Defensive Programming, Renesas Synergy, Ternary vs if/else and more …

Embedded Bytes Newsletter

Decreasing costs, shortening timelines, improving reliability…

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Dear *|FNAME|*,

When I teach “C Programming for Embedded Systems” I often have students ask which is more efficient, using the ternary operator or if/else statements. They are often looking for guidance and insights as to which construct should be their default. I’ve heard many claim that the ternary operator is more efficient but is this true using a modern toolchain? The results can vary based on toolchain and optimization level but in this issue I dive into an example using an ARM Cortex-M GCC toolchain that will offer a surprising answer to many readers.

Do you consider which C statements and constructs are most efficient for the task at hand? If so do you take code readability and robustness into account in your decision?

I’m looking forward to hearing from you and understanding the challenges face developing your embedded systems!

Best Regards,

Jacob Beningo

[email protected]

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Interested in learning more? Visit our website to find out more about Beningo Embedded, or check out our blog to see our entire article archive – read past articles, search by category, and much more!

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Embedded Bytes #45: What We Do

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