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#include "common.hpp"
namespace
{
char buffer[8];
int allocate_count = 0;
int deallocate_count = 0;
void* allocate(size_t size)
{
CHECK(size == 8);
++allocate_count;
return buffer;
}
void deallocate(void* ptr)
{
CHECK(ptr == buffer);
++deallocate_count;
}
}
TEST(custom_memory_management)
{
// remember old functions
allocation_function old_allocate = get_memory_allocation_function();
deallocation_function old_deallocate = get_memory_deallocation_function();
// replace functions
set_memory_management_functions(allocate, deallocate);
try
{
{
// parse document
xml_document doc;
CHECK(doc.load("<node/>"));
CHECK(allocate_count == 1);
CHECK(deallocate_count == 0);
CHECK_STRING(buffer, "<node\0>");
// modify document
doc.child("node").set_name("foobars");
CHECK(allocate_count == 2);
CHECK(deallocate_count == 0);
CHECK_STRING(buffer, "foobars");
}
CHECK(allocate_count == 2);
CHECK(deallocate_count == 2);
CHECK_STRING(buffer, "foobars");
// restore old functions
set_memory_management_functions(old_allocate, old_deallocate);
}
catch (const char* error)
{
// restore old functions
set_memory_management_functions(old_allocate, old_deallocate);
// rethrow
throw error;
}
}
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