boost::urls::params_encoded_ref::set

Synopsis

iterator
set(
    iterator pos,
    pct_string_view value);

iterator
set(
    pct_string_view key,
    pct_string_view value,
    ignore_case_param ic = {});

This function replaces the value of an element at the specified position.

All iterators that are equal to pos or come after are invalidated.

The string passed in must not come from the element being replaced, or else the behavior is undefined.

url u( "?id=42&id=69" );

u.encoded_params().set( u.encoded_params().begin(), "none" );

assert( u.encoded_query() == "id=none&id=69" );

Linear in this‐>url().encoded_query().size().

Strong guarantee. Calls to allocate may throw. Exceptions thrown on invalid input.

Name Thrown on

Name	Thrown on
`system_error`	`value` contains an invalid percent‐encoding.

system_error

value contains an invalid percent‐encoding.

An iterator to the element.

Name Description

Name	Description
pos	An iterator to the element.
value	The value to assign. The empty string still counts as a value. That is, `has_value` for the element is true.
key	The key to match. By default, a case‐sensitive comparison is used.
ic	An optional parameter. If the value ignore_case is passed here, the comparison is case‐insensitive.

pos

An iterator to the element.

value

The value to assign. The empty string still counts as a value. That is, has_value for the element is true.

key

The key to match. By default, a case‐sensitive comparison is used.

ic

An optional parameter. If the value ignore_case is passed here, the comparison is case‐insensitive.

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