diff options
Diffstat (limited to 'cmake/find_hash_map.cmake')
| -rw-r--r-- | cmake/find_hash_map.cmake | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/cmake/find_hash_map.cmake b/cmake/find_hash_map.cmake new file mode 100644 index 00000000..22796fb8 --- /dev/null +++ b/cmake/find_hash_map.cmake @@ -0,0 +1,119 @@ +include(CheckCXXSourceCompiles) + +function(find_hash_map) + set(HAVE_HASH_MAP 1 PARENT_SCOPE) + set(HAVE_HASH_SET 1 PARENT_SCOPE) + # Search for hash_map in the following order: + # 1. <unordered_map> ::std::unordered_map + # 2. <tr1/unordered_map> ::std::tr1::unordered_map + # 3. <hash_map> ::hash_map + # 4. <hash_map> ::stdext::hash_map + # 5. <ext/hash_map> ::std::hash_map + # 6. <ext/hash_map> ::__gnu_cxx::hash_map + check_cxx_source_compiles(" + #include <unordered_map> + int main() { ::std::unordered_map<int, int> v; return v[0]; } + " HAS_STD_UNORDERED_MAP) + if (HAS_STD_UNORDERED_MAP) + set(HASH_NAMESPACE ::std PARENT_SCOPE) + set(HASH_MAP_H <unordered_map> PARENT_SCOPE) + set(HASH_MAP_CLASS unordered_map PARENT_SCOPE) + set(HASH_SET_H <unordered_set> PARENT_SCOPE) + set(HASH_SET_CLASS unordered_set PARENT_SCOPE) + return() + endif (HAS_STD_UNORDERED_MAP) + + check_cxx_source_compiles(" + #include <tr1/unordered_map> + int main() { ::std::tr1::unordered_map<int, int> v; return v[0]; } + " HAS_STD_TR1_UNORDERED_MAP) + if (HAS_STD_TR1_UNORDERED_MAP) + set(HASH_NAMESPACE ::std::tr1 PARENT_SCOPE) + set(HASH_MAP_H <tr1/unordered_map> PARENT_SCOPE) + set(HASH_MAP_CLASS unordered_map PARENT_SCOPE) + set(HASH_SET_H <tr1/unordered_set> PARENT_SCOPE) + set(HASH_SET_CLASS unordered_set PARENT_SCOPE) + return() + endif (HAS_STD_TR1_UNORDERED_MAP) + + check_cxx_source_compiles(" + #include <hash_map> + int main() { ::hash_map<int, int> v; return v[0]; } + " HAS_HASH_MAP) + if (HAS_HASH_MAP) + set(HASH_NAMESPACE :: PARENT_SCOPE) + set(HASH_MAP_H <hash_map> PARENT_SCOPE) + set(HASH_MAP_CLASS hash_map PARENT_SCOPE) + set(HASH_SET_H <hash_set> PARENT_SCOPE) + set(HASH_SET_CLASS hash_set PARENT_SCOPE) + return() + endif (HAS_HASH_MAP) + + check_cxx_source_compiles(" + #include <hash_map> + int main() { ::stdext::hash_map<int, int> v; return v[0]; } + " HAS_STDEXT_HASH_MAP) + if (HAS_STDEXT_HASH_MAP) + set(HASH_NAMESPACE ::stdext PARENT_SCOPE) + set(HASH_MAP_H <hash_map> PARENT_SCOPE) + set(HASH_MAP_CLASS hash_map PARENT_SCOPE) + set(HASH_SET_H <hash_set> PARENT_SCOPE) + set(HASH_SET_CLASS hash_set PARENT_SCOPE) + return() + endif (HAS_STDEXT_HASH_MAP) + + check_cxx_source_compiles(" + #include <ext/hash_map> + int main() { ::std::hash_map<int, int> v; return v[0]; } + " HAS_STD_HASH_MAP) + if (HAS_STD_HASH_MAP) + set(HASH_NAMESPACE ::std PARENT_SCOPE) + set(HASH_MAP_H <ext/hash_map> PARENT_SCOPE) + set(HASH_MAP_CLASS hash_map PARENT_SCOPE) + set(HASH_SET_H <ext/hash_set> PARENT_SCOPE) + set(HASH_SET_CLASS hash_set PARENT_SCOPE) + return() + endif (HAS_STD_HASH_MAP) + + check_cxx_source_compiles(" + #include <ext/hash_map> + int main() { ::__gnu_cxx::hash_map<int, int> v; return v[0]; } + " HAS_GNU_CXX_HASH_MAP) + if (HAS_GNU_CXX_HASH_MAP) + set(HASH_NAMESPACE ::gnu_cxx PARENT_SCOPE) + set(HASH_MAP_H <ext/hash_map> PARENT_SCOPE) + set(HASH_MAP_CLASS hash_map PARENT_SCOPE) + set(HASH_SET_H <ext/hash_set> PARENT_SCOPE) + set(HASH_SET_CLASS hash_set PARENT_SCOPE) + return() + endif (HAS_GNU_CXX_HASH_MAP) + + set(HAVE_HASH_MAP 0 PARENT_SCOPE) + set(HAVE_HASH_SET 0 PARENT_SCOPE) +endfunction() + +function(find_hash_compare) + if (MSVC) + check_cxx_source_compiles(" + #include ${HASH_MAP_H} + int main() { ::std::hash_compare<int> cp; return cp(0); } + " HAS_STD_HASH_COMPARE) + if (HAS_STD_HASH_COMPARE) + set(HASH_COMPARE ::std::hash_compare PARENT_SCOPE) + return() + endif (HAS_STD_HASH_COMPARE) + + check_cxx_source_compiles(" + #include ${HASH_MAP_H} + int main() { ::stdext::hash_compare<int> cp; return cp(0); } + " HAS_STDEXT_HASH_COMPARE) + if (HAS_STDEXT_HASH_COMPARE) + set(HASH_COMPARE ::stdext::hash_compare PARENT_SCOPE) + return() + endif (HAS_STDEXT_HASH_COMPARE) + endif (MSVC) + set(HASH_COMPARE PARENT_SCOPE) +endfunction() + +find_hash_map() +find_hash_compare() |