doc/man/man3/dlerror.3

   1 .Dd April 17, 2006
   2 .Dt DLERROR 3
   3 .Sh NAME
   4 .Nm dlerror
   5 .Nd get diagnostic information
   6 .Sh SYNOPSIS
   7 .In dlfcn.h
   8 .Ft const char*
   9 .Fn dlerror "void"
  10 .Sh DESCRIPTION
  11 .Fn dlerror
  12 returns a null-terminated character string describing the last error that
  13 occurred on this thread during a call to
  14 .Fn dlopen ,
  15 .Fn dlopen_preflight ,
  16 .Fn dlsym ,
  17 or
  18 .Fn dlclose .
  19 If no such error has occurred,
  20 .Fn dlerror
  21 returns a null pointer.
  22 At each call to
  23 .Fn dlerror ,
  24 the error indication is reset.  Thus in the case of two calls
  25 to
  26 .Fn dlerror ,
  27 where the second call follows the first immediately, the second call
  28 will always return a null pointer.
  29 .Sh SEE ALSO
  30 .Xr dlopen 3
  31 .Xr dlopen_preflight 3
  32 .Xr dlclose 3
  33 .Xr dlsym 3
  34 .Xr dyld 3