Marshaling Opaque Pointers: a Special Case Remember, any API function that returns or accepts a handle is really working with an opaque pointer. Your code should marshal handles in Windows as System.IntPtr values. Marshaling Text: Once you have established whether the text parameter is input only...
The majority of the Windows OS is written in C. As a result, the data types used with the Windows API are either C types or C types that are relabeled through a type definition or macro definition. Let's look at data marshaling without pointers. To keep things simple, I'll focus fir...
The majority of the Windows OS is written in C. As a result, the data types used with the Windows API are either C types or C types that are relabeled through a type definition or macro definition. Let's look at data marshaling without pointers. To keep things simple, I'll focus fir...
Similarly, if a procedure can return an object, such as a closure, that includes, explicitly or implicitly, references to its local variables, stack allocation is inappropriate because it will leave behind dangling pointers. In these situations, the compiler can allocate ars on a runtime heap (...
Poking around, we've got quite a few of these PyTypeObject function pointers that are cast in order to construct the structures with functions taking more specific types. The cleanup for clang-17's new UBSAN check will touch many files. (but is otherwise a pretty mechanical change - in mo...
Function pointers are simply pointers to the label of the respective function. There's no table of contents (TOC) requirement for function pointers.Floating-point support for older codeThe MMX and floating-point stack registers (MM0-MM7/ST0-ST7) are preserved across context switches. There's...
1. That FORTRAN uses pointers, so any variables in the call stack had to be of type ptr in C. and 2. That the call stack in C was in reverse order of Fortran. Maybe that is the case today and why variable are stepping on each other. Just a thought. Translate...
We continueour attempt to build a traits class for function pointersby incorporating another attribute of function pointers: The calling convention. Calling conventions are not formally part of the standard, but they are a common extension, supported by the Microsoft compiler, gcc, clang, and icc....
Few pointers to consider when applying the Calling templates: When a user is on boarded to an organization, the user inherits the settings from the organization-level. If the user is added to a user-group, then the settings from the Ca...
PyCall::PyTypePtr is specialized for type objects, and PyCall::PyRubyPtr is for the objects that wraps pointers of Ruby objects. These PyCall::PyPtr objects are used mainly in PyCall infrastructure. Instead, we usually treats the instances of Object, Class, Module, or other classes that ...