std::basic_ios::rdstate(3)

💅 std::basic_ios::rdstate(3) 💅

okay so this page is from the C++ Standard Libary manual, and it's giving “tiny but iconic stream-state check” energy. Let's get into it, bestie 💖

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🎀 NAME 🎀

std::basic_ios::rdstate — literally std::basic_ios::rdstate. That's the name. No notes. iconic 💅

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✨ Synopsis ✨

iostate rdstate() const;

Returns the current stream error state, fr fr 😭

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🫶 Parameters 🫶

(none) — literally none, bestie. nothing to pass, nothing to stress about 💀

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💖 Return value 💖

The return value is the current stream error state. It's a bitmask type and can be a combination of the following constants:

• goodbit — no error
• badbit — irrecoverable stream error
• failbit — input/output operation failed (formatting or extraction error)
• eofbit — associated input sequence has reached end-of-file

like, it can be more than one vibe at once, iykyk 🌈

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🌸 Example 🌸

// Run this code

#include <iostream>
#include <sstream>

int main()
{
    std::ostringstream stream;

    if (stream.rdstate() == std::ios_base::goodbit)
        std::cout << "stream state is goodbit\n";

    stream.setstate(std::ios_base::eofbit);

    // check state is exactly eofbit (no failbit and no badbit)
    if (stream.rdstate() == std::ios_base::eofbit)
        std::cout << "stream state is eofbit\n";
}

Output:

stream state is goodbit
stream state is eofbit

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🔍 See also 🔍

• setstate — sets state flags (public member function)
• clear — modifies state flags (public member function)

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okay that's the whole page, bestie 🫶 — source: http://cppreference.com, version/date: 2024.06.10, page: std::basic_ios::rdstate(3). periodt ✨