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dlerror(3)

DLERROR(3)                 Linux Programmer's Manual                DLERROR(3)



NAME
       dlerror - obtain error diagnostic for functions in the dlopen API

SYNOPSIS
       #include <dlfcn.h>

       char *dlerror(void);

       Link with -ldl.

DESCRIPTION
       The dlerror() function returns a human-readable, null-terminated string
       describing the most recent error that occurred from a call  to  one  of
       the  functions in the dlopen API since the last call to dlerror().  The
       returned string does not include a trailing newline.

       dlerror() returns NULL if no errors have occurred since  initialization
       or since it was last called.

VERSIONS
       dlerror() is present in glibc 2.0 and later.

ATTRIBUTES
       For   an   explanation   of   the  terms  used  in  this  section,  see
       attributes(7).

       allbox; lb  lb  lb  l  l  l.   Interface Attribute Value  T{  dlerror()
       T}   Thread safety     MT-Safe

CONFORMING TO
       POSIX.1-2001.

NOTES
       The  message returned by dlerror() may reside in a statically allocated
       buffer that is overwritten by subsequent dlerror() calls.

   History
       This function is part of the dlopen API, derived from SunOS.

EXAMPLE
       See dlopen(3).

SEE ALSO
       dladdr(3), dlinfo(3), dlopen(3), dlsym(3)

COLOPHON
       This page is part of release 5.02 of the Linux  man-pages  project.   A
       description  of  the project, information about reporting bugs, and the
       latest    version    of    this    page,    can     be     found     at
       https://www.kernel.org/doc/man-pages/.



Linux                             2017-09-15                        DLERROR(3)
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