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| <h1 class="settitle">The GNU C Library</h1> |
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| <h2 class="chapter">1 Introduction</h2> |
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| <!-- %MENU% Purpose of the GNU C Library --> |
| <p>The C language provides no built-in facilities for performing such |
| common operations as input/output, memory management, string |
| manipulation, and the like. Instead, these facilities are defined |
| in a standard <dfn>library</dfn>, which you compile and link with your |
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| The GNU C library, described in this document, defines all of the |
| library functions that are specified by the ISO C<!-- /@w --> standard, as well as |
| additional features specific to POSIX and other derivatives of the Unix |
| operating system, and extensions specific to the GNU system. |
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| of the GNU library. We have mentioned which features belong to which |
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| C library is based. |
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