= nng_stat_string(3)
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//
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// Copyright 2020 Staysail Systems, Inc. <info@staysail.tech>
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// Copyright 2018 Capitar IT Group BV <info@capitar.com>
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//
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// This document is supplied under the terms of the MIT License, a
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// copy of which should be located in the distribution where this
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// file was obtained (LICENSE.txt). A copy of the license may also be
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// found online at https://opensource.org/licenses/MIT.
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//
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== NAME
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nng_stat_string - get statistic string value
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== SYNOPSIS
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[source, c]
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----
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#include <nng/nng.h>
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typedef struct nng_stat nng_stat;
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const char *nng_stat_string(nng_stat *stat);
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----
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== DESCRIPTION
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The `nng_stat_string()` function returns a string value for the statistic _stat_,
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which must be of type `NNG_STAT_STRING` (see xref:nng_stat_type.3.adoc[`nng_stat_type(3)`]).
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If the statistic is not of type `NNG_STAT_STRING`, then `NULL` will be returned.
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NOTE: The returned string is valid until xref:nng_stats_free.3.adoc[`nng_stats_free()`] is called to
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free the memory for the snapshot.
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== RETURN VALUES
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The string value associated with _stat_, or `NULL` if the statistic is not
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a string type.
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== ERRORS
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None.
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== SEE ALSO
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[.text-left]
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xref:libnng.3.adoc[libnng(3)],
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xref:nng_stats_get.3.adoc[nng_stats_get(3)],
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xref:nng_stat_type.3.adoc[nng_stats_type(3)],
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xref:nng_stat_value.3.adoc[nng_stats_value(3)],
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xref:nng_stat.5.adoc[nng_stat(5)],
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xref:nng.7.adoc[nng(7)]
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