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Numeric and Binary Data

Learn how C++ represents numbers and data in memory using binary, decimal, and hexadecimal systems.

Ryan McCombe
Updated
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Questions & Answers

Answers are generated by AI models and may not have been reviewed. Be mindful when running any code on your device.

Unsigned Ints vs std::byte
Why are unsigned integers preferred for representing binary data, even though std::byte exists?
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Int Width and Portability
Why is the width of int not fixed in the C++ standard, and why does it matter for portability?
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Bitwise Operations
How can I perform bitwise operations like AND or OR on variables storing binary data?
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Extract Red Channel
How could I use bitwise operators to extract the red channel value from a uint32_t color variable?
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Check Specific Bit
How would I check if a specific bit is set (equal to 1) within a uint8_t variable?
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Sizeof and Containers
Can I use sizeof with std::string or std::vector? What does the value returned by sizeof represent in this case, given that containers can have variable lengths?
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