/* * Copyright 2016 The Emscripten Authors. All rights reserved. * Emscripten is available under two separate licenses, the MIT license and the * University of Illinois/NCSA Open Source License. Both these licenses can be * found in the LICENSE file. */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <assert.h> #include "emscripten.h" int main(int argc, char **argv) { char *buf1 = (char*)malloc(100); char *data1 = "hello"; memcpy(buf1, data1, strlen(data1)+1); float *buf2 = (float*)malloc(100); float pie = 4.955; memcpy(buf2, &pie, sizeof(float)); printf("*pre: %s,%.3f*\n", buf1, buf2[0]); int totalMemory = emscripten_run_script_int("TOTAL_MEMORY"); int chunk = 1024*1024; char *buf3; for (int i = 0; i < (totalMemory/chunk)+1; i++) { buf3 = (char*)malloc(chunk); buf3[argc] = (int)buf2; } if (argc % 7 == 6) printf("%d\n", memcpy(buf3, buf1, argc)); char *buf4 = (char*)malloc(100); float *buf5 = (float*)malloc(100); //printf("totalMemory: %d bufs: %d,%d,%d,%d,%d\n", totalMemory, buf1, buf2, buf3, buf4, buf5); assert((int)buf4 > (int)totalMemory && (int)buf5 > (int)totalMemory); printf("*%s,%.3f*\n", buf1, buf2[0]); // the old heap data should still be there memcpy(buf4, buf1, strlen(data1)+1); memcpy(buf5, buf2, sizeof(float)); printf("*%s,%.3f*\n", buf4, buf5[0]); // and the new heap space should work too return 0; }