compat.c

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#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <math.h>
#include "compat.h"
#include "global.h"

#ifdef HAVE_LIBDMALLOC
#include <dmalloc.h>
#endif

#ifndef HAVE_EXPF
float
expf (float x)
{
  return (float) exp ((double) x);
}
#endif

#ifndef HAVE_LOGF
float
logf (float x)
{
  return (float) log ((double) x);
}
#endif

#ifndef HAVE_RANDOM
long
random (void)
{
  return (long) rand ();
}
#endif

#if !defined(HAVE_DLFCN_H) && defined(WIN32)
#define WIN32_LEAN_AND_MEAN
#include <windows.h>

void *
dlopen (const char * f, int ATTRIBUTE_UNUSED flag)
{
  return LoadLibrary (f);
}

void
dlclose (void * h)
{
  FreeLibrary ((HINSTANCE) h);
}

char *
dlerror ()
{
  static LPVOID lpMsgBuf = NULL;
  DWORD dw;

  /* free the error message buffer */
  if (lpMsgBuf)
    LocalFree (lpMsgBuf);

  /* get the error code */
  dw = GetLastError();

  /* get the corresponding error message */
  FormatMessage (
                FORMAT_MESSAGE_ALLOCATE_BUFFER |
                FORMAT_MESSAGE_FROM_SYSTEM |
                FORMAT_MESSAGE_IGNORE_INSERTS,
                NULL,
                dw,
                MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
                (LPTSTR) &lpMsgBuf,
                0, NULL);

  return (char *) lpMsgBuf;
}

void *
dlsym (void *handle, const char *symbol)
{
  return (void *) GetProcAddress((HMODULE) handle, symbol);
}


#endif