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Marxism-Fennekinism to Programmer [email protected]English • 2 years ago

Our social interaction in a nutshell

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Our social interaction in a nutshell

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Marxism-Fennekinism to Programmer [email protected]English • 2 years ago
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  • Zagorath
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    31•2 years ago

    Most languages support concatenation of strings using the + operator. The only mainstream languages I can think of that don’t are PHP (which uses “.”) and low-level languages like C & C++.

    • @[email protected]
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      12•2 years ago

      R uses paste0() for some reason

    • Rikudou_Sage
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      9•2 years ago

      C++ does as well, doesn’t it? Though I don’t often use std::string, so I’m not sure. But every other string type I worked with had + overloaded.

      • Zagorath
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        2•2 years ago

        I dunno, I’ve never actually worked in C++, but I tried it out online and it didn’t seem to work.

    • @[email protected]
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      4•2 years ago

      C++ does, but it’s not a very efficient operation. https://en.cppreference.com/w/cpp/string/basic_string/operator%2B

      • @[email protected]
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        3•2 years ago

        Using the C++ standard library beyond the C backwards compatible parts? What devilry is this‽

      • @[email protected]
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        1•2 years ago

        I think your link has a double encoded % at the end: %25

        The correct link is https://en.cppreference.com/w/cpp/string/basic_string/operator2B

      • Zagorath
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        2•
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        2 years ago

        I ran

        #include 
        #include 
        
        int main()
        {
          std::string name;
          std::cout << "you"+"me";
        }
        

        Using cpp.sh, and got the following error:

        main.cpp:7:21: error: invalid operands to binary expression ('const char[4]' and 'const char[3]')
          std::cout << "you"+"me";
                       ~~~~~^~~~~
        1 error generated.
        

        edit: lemmy seems to be determined to convert my less than characters to their HTML entity codes, but the error is meant to point to the “+” sign.

        • @[email protected]
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          1•2 years ago

          This is because your operands are const char[]. That’s not a std::string.

    • VanillaGorilla
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      25•2 years ago

      JavaScript might even concatenate some integers instead of adding them just for shits and giggles.

    • @[email protected]
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      8•2 years ago

      Lua uses ..

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