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c++shadowsunistd.h

Standard POSIX read shadowed by a read method with different signature

I have a C++ File class with read function, that is supposed to read whole contents of a file (just like Python does) into a buffer. However, when I tried to call read function from unistd.h, I get:

file.cpp:21: error: no matching function for call to ‘File::read(int&, char*&, int)’

file.cpp:17: note: candidates are: char* File::read()

What am I doing wrong? These have completely different signatures, why can't I simply call it?

Solution

  • Have you tried being explicit about scope;

    char* File::read()
{
   // Double-colon to get to global scope
   ::read(...);
   // ..
}

    ?