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Can't use standard functions like fprintf when using linker to link libraries

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cacb:

--- Quote from: chris on December 22, 2022, 12:35:53 pm ---This code works fine when I don't link any libraries.

--- End quote ---

That's a clue. Make sure those libraries are built with the compiler you are using.

jordi:
You are not using any gsl function in your code. I would remove the include.
Weird but maybe some lib you are including have redefined the printf symbol
Try the next code with the libraries included.

--- Code: ---     #include <stdio.h>
     #include <gsl/gsl_vector.h>
     
     int
     main (void)
     {
       int i;
       gsl_vector * v = gsl_vector_alloc (100);
       
       for (i = 0; i < 100; i++)
         {
           gsl_vector_set (v, i, 1.23 + i);
         }
     
       { 
          FILE * f = fopen ("test.dat", "w");
          gsl_vector_fprintf (f, v, "%.5g");
          fclose (f);
       }
       return 0;
     }


--- End code ---

chris:

--- Quote from: cacb on December 22, 2022, 02:39:57 pm ---
--- Quote from: chris on December 22, 2022, 12:35:53 pm ---This code works fine when I don't link any libraries.

--- End quote ---

That's a clue. Make sure those libraries are built with the compiler you are using.

--- End quote ---

LOL thank you! I'm completely new to using libraries, and followed instructions from stackexchange on how to install the library. The isntructions I followed were for MS Visual Studio. The confusing part for me was that it worked nearly perfectly (for my purposes) in C::B, until it didnt!

I've switched to using VS for now, and it works and prints as you would expect.

Anyone got any good recommendations on resources about what a compiler is... Feeling very out of my depth.

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