Updated: 2022/Sep/29

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OPENSSL_FILE(3)                     OpenSSL                    OPENSSL_FILE(3)



NAME
       OPENSSL_FILE, OPENSSL_LINE, OPENSSL_FUNC, OPENSSL_MSTR,
       OPENSSL_MSTR_HELPER - generic C programming utility macros

LIBRARY
       libcrypto, -lcrypto

SYNOPSIS
        #include <openssl/macros.h>

        #define OPENSSL_FILE /* typically: __FILE__ */
        #define OPENSSL_LINE /* typically: __LINE__ */
        #define OPENSSL_FUNC /* typically: __func__ */

        #define OPENSSL_MSTR_HELPER(x) #x
        #define OPENSSL_MSTR(x) OPENSSL_MSTR_HELPER(x)

DESCRIPTION
       The macros OPENSSL_FILE and OPENSSL_LINE typically yield the current
       filename and line number during C compilation.  When
       OPENSSL_NO_FILENAMES is defined they yield "" and 0, respectively.

       The macro OPENSSL_FUNC attempts to yield the name of the C function
       currently being compiled, as far as language and compiler versions
       allow.  Otherwise, it yields "(unknown function)".

       The macro OPENSSL_MSTR yields the expansion of the macro given as
       argument, which is useful for concatenation with string constants.  The
       macro OPENSSL_MSTR_HELPER is an auxiliary macro for this purpose.

RETURN VALUES
       see above

SEE ALSO
       crypto(7)

HISTORY
       OPENSSL_FUNC, OPENSSL_MSTR, and OPENSSL_MSTR_HELPER were added in
       OpenSSL 3.0.

COPYRIGHT
       Copyright 2018-2019 The OpenSSL Project Authors. All Rights Reserved.

       Licensed under the Apache License 2.0 (the "License").  You may not use
       this file except in compliance with the License.  You can obtain a copy
       in the file LICENSE in the source distribution or at
       <https://www.openssl.org/source/license.html>.



3.0.12                            2023-05-07                   OPENSSL_FILE(3)