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57 lines
1.5 KiB
Plaintext
57 lines
1.5 KiB
Plaintext
=pod
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=head1 NAME
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OPENSSL_FILE, OPENSSL_LINE, OPENSSL_FUNC,
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OPENSSL_MSTR, OPENSSL_MSTR_HELPER
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- generic C programming utility macros
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=head1 SYNOPSIS
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#include <openssl/macros.h>
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#define OPENSSL_FILE /* typically: __FILE__ */
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#define OPENSSL_LINE /* typically: __LINE__ */
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#define OPENSSL_FUNC /* typically: __func__ */
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#define OPENSSL_MSTR_HELPER(x) #x
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#define OPENSSL_MSTR(x) OPENSSL_MSTR_HELPER(x)
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=head1 DESCRIPTION
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The macros B<OPENSSL_FILE> and B<OPENSSL_LINE>
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typically yield the current filename and line number during C compilation.
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When B<OPENSSL_NO_FILENAMES> is defined they yield B<""> and B<0>, respectively.
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The macro B<OPENSSL_FUNC> attempts to yield the name of the C function
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currently being compiled, as far as language and compiler versions allow.
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Otherwise, it yields "(unknown function)".
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The macro B<OPENSSL_MSTR> yields the expansion of the macro given as argument,
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which is useful for concatenation with string constants.
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The macro B<OPENSSL_MSTR_HELPER> is an auxiliary macro for this purpose.
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=head1 RETURN VALUES
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see above
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=head1 SEE ALSO
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L<crypto(7)>
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=head1 HISTORY
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B<OPENSSL_FUNC>, B<OPENSSL_MSTR>, and B<OPENSSL_MSTR_HELPER>
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were added in OpenSSL 3.0.
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=head1 COPYRIGHT
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Copyright 2018-2019 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the Apache License 2.0 (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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