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| <h3 class="section">7.5 Standard Locales</h3> |
| |
| <p>The only locale names you can count on finding on all operating systems |
| are these three standard ones: |
| |
| <dl> |
| <dt><code>"C"</code><dd>This is the standard C locale. The attributes and behavior it provides |
| are specified in the ISO C<!-- /@w --> standard. When your program starts up, it |
| initially uses this locale by default. |
| |
| <br><dt><code>"POSIX"</code><dd>This is the standard POSIX locale. Currently, it is an alias for the |
| standard C locale. |
| |
| <br><dt><code>""</code><dd>The empty name says to select a locale based on environment variables. |
| See <a href="Locale-Categories.html#Locale-Categories">Locale Categories</a>. |
| </dl> |
| |
| <p>Defining and installing named locales is normally a responsibility of |
| the system administrator at your site (or the person who installed the |
| GNU C library). It is also possible for the user to create private |
| locales. All this will be discussed later when describing the tool to |
| do so. |
| <!-- (@pxref{Building Locale Files}). --> |
| |
| <p>If your program needs to use something other than the ‘<samp><span class="samp">C</span></samp>’ locale, |
| it will be more portable if you use whatever locale the user specifies |
| with the environment, rather than trying to specify some non-standard |
| locale explicitly by name. Remember, different machines might have |
| different sets of locales installed. |
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