dlerror - Online Linux Manual PageSection : 3
Updated : 2022-12-15
Source : Linux man-pages 6.03

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NAMEdlerror − obtain error diagnostic for functions in the dlopen API

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LIBRARYDynamic linking library (libdl, −ldl)

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SYNOPSIS#include <dlfcn.h>char *dlerror(void);"

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DESCRIPTIONThe 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.

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VERSIONSdlerror() is present in glibc 2.0 and later.

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ATTRIBUTESFor an explanation of the terms used in this section, see attributes(7). InterfaceAttributeValue dlerror() Thread safetyMT-Safe

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STANDARDSPOSIX.1-2001.

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

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

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EXAMPLESSee dlopen(3).

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SEE ALSOdladdr(3), dlinfo(3), dlopen(3), dlsym(3) 0

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