compiler-rt/test/BlocksRuntime/large-struct.c

   1 //
   2 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   3 // See https://llvm.org/LICENSE.txt for license information.
   4 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   5
   6 //  -*- mode:C; c-basic-offset:4; tab-width:4; intent-tabs-mode:nil;  -*-
   7 // CONFIG
   8
   9 #import <stdio.h>
  10 #import <stdlib.h>
  11 #import <string.h>
  12
  13 typedef struct {
  14     unsigned long ps[30];
  15     int qs[30];
  16 } BobTheStruct;
  17
  18 int main (int argc, const char * argv[]) {
  19     BobTheStruct inny;
  20     BobTheStruct outty;
  21     BobTheStruct (^copyStruct)(BobTheStruct);
  22     int i;
  23
  24     memset(&inny, 0xA5, sizeof(inny));
  25     memset(&outty, 0x2A, sizeof(outty));
  26
  27     for(i=0; i<30; i++) {
  28         inny.ps[i] = i * i * i;
  29         inny.qs[i] = -i * i * i;
  30     }
  31
  32     copyStruct = ^(BobTheStruct aBigStruct){ return aBigStruct; };  // pass-by-value intrinsically copies the argument
  33
  34     outty = copyStruct(inny);
  35
  36     if ( &inny == &outty ) {
  37         printf("%s: struct wasn't copied.", argv[0]);
  38         exit(1);
  39     }
  40     for(i=0; i<30; i++) {
  41         if ( (inny.ps[i] != outty.ps[i]) || (inny.qs[i] != outty.qs[i]) ) {
  42             printf("%s: struct contents did not match.", argv[0]);
  43             exit(1);
  44         }
  45     }
  46
  47     printf("%s: success\n", argv[0]);
  48
  49     return 0;
  50 }