test/BlocksRuntime/large-struct.c

   1 //
   2 //                     The LLVM Compiler Infrastructure
   3 //
   4 // This file is distributed under the University of Illinois Open Source
   5 // License. See LICENSE.TXT for details.
   6
   7 //  -*- mode:C; c-basic-offset:4; tab-width:4; intent-tabs-mode:nil;  -*-
   8 // CONFIG
   9
  10 #import <stdio.h>
  11 #import <stdlib.h>
  12 #import <string.h>
  13
  14 typedef struct {
  15     unsigned long ps[30];
  16     int qs[30];
  17 } BobTheStruct;
  18
  19 int main (int argc, const char * argv[]) {
  20     BobTheStruct inny;
  21     BobTheStruct outty;
  22     BobTheStruct (^copyStruct)(BobTheStruct);
  23     int i;
  24
  25     memset(&inny, 0xA5, sizeof(inny));
  26     memset(&outty, 0x2A, sizeof(outty));
  27
  28     for(i=0; i<30; i++) {
  29         inny.ps[i] = i * i * i;
  30         inny.qs[i] = -i * i * i;
  31     }
  32
  33     copyStruct = ^(BobTheStruct aBigStruct){ return aBigStruct; };  // pass-by-value intrinsically copies the argument
  34
  35     outty = copyStruct(inny);
  36
  37     if ( &inny == &outty ) {
  38         printf("%s: struct wasn't copied.", argv[0]);
  39         exit(1);
  40     }
  41     for(i=0; i<30; i++) {
  42         if ( (inny.ps[i] != outty.ps[i]) || (inny.qs[i] != outty.qs[i]) ) {
  43             printf("%s: struct contents did not match.", argv[0]);
  44             exit(1);
  45         }
  46     }
  47
  48     printf("%s: success\n", argv[0]);
  49
  50     return 0;
  51 }