Menu
When I compile a program with #include
where can I see the contents of that file, and also since that file contains declarations, where can I see the actual code used in those functions?
Is it open to everyone or is it not available to the public?
691
In Unix-like systems, the traditional place for the basic system libraries is /lib/ , with many additional libraries are found in /usr/lib/ , sometimes in sub-directories. Furthermore, locally built libraries are traditionally placed in /usr/local/lib/ .
You should already have the sources in your compiler installation. If you are using an IDE with a "jump to include file" command, select any STL header and jump to it. If you are using some kind of UNIX, look in /usr/include/c++ . See where that STL header includes other headers and recurse :v) .
A library in C is a collection of header files, exposed for use by other programs. The library therefore consists of an interface expressed in a . h file (named the "header") and an implementation expressed in a . c file.
The C standard library provides macros, type definitions and functions for tasks such as string handling, mathematical computations, input/output processing, memory management, and several other operating system services.
The actual code is in the platform-specific standard libraries that come with your compiler, you can see it by looking at the standard library implementation source.
Here's the documentation (and source) for libstdc++ by GNU (it comes with gcc): http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/index.html.
Download the source from one of these mirrors: http://gcc.gnu.org/mirrors.html
192
Generally the #included file is readable, but the library it implements is generally not readable. The include files on a mac are in /usr/include/c++.
The library code depends on the compiler. For Gnu C++ used in linux and Mac you can definitely see the code. You might have to download it. It is available at http://gcc.gnu.org/libstdc++/
I don't think Windows C++ library code is available.
33
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
