title: Documents about C language specs
body: <p>I'm wondering about the difference between what is defined by the several standards of the C language and the things that every compilers implements in a different way from the others, i want to really understand what the official specs of the C language are: there are some official docs? </p>
  
  <p>I'm looking for technical stuff, not a thread on the internet, some good pdfs maybe; something that can describe everything happens with the memory management, the allocation, the lenght and the encoding of the variables, etc etc ...</p>
  
  <p>I have the official manual from K&amp;R but it's not really about what i am interested to, it's more on the "programmer side" i want something more technical and affermative.</p>
  
  <p>PS
  the C language have an official website for reference?</p>