[#BloombergLP-bdls-FdStreamBuf_FileHandler-write]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdls.adoc[bdls]::xref:BloombergLP/bdls/FdStreamBuf_FileHandler.adoc[FdStreamBuf_FileHandler]::write
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:mrdocs:

Write the specified `buffer`, containing the specified `numBytes`, to the file descriptor starting at the current position. Return 0 on success, and a non‐zero value otherwise. The behavior is undefined unless `0 <= numBytes`. Note that on Windows in text mode, a ` ` is written as `\r ` and counts as one character.

== Synopsis

Declared in `<bdls_fdstreambuf.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
write(
    char const* buffer,
    int numBytes);
----


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