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Overview
Comment:Add assertion check for NaN support at startup. (CVS 5447)
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SHA1: 8474cde34b3fcb99cd5908fddb8528d0db331cdf
User & Date: shane 2008-07-22 05:13:30.000
Context
2008-07-22
05:15
Added comment on floating point precision compile option for MSVC. (CVS 5448) (check-in: e20f2b8c6a user: shane tags: trunk)
05:13
Add assertion check for NaN support at startup. (CVS 5447) (check-in: 8474cde34b user: shane tags: trunk)
05:05
"configure" support updated. Removed unused features. Added parsing of CFLAGS and CPPFLAGS to extract OMIT options to pass to lemon and mkkeywordhash. (CVS 5446) (check-in: c67aa5057d user: shane tags: trunk)
Changes
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Changes to src/main.c.
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**
*************************************************************************
** Main file for the SQLite library.  The routines in this file
** implement the programmer interface to the library.  Routines in
** other files are for internal use by SQLite and should not be
** accessed by users of the library.
**
** $Id: main.c,v 1.479 2008/07/16 14:02:33 drh Exp $
** $Id: main.c,v 1.480 2008/07/22 05:13:30 shane Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

#ifdef SQLITE_ENABLE_FTS3
# include "fts3.h"
#endif
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    sqlite3StatusReset();
    inProgress = 1;
    rc = sqlite3_os_init();
    inProgress = 0;
    sqlite3Config.isInit = (rc==SQLITE_OK ? 1 : 0);
    sqlite3_mutex_leave(sqlite3Config.pInitMutex);
  }

  /* Check NaN support. */
#ifndef NDEBUG
  /* This section of code's only "output" is via assert() statements. */
  if ( rc==SQLITE_OK ){
    u64 x = (((u64)1)<<63)-1;
    double y;
    assert(sizeof(x)==8);
    assert(sizeof(x)==sizeof(y));
    memcpy(&y, &x, 8);
    assert( sqlite3IsNaN(y) );
  }
#endif

  return rc;
}

/*
** Undo the effects of sqlite3_initialize().  Must not be called while
** there are outstanding database connections or memory allocations or
** while any part of SQLite is otherwise in use in any thread.  This
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