const char *CLR_RED = ANSI_BEGIN "31m";
const char *CLR_GREEN = ANSI_BEGIN "32m";
const char *CLR_YELLOW = ANSI_BEGIN "33m";
const char *CLR_BLUE = ANSI_BEGIN "34m";
const char *CLR_MAGENTA = ANSI_BEGIN "35m";
const char *CLR_CYAN = ANSI_BEGIN "36m";
const char *CLR_WHITE = ANSI_BEGIN "37m";

const char *EFF_BOLD = ANSI_BEGIN "1m";
const char *EFF_RESET = ANSI_BEGIN "0m";
const char *EFF_UNDERLINE = ANSI_BEGIN "4m";

# Example usage

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printf("%s%sHello world%s\n", CLR_BLUE, EFF_BOLD, EFF_RESET);