Example 1: Using the dynamic loading library in a C program.
void* library; /* The handle, pointing to the dynamic library */ void* get_foo; /* The function pointer, to point to get_foo() */ int foo; /* The return value from get_foo() */ /* Open the dynamic library libBar. The RTLD_NOW flag indicates that * all of the symbols in the library should be loaded immediately */ library = dlopen("libBar.so", RTLD_NOW); /* Load the get_foo symbol, which is a function of the form * int get_foo(int x) */ get_foo = dlsym(library, "get_foo"); /* Call the get_foo() function */ foo = (*get_foo)(5);