[#BloombergLP-bdlbb-BlobUtil-findBufferIndexAndOffset]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlbb.adoc[bdlbb]::xref:BloombergLP/bdlbb/BlobUtil.adoc[BlobUtil]::findBufferIndexAndOffset
:relfileprefix: ../../../
:mrdocs:

Return a value, designated here as `p`, such that for the specified `blob`, `blob.buffer(p.first)` is the buffer that contains the byte at the specified `position` in `blob`, and `p.second` is the offset corresponding to `position` within said buffer. The behavior of this function is undefined unless `0 <= position`, `0 < blob.totalSize()`, and `position < blob.totalSize()`. Note that (1) subsequent changes to `blob` may invalidate the result of this function, and (2) `p.first` never indicates a zero‐size buffer.

== Synopsis

Declared in `<bdlbb_blobutil.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
xref:bsl/pair-0b.adoc[bsl::pair<int, int>]
findBufferIndexAndOffset(
    xref:BloombergLP/bdlbb/Blob.adoc[Blob] const& blob,
    int position);
----


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