[#BloombergLP-bdlt-FormatUtil-writeZeroPaddedDigits]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlt.adoc[bdlt]::xref:BloombergLP/bdlt/FormatUtil.adoc[FormatUtil]::writeZeroPaddedDigits
:relfileprefix: ../../../
:mrdocs:

Write the specified `value` in decimal to the specified `out`. Always write the specified `numDigits` digits, '0'‐padding to the left if necessary. Return the iterator after output is done. The behavior is undefined unless `2 <= numDigits <= 6` and `0 <= value < pow(10, numDigits)`.

== Synopsis

Declared in `<bdlt_formatutil.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class t_ITERATOR>
static
t_ITERATOR
writeZeroPaddedDigits(
    t_ITERATOR out,
    int value,
    int numDigits = 2);
----


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