dlerror − obtain error diagnostic for functions in the dlopen API
Dynamic linking library (libdl, −ldl)
#include <dlfcn.h>
char *dlerror(void);
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.
For an explanation of the terms used in this section, see attributes(7). |
POSIX.1-2008.
glibc 2.0. POSIX.1-2001.
SunOS.
The message returned by dlerror() may reside in a statically allocated buffer that is overwritten by subsequent dlerror() calls.
See dlopen(3).
dladdr(3), dlinfo(3), dlopen(3), dlsym(3)