diff options
Diffstat (limited to 'Source/cmDynamicLoader.h')
| -rw-r--r-- | Source/cmDynamicLoader.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/Source/cmDynamicLoader.h b/Source/cmDynamicLoader.h index d5cc61246c..7c49f90978 100644 --- a/Source/cmDynamicLoader.h +++ b/Source/cmDynamicLoader.h @@ -37,6 +37,17 @@ typedef void* cmLibHandle; #endif +// C++ Does not allow casts from pointer-to-data types to +// pointer-to-function types. However, the return type from each +// platform's symbol lookup implementation is void*. We need to hide +// the cast from void* to a pointer-to-function type in C code. The +// implementation of cmDynamicLoader::GetSymbolAddress simply calls a +// C-based implementation in cmDynamicLoaderC.c. This +// cmDynamicLoaderFunction type is the return type of +// cmDynamicLoader::GetSymbolAddress and can be cast to any other +// pointer-to-function type safely in C++. +extern "C" { typedef void (*cmDynamicLoaderFunction)(); } + class cmDynamicLoader { public: @@ -53,7 +64,7 @@ public: // Description: // Find the address of the symbol in the given library - static void* GetSymbolAddress(cmLibHandle, const char*); + static cmDynamicLoaderFunction GetSymbolAddress(cmLibHandle, const char*); // Description: // Return the library prefix for the given architecture |