Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>Seems to be for locale support on my box:</p> <pre><code>$ cat whytime.cc #define _TIME_H_ #include &lt;iostream&gt; int main() { std::cout &lt;&lt; "hello, world" &lt;&lt; std::endl; return 0; } $ g++ -Wall -Werror -Wextra -ansi -o whytime whytime.cc &amp;&amp; ./whytime In file included from /usr/include/c++/4.2.1/cwchar:52, from /usr/include/c++/4.2.1/bits/postypes.h:46, from /usr/include/c++/4.2.1/iosfwd:49, from /usr/include/c++/4.2.1/ios:43, from /usr/include/c++/4.2.1/ostream:45, from /usr/include/c++/4.2.1/iostream:45, from whytime.cc:2: /usr/include/c++/4.2.1/ctime:66: error: ‘::clock_t’ has not been declared /usr/include/c++/4.2.1/ctime:68: error: ‘::tm’ has not been declared /usr/include/c++/4.2.1/ctime:70: error: ‘::clock’ has not been declared /usr/include/c++/4.2.1/ctime:71: error: ‘::difftime’ has not been declared /usr/include/c++/4.2.1/ctime:72: error: ‘::mktime’ has not been declared /usr/include/c++/4.2.1/ctime:73: error: ‘::time’ has not been declared /usr/include/c++/4.2.1/ctime:74: error: ‘::asctime’ has not been declared /usr/include/c++/4.2.1/ctime:75: error: ‘::ctime’ has not been declared /usr/include/c++/4.2.1/ctime:76: error: ‘::gmtime’ has not been declared /usr/include/c++/4.2.1/ctime:77: error: ‘::localtime’ has not been declared /usr/include/c++/4.2.1/ctime:78: error: ‘::strftime’ has not been declared In file included from /usr/include/c++/4.2.1/locale:46, from /usr/include/c++/4.2.1/bits/ostream.tcc:46, from /usr/include/c++/4.2.1/ostream:572, from /usr/include/c++/4.2.1/iostream:45, from whytime.cc:2: /usr/include/c++/4.2.1/bits/locale_facets.tcc: In member function ‘_InIter std::time_get&lt;_CharT, _InIter&gt;::_M_extract_via_format(_InIter, _InIter, std::ios_base&amp;, std::_Ios_Iostate&amp;, tm*, const _CharT*) const’: /usr/include/c++/4.2.1/bits/locale_facets.tcc:1839: error: invalid use of incomplete type ‘struct tm’ /usr/include/wchar.h:152: error: forward declaration of ‘struct tm’ /usr/include/c++/4.2.1/bits/locale_facets.tcc:1846: error: invalid use of incomplete type ‘struct tm’ /usr/include/wchar.h:152: error: forward declaration of ‘struct tm’ /usr/include/c++/4.2.1/bits/locale_facets.tcc:1854: error: invalid use of incomplete type ‘struct tm’ /usr/include/wchar.h:152: error: forward declaration of ‘struct tm’ /usr/include/c++/4.2.1/bits/locale_facets.tcc:1861: error: invalid use of incomplete type ‘struct tm’ /usr/include/wchar.h:152: error: forward declaration of ‘struct tm’ /usr/include/c++/4.2.1/bits/locale_facets.tcc:1873: error: invalid use of incomplete type ‘struct tm’ /usr/include/wchar.h:152: error: forward declaration of ‘struct tm’ /usr/include/c++/4.2.1/bits/locale_facets.tcc:1880: error: invalid use of incomplete type ‘struct tm’ /usr/include/wchar.h:152: error: forward declaration of ‘struct tm’ /usr/include/c++/4.2.1/bits/locale_facets.tcc:1883: error: invalid use of incomplete type ‘struct tm’ /usr/include/wchar.h:152: error: forward declaration of ‘struct tm’ /usr/include/c++/4.2.1/bits/locale_facets.tcc:1895: error: invalid use of incomplete type ‘struct tm’ /usr/include/wchar.h:152: error: forward declaration of ‘struct tm’ /usr/include/c++/4.2.1/bits/locale_facets.tcc:1900: error: invalid use of incomplete type ‘struct tm’ /usr/include/wchar.h:152: error: forward declaration of ‘struct tm’ /usr/include/c++/4.2.1/bits/locale_facets.tcc:1908: error: invalid use of incomplete type ‘struct tm’ /usr/include/wchar.h:152: error: forward declaration of ‘struct tm’ /usr/include/c++/4.2.1/bits/locale_facets.tcc:1912: error: invalid use of incomplete type ‘struct tm’ /usr/include/wchar.h:152: error: forward declaration of ‘struct tm’ /usr/include/c++/4.2.1/bits/locale_facets.tcc:1932: error: invalid use of incomplete type ‘struct tm’ /usr/include/wchar.h:152: error: forward declaration of ‘struct tm’ /usr/include/c++/4.2.1/bits/locale_facets.tcc:1968: error: invalid use of incomplete type ‘struct tm’ /usr/include/wchar.h:152: error: forward declaration of ‘struct tm’ /usr/include/c++/4.2.1/bits/locale_facets.tcc:1976: error: invalid use of incomplete type ‘struct tm’ /usr/include/wchar.h:152: error: forward declaration of ‘struct tm’ /usr/include/c++/4.2.1/bits/locale_facets.tcc: In member function ‘virtual _InIter std::time_get&lt;_CharT, _InIter&gt;::do_get_weekday(_InIter, _InIter, std::ios_base&amp;, std::_Ios_Iostate&amp;, tm*) const’: /usr/include/c++/4.2.1/bits/locale_facets.tcc:2210: error: invalid use of incomplete type ‘struct tm’ /usr/include/wchar.h:152: error: forward declaration of ‘struct tm’ /usr/include/c++/4.2.1/bits/locale_facets.tcc: In member function ‘virtual _InIter std::time_get&lt;_CharT, _InIter&gt;::do_get_monthname(_InIter, _InIter, std::ios_base&amp;, std::_Ios_Iostate&amp;, tm*) const’: /usr/include/c++/4.2.1/bits/locale_facets.tcc:2259: error: invalid use of incomplete type ‘struct tm’ /usr/include/wchar.h:152: error: forward declaration of ‘struct tm’ /usr/include/c++/4.2.1/bits/locale_facets.tcc: In member function ‘virtual _InIter std::time_get&lt;_CharT, _InIter&gt;::do_get_year(_InIter, _InIter, std::ios_base&amp;, std::_Ios_Iostate&amp;, tm*) const’: /usr/include/c++/4.2.1/bits/locale_facets.tcc:2288: error: invalid use of incomplete type ‘struct tm’ /usr/include/wchar.h:152: error: forward declaration of ‘struct tm’ </code></pre>
    singulars
    1. This table or related slice is empty.
    1. POWhy does iostream include time.h?
      singulars
      1. PTQuestion
    1. PTAnswer
    1. This table or related slice is empty.
    1. USphs
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. COgood trick, but I don't get your error
      singulars
      1. PO
      1. USRuggero Turra
    2. COBy defining `time.h`'s header guard, we force its inclusion to do nothing. Presumably whatever includes it will also use it soon after, and the resulting compile errors will catch the includer red-handed. For me, that seems to be `/usr/include/c++/4.2.1/locale` brought in by `ostream`. One should remember that this only shows one includer, there may be others.
      singulars
      1. PO
      1. USphs
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload