[#bsl-basic_stringbuf-sputn]
= xref:bsl.adoc[bsl]::xref:bsl/basic_stringbuf.adoc[basic_stringbuf]::sputn
:relfileprefix: ../../
:mrdocs:

Entry point for all single‐character output functions.

== Synopsis

Declared in `<bslstl_stringbuf.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
streamsize
sputn(
    char_type const* __s,
    streamsize __n);
----

== Description

One of two public output functions.

Returns xsputn(__s,__n). The effect is to write ___s[0]_ through ___s[]_ to the output sequence, if possible.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *__s*
| A buffer read area.
| *__n*
| A count.
|===


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