logo
down
shadow

Passing a 1 byte argument to a function?


Passing a 1 byte argument to a function?

By : user2951502
Date : November 18 2020, 11:13 AM
To fix this issue The stack must be aligned. If you make 16 bit real mode program, the stack must be aligned on 16 bits. If you make 32 bit, protected mode program the stack must be aligned on 32 bits.
But you don't need to pass exactly 1 byte to the function. Just push 16/32 bits and use only the lowest 8 of them in the function. Something like this:
code :
use32
proc  MyFunc, .arg32, .arg16, .arg8
begin
       mov  eax, [.arg32]
       mov  bx, word [.arg16]
       mov  cl, byte [.arg8]
       ret
endp

Main:
       push  ecx   ; CL is arg8
       push  ebx   ; BX is arg16
       push  eax   ; EAX is arg32
       call  MyFunc

; Or shortly:
       stdcall MyFunc, eax, ebx, ecx


Share : facebook icon twitter icon
Memory leaks? in passing IEnumerable<byte[]> array to unmanaged function as byte** parameter

Memory leaks? in passing IEnumerable<byte[]> array to unmanaged function as byte** parameter


By : user3378409
Date : March 29 2020, 07:55 AM
I wish did fix the issue. Is that the correct way to allocate and free handles to managed data passed to unmanaged dll?
code :
static void PinEntries(IEnumerable<byte[]> data)
{
    var handles = data.Select(d => GCHandle.Alloc(d, GCHandleType.Pinned));
    var ptrs = handles.Select(h => h.AddrOfPinnedObject());
    IntPtr[] dataPtrs = ptrs.ToArray();
    Thread.Sleep(100); // unmanaged function call taking byte** data
    handles.ToList().ForEach(h => h.Free());
}
        var handles = data.Select(d => GCHandle.Alloc(d, GCHandleType.Pinned)).ToList();
        var ptrs = handles.Select(h => h.AddrOfPinnedObject());
        IntPtr[] dataPtrs = ptrs.ToArray();
        handles.ForEach(h => h.Free());
Passing on an argument from a wrapper to an inner function when argument is allowed to be missing in inner function - po

Passing on an argument from a wrapper to an inner function when argument is allowed to be missing in inner function - po


By : Ning Liu
Date : March 29 2020, 07:55 AM
wish of those help I have a function which has the argument arg which is allowed to be missing. If it is missing it is assigned some value within foo. , You could check for whether arg is missing before calling sapply:
code :
foo_wrapper <- function(x, arg)
if(missing(arg)) sapply(x, foo) else sapply(x, foo, arg=arg)
Perl - argument passing for function as function argument - nice and clear way

Perl - argument passing for function as function argument - nice and clear way


By : Raja Kulasekaran
Date : March 29 2020, 07:55 AM
wish help you to fix your issue One option is to wrap the reference to your save method in an anonymous subroutine that provides any static arguments:
code :
save_method => sub { append_or_overwrite({ action => 'ADD', %{shift()}}) },
$save_method->({
    position => \$HoA->{ $array->[$key_index] },
    data     => [@selected_columns],
});
save_method => [\&append_or_overwrite, action => 'ADD'],
my ($code, @args) = @$save_method;
$code->({
    position => \$HoA->{ $array->[$key_index] },
    data     => [@selected_columns],
    @args,
});
Dart/vscode: enforce function argument types when passing function itself as an argument to constructor

Dart/vscode: enforce function argument types when passing function itself as an argument to constructor


By : xDox
Date : March 29 2020, 07:55 AM
Hope that helps As the subject suggests, how does one enforce function argument types in editor (say VSCode) when the function itself is passed as an argument to a class constructor? This goes for complex types. In the simple example below, vscode linter doesn't hiccup when calling the passed add() function with incorrect (int) argument rather than the correct (String) argument: , You can specify function types inline
code :
class ChildClass {

   final int Function(String text) add;
typedef AddFn = int Function(string text);

class ChildClass {

   final AddFn add;
programming workflow  : which one ? passing argument from function to function or passing the output as argument to othe

programming workflow : which one ? passing argument from function to function or passing the output as argument to othe


By : be with you
Date : March 29 2020, 07:55 AM
Hope that helps select_color_from_obj seems to be an unnecessary function. You could just call
shadow
Privacy Policy - Terms - Contact Us © ourworld-yourmove.org