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.\" ========================================================================
.\"
.IX Title "OPENSSL_FILE 3ossl"
.TH OPENSSL_FILE 3ossl "2023-09-19" "3.0.11" "OpenSSL"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
OPENSSL_FILE, OPENSSL_LINE, OPENSSL_FUNC,
OPENSSL_MSTR, OPENSSL_MSTR_HELPER
\&\- generic C programming utility macros
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& #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)
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
The macros \fB\s-1OPENSSL_FILE\s0\fR and \fB\s-1OPENSSL_LINE\s0\fR
typically yield the current filename and line number during C compilation.
When \fB\s-1OPENSSL_NO_FILENAMES\s0\fR is defined they yield \fB""\fR and \fB0\fR, respectively.
.PP
The macro \fB\s-1OPENSSL_FUNC\s0\fR attempts to yield the name of the C function
currently being compiled, as far as language and compiler versions allow.
Otherwise, it yields \*(L"(unknown function)\*(R".
.PP
The macro \fB\s-1OPENSSL_MSTR\s0\fR yields the expansion of the macro given as argument,
which is useful for concatenation with string constants.
The macro \fB\s-1OPENSSL_MSTR_HELPER\s0\fR is an auxiliary macro for this purpose.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
see above
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBcrypto\fR\|(7)
.SH "HISTORY"
.IX Header "HISTORY"
\&\fB\s-1OPENSSL_FUNC\s0\fR, \fB\s-1OPENSSL_MSTR\s0\fR, and \fB\s-1OPENSSL_MSTR_HELPER\s0\fR
were added in OpenSSL 3.0.
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2018\-2019 The OpenSSL Project Authors. All Rights Reserved.
.PP
Licensed under the Apache License 2.0 (the \*(L"License\*(R").  You may not use
this file except in compliance with the License.  You can obtain a copy
in the file \s-1LICENSE\s0 in the source distribution or at
<https://www.openssl.org/source/license.html>.