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    <p>Yes, the C language features a standard library; that is, a number of standard macros, routines and types one can use in his programs, apart from any in the core language itself.</p> <p>In popular implementations, there is a separate library file containing the code for the C standard library. For example, in GNU/Linux environments, the GNU C library (<code>libc</code>) is almost always present. Microsoft provides the <code>msvcrt.dll</code> runtime library for the Windows system, and so on.</p> <p>Also, the C standard library might not be available in freestanding implementations. Sometimes it is possible to compile a program without linking against the C standard library from your system. As an example, the Windows API is well known for behaving as a freestanding C programming environment (although one might need to link against other system libraries specific to Windows).</p> <p>Regarding GCC, the following illustrates briefly the compilation pipeline:</p> <ol> <li>The input source is preprocessed with GNU <code>cpp</code>, resulting in a translation unit. <em>(Actually, as Basile pointed out, nowadays no <code>cpp</code> process is created; the entire preprocessing work is done within <code>cc1</code>. Nevertheless, the resulting behavior is most likely the same as with <code>cpp</code>.)</em></li> <li>The translation unit is then interpreted and compiled to assembly source with GCC <code>cc1</code>;</li> <li>The assembly source is then assembled into object code with GNU <code>as</code>;</li> <li>Finally, object files and libraries are linked together to produce a binary image with GNU <code>ld</code>.</li> </ol> <p>Naturally, each of these steps may be altered or not executed at all depending on the driver options; the above is just a rough explanation of the overall process.</p>
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    1. PODoes the C programming language have a runtime?
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    1. PODoes the C programming language have a runtime?
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    1. COThis is wrong today: with recent GCC (even GCC from the early 2000s), the preprocessing and compilation is done by `cc1` and there is no more any `cpp` process
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      1. USBasile Starynkevitch
    2. COThanks for clarifying. I'll correct the information.
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