libgo/misc/cgo/test/align.go

   1 // Copyright 2010 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 package cgotest
   6
   7 /*
   8 #include <stdio.h>
   9
  10 typedef unsigned char Uint8;
  11 typedef unsigned short Uint16;
  12
  13 typedef enum {
  14  MOD1 = 0x0000,
  15  MODX = 0x8000
  16 } SDLMod;
  17
  18 typedef enum {
  19  A = 1,
  20  B = 322,
  21  SDLK_LAST
  22 } SDLKey;
  23
  24 typedef struct SDL_keysym {
  25         Uint8 scancode;
  26         SDLKey sym;
  27         SDLMod mod;
  28         Uint16 unicode;
  29 } SDL_keysym;
  30
  31 typedef struct SDL_KeyboardEvent {
  32         Uint8 typ;
  33         Uint8 which;
  34         Uint8 state;
  35         SDL_keysym keysym;
  36 } SDL_KeyboardEvent;
  37
  38 void makeEvent(SDL_KeyboardEvent *event) {
  39  unsigned char *p;
  40  int i;
  41
  42  p = (unsigned char*)event;
  43  for (i=0; i<sizeof *event; i++) {
  44    p[i] = i;
  45  }
  46 }
  47
  48 int same(SDL_KeyboardEvent* e, Uint8 typ, Uint8 which, Uint8 state, Uint8 scan, SDLKey sym, SDLMod mod, Uint16 uni) {
  49   return e->typ == typ && e->which == which && e->state == state && e->keysym.scancode == scan && e->keysym.sym == sym && e->keysym.mod == mod && e->keysym.unicode == uni;
  50 }
  51
  52 void cTest(SDL_KeyboardEvent *event) {
  53  printf("C: %#x %#x %#x %#x %#x %#x %#x\n", event->typ, event->which, event->state,
  54    event->keysym.scancode, event->keysym.sym, event->keysym.mod, event->keysym.unicode);
  55  fflush(stdout);
  56 }
  57
  58 */
  59 import "C"
  60
  61 import (
  62         "testing"
  63 )
  64
  65 func testAlign(t *testing.T) {
  66         var evt C.SDL_KeyboardEvent
  67         C.makeEvent(&evt)
  68         if C.same(&evt, evt.typ, evt.which, evt.state, evt.keysym.scancode, evt.keysym.sym, evt.keysym.mod, evt.keysym.unicode) == 0 {
  69                 t.Error("*** bad alignment")
  70                 C.cTest(&evt)
  71                 t.Errorf("Go: %#x %#x %#x %#x %#x %#x %#x\n",
  72                         evt.typ, evt.which, evt.state, evt.keysym.scancode,
  73                         evt.keysym.sym, evt.keysym.mod, evt.keysym.unicode)
  74                 t.Error(evt)
  75         }
  76 }