ida pro doesn't show complete disassambled export function?

Question

Please excuse my newbie question but when I tried exporting a function in the header using

__declspec(dllexport) void testfunction(double i);

and declared the function in the .cpp file like this

void testfunction(double i) {
   for (int k = 0; k<10; k++) {
        double j = 0.1;
   }    
}

I only see this for the function after disassembling the .exe file using IDA pro:

.text:00401130 ; void __cdecl testfunction(double)
.text:00401130                 public ?testfunction@@YAXN@Z
.text:00401130 ?testfunction@@YAXN@Z proc near         ; DATA XREF: .rdata:off_40BE88o
.text:00401130                 jmp     dword_40C000
.text:00401130 ?testfunction@@YAXN@Z endp

Below I have provided the location of dword_40C000

.data:0040C000 ; Section 3. (virtual address 0000C000)
.data:0040C000 ; Virtual size                  : 000004A0 (   1184.)
.data:0040C000 ; Section size in file          : 00000200 (    512.)
.data:0040C000 ; Offset to raw data for section: 0000B200
.data:0040C000 ; Flags C0000040: Data Readable Writable
.data:0040C000 ; Alignment     : default
.data:0040C000 ; ===========================================================================
.data:0040C000
.data:0040C000 ; Segment type: Pure data
.data:0040C000 ; Segment permissions: Read/Write
.data:0040C000 _data           segment para public 'DATA' use32
.data:0040C000                 assume cs:_data
.data:0040C000                 ;org 40C000h
.data:0040C000 dword_40C000    dd 6000001h             ; DATA XREF: testfunction(double)r
.data:0040C004                 align 10h
.data:0040C010                 db    2
.data:0040C011                 db    0
.data:0040C012                 db    0
.data:0040C013                 db    0
.data:0040C014                 db    2
.data:0040C015                 db    0
.data:0040C016                 db    0
.data:0040C017                 db    0
.data:0040C018 dword_40C018    dd 6000003h             ; DATA XREF: .text:004011A0r
.data:0040C01C dword_40C01C    dd 6000004h             ; DATA XREF: .text:004011D0r
.data:0040C020 dword_40C020    dd 6000005h             ; DATA XREF: .text:00401200r
...

Shouldn't there be more code since I have a for loop and some other stuff? Where is the actual code?

Answer 1

It seems you're using C++/CLI. I think the 6000001 is the managed method's token, it will be replaced by the address of the JITted code at runtime.

Compile your binary for native x86 to see machine code.