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Viewing changes to m4/stl_hash.m4

  • Committer: Padraig O'Sullivan
  • Date: 2009-09-13 01:03:01 UTC
  • mto: (1126.9.2 captain-20090915-01)
  • mto: This revision was merged to the branch mainline in revision 1133.
  • Revision ID: osullivan.padraig@gmail.com-20090913010301-tcvvezipx1124acy
Added calls to the dtrace delete begin/end probes.

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m4/stl_hash.m4
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# prints messages itself, so we have to do the message-printing ourselves
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# via AC_MSG_CHECKING + AC_MSG_RESULT.  (TODO(csilvers): can we cache?)
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AC_DEFUN([PANDORA_CXX_STL_HASH],
 
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AC_DEFUN([AC_CXX_STL_HASH],
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  [AC_MSG_CHECKING(the location of hash_map)
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   save_CXXFLAGS="${CXXFLAGS}"
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   CXXFLAGS="${AM_CXXFLAGS} ${CXXFLAGS}"
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   AC_LANG_PUSH(C++)
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   ac_cv_cxx_hash_map=""
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   for location in "" "ext/" "tr1/" ; do
 
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   for location in ext/hash_map boost/hash_map hash_map; do
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     for namespace in __gnu_cxx "" std stdext; do
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       for classprefix in unordered hash; do
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         if test -z "$ac_cv_cxx_hash_map"; then
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           AC_COMPILE_IFELSE(
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             [AC_LANG_PROGRAM([[#include <${location}${classprefix}_map>]],
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                           [[${namespace}::${classprefix}_map<int, int> t]])],
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             [ac_cv_cxx_hash_map="<${location}${classprefix}_map>";
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              ac_cv_cxx_hash_set="<${location}${classprefix}_set>";
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              ac_cv_cxx_hash_namespace="$namespace";
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              ac_cv_cxx_hash_map_class="${classprefix}_map";
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              ac_cv_cxx_hash_set_class="${classprefix}_set"])
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         fi
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       done
 
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       if test -z "$ac_cv_cxx_hash_map"; then
 
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         AC_COMPILE_IFELSE(
 
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           [AC_LANG_PROGRAM(
 
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             [[#include <$location>]],
 
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             [[${namespace}::hash_map<int, int> t]])],
 
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           [ac_cv_cxx_hash_map="<$location>";
 
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           ac_cv_cxx_hash_namespace="$namespace";])
 
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       fi
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     done
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   done
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   AC_LANG_POP()
 
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   ac_cv_cxx_hash_set=`echo "$ac_cv_cxx_hash_map" | sed s/map/set/`;
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   if test -n "$ac_cv_cxx_hash_map"; then
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      AC_DEFINE(HAVE_HASH_MAP, 1, [define if the compiler has hash_map])
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      AC_DEFINE(HAVE_HASH_SET, 1, [define if the compiler has hash_set])
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                         [the location of <hash_set>])
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      AC_DEFINE_UNQUOTED(HASH_NAMESPACE,$ac_cv_cxx_hash_namespace,
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                         [the namespace of hash_map/hash_set])
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      AC_DEFINE_UNQUOTED(HASH_MAP_CLASS,$ac_cv_cxx_hash_map_class,
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                         [the classname of hash_map])
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      AC_DEFINE_UNQUOTED(HASH_SET_CLASS,$ac_cv_cxx_hash_set_class,
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                         [the classname of hash_set])
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      AC_MSG_RESULT([$ac_cv_cxx_hash_map])
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   else
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      AC_MSG_RESULT()
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      AC_MSG_WARN([could not find an STL hash_map])
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   fi
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   AC_CACHE_CHECK(
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     [whether hash_map has rehash method],
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     [ac_cv_hash_map_has_rehash],
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     [AC_COMPILE_IFELSE(
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       [AC_LANG_PROGRAM([[
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#include HASH_MAP_H
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using namespace HASH_NAMESPACE;
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       ]],[[
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HASH_MAP_CLASS<int, int> test_hash;
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test_hash.rehash(100);
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          ]])],
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       [ac_cv_hash_map_has_rehash=yes],
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       [ac_cv_hash_map_has_rehash=no])])
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   AS_IF([test $ac_cv_hash_map_has_rehash = yes],[
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      AC_DEFINE(HASH_MAP_HAS_REHASH, 1, [if hash_map<> hash rehash method])
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   ])
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   AC_CACHE_CHECK(
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     [whether hash_map has resize method],
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     [ac_cv_hash_map_has_resize],
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     [AC_COMPILE_IFELSE(
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       [AC_LANG_PROGRAM([[
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#include HASH_MAP_H
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using namespace HASH_NAMESPACE;
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       ]],[[
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HASH_MAP_CLASS<int, int> test_hash;
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test_hash.resize(100);
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          ]])],
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       [ac_cv_hash_map_has_resize=yes],
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       [ac_cv_hash_map_has_resize=no])])
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   AS_IF([test $ac_cv_hash_map_has_resize = yes],[
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      AC_DEFINE(HASH_MAP_HAS_RESIZE, 1, [if hash_map<> hash resize method])
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   ])
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   AC_CACHE_CHECK(
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     [whether to redefine hash<string>],
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     [ac_cv_redefine_hash_string],
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     [AC_COMPILE_IFELSE(
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       [AC_LANG_PROGRAM([[
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#include HASH_SET_H
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#include <string>
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using namespace HASH_NAMESPACE;
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using namespace std;
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          ]],[[
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string teststr("test");
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HASH_SET_CLASS<string> test_hash;
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HASH_SET_CLASS<string>::iterator iter= test_hash.find(teststr);
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if (iter != test_hash.end())
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  return 1;
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          ]])],
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       [ac_cv_redefine_hash_string=no],
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       [ac_cv_redefine_hash_string=yes])])
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   AS_IF([test $ac_cv_redefine_hash_string = yes],[
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      AC_DEFINE(REDEFINE_HASH_STRING, 1, [if hash<string> needs to be defined])
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   ])
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   CXXFLAGS="${save_CXXFLAGS}"
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   AC_LANG_POP()
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])