[#bsl-basic_string-01d-operator_subs-01]
= xref:bsl.adoc[bsl]::xref:bsl/basic_string-01d.adoc[basic_string<char8_t>]::operator[]
:relfileprefix: ../../
:mrdocs:

Subscript operators

== Synopses

Declared in `<bslstl_string.h>`

Return a reference providing modifiable access to the character at the specified `position` in this string if `position < length()`, or a reference providing non‐modifiable access to the null‐terminating character if `position == length()`. The behavior is undefined unless `position <= length()`, and, in the case of `position == length()`, the null‐terminating character is not modified through the returned reference.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/basic_string-01d/reference.adoc[reference]
xref:bsl/basic_string-01d/operator_subs-09.adoc[operator[]](xref:bsl/basic_string-01d/size_type.adoc[size_type] position);
----

[.small]#xref:bsl/basic_string-01d/operator_subs-09.adoc[_» more..._]#

Return a reference providing non‐modifiable access to the character at the specified `position` in this string. The behavior is undefined unless `position <= length()`. Note that if `position == length()`, a reference to the null‐terminating character is returned.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/basic_string-01d/const_reference.adoc[const_reference]
xref:bsl/basic_string-01d/operator_subs-0a.adoc[operator[]](xref:bsl/basic_string-01d/size_type.adoc[size_type] position) const;
----

[.small]#xref:bsl/basic_string-01d/operator_subs-0a.adoc[_» more..._]#


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