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

Write `numBytes` from `buffer` to the file with `descriptor`.

== Synopsis

Declared in `<bdls_filesystemutil.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
int
write(
    xref:BloombergLP/bdls/FilesystemUtil/FileDescriptor.adoc[FileDescriptor] descriptor,
    void const* buffer,
    int numBytes);
----

== Description

Write the specified `numBytes` from the specified `buffer` address to the file with the specified `descriptor`. Return `numBytes` on success; the number of bytes written if space was exhausted; or a negative value on some other error.

== Return Value

`numBytes` on success; the number of bytes written if space was exhausted; or a negative value on error

== Parameters

[cols="1,4"]
|===
| Name| Description
| *descriptor*
| file descriptor of the file to write
| *buffer*
| buffer from which bytes are written
| *numBytes*
| number of bytes to write
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#