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  2. c++ - Why is it Called iota? - Stack Overflow

    stackoverflow.com/questions/28411850

    The function is named after the integer function ⍳ from the programming language APL. In APL, the ⍳ function (represented with the ninth letter of the Greek alphabet, iota) is used to create a zero-based array of consecutive, ascending integers of a specified length. You could go further by explaining to the uninitiated that this symbol is ...

  3. std::iota will fill an iterator range with successively incremented values. To answer your specific question, it actually doesn't stand for anything. Iota (pronounced "eye-oh-duh" or "eye-oh-tuh" in English) is a greek letter with mathematical connotations. It is standard in C++11, but not in earlier standards.

  4. iota is not an acronym for something but a word. As others pointed out it is the 9th letter of the Greek alphabet however in english it is also a word with a definition reflective of the Greek letter.

  5. Perhaps more importantly, the array "decays" into a pointer if you pass it to another function, and then you can no longer use std::begin() and std::end() on it; the span can be passed around, so it's more robust. However - std::span is only in the standard beginning with C++20. Before that you can use the span implementation in the gsl-lite ...

  6. go - What's the exact meaning of iota? - Stack Overflow

    stackoverflow.com/questions/68345567

    The spec defines iota's usage in Go (emphasis added): Within a constant declaration, the predeclared identifier iota represents successive untyped integer constants. Its value is the index of the respective ConstSpec in that constant declaration, starting at zero. Note that the index is relative to the ConstSpec, basically meanining the current ...

  7. Efficiency of std::iota in C++? - Stack Overflow

    stackoverflow.com/questions/56697691/efficiency-of-stdiota-in-c

    The answer is always measure yourself. std::iota() might (in the future) benefit from parallelization efforts of the standard library. I saw such things coming in C++ (where new hints can be used for e.g. std::sort() etc.)

  8. Or use the safer version of the function (_itoa_s()) that provides the function with the destination buffer size. Both _itoa() and itoa() resolve to the exact same function in the library down to the same address - there is no difference except in the name. answered Oct 19, 2009 at 5:57. Michael Burr.

  9. Both closed_iota and iota take 2 arguments, a begin value, and an end value, and produce a range of values containing all the values between begin and end. The former generates all values from begin to end inclusive, and the latter does the same, but the last value, i.e. end, is excluded.

  10. c++ - std::iota is very limited - Stack Overflow

    stackoverflow.com/questions/34544665

    However this may fix the problem in the question, I think author was asking about std::iota overload to something like std::iota(std::begin(x), std::end(x), 0, 2) where 2 is a step of iteration - why c++11 does not have one like it. So this question in my opinion is more to c++ standard commitee.

  11. I'd say that the problem is in the old components that weren't accomodated to play well with the ranges. From what I've tested so far, iota_view<long, long> iterators are not recognized as random access by libstd++ on x86_64 because its difference type is 128 bit wide. iota_view<int, int> works apparently fine with the parallel algorithms. –