Pass multiple arguments into std thread

Question

I m asking the  lt thread gt  library in C  11 standard    Say you have a function like    void func1 int a  int b  ObjA c  ObjB d         blahblah implementation    int main int argc  char  argv         std  thread func1    what do do here           How do you pass in all of those arguments into the thread  I tried listing the arguments like    std  thread func1  a b c d     But it complains that there s no such constructor  One way to get around this is defining a struct to package the arguments  but is there another way to do this

User · Answer

If you re getting this  you may have forgotten to put  include  lt thread gt  at the beginning of your file  OP s signature seems like it should work

User · Answer

You literally just pass them in std  thread func1 a b c d   that should have compiled if the objects existed  but it is wrong for another reason  Since there is no object created you cannot join or detach the thread and the program will not work correctly  Since it is a temporary the destructor is immediately called  since the thread is not joined or detached yet std  terminate is called  You could std  join or std  detach it before the temp is destroyed  like std  thread func1 a b c d  join     or detach      This is how it should be done     std  thread t func1 a b c d   t join        You could also detach the thread  read-up on threads if you don t know the difference between joining and detaching

User · Answer

Had the same problem  I was passing a non-const reference of custom class and the constructor complained  some tuple template errors   Replaced the reference with pointer and it worked

[c++] Pass multiple arguments into std::thread

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