libstdc++: Fix -Wunused-parameter in <experimental/internet>

libstdc++-v3/ChangeLog:

	* include/experimental/internet (address_v4::to_string): Remove
	unused parameter name.

diff --git a/libstdc++-v3/include/experimental/internet b/libstdc++-v3/include/experimental/internet
index bd9a05f12aa9ae0e75197b7028c99eb7c96119f6..173913a8cec5246e5b3bc94312241ef983fd426e 100644 (file)
--- a/libstdc++-v3/include/experimental/internet
+++ b/libstdc++-v3/include/experimental/internet
@@ -252,7 +252,7 @@ namespace ip
       __string_with<_Allocator>
       to_string(const _Allocator& __a = _Allocator()) const
       {
-       auto __write = [__addr = to_uint()](char* __p, size_t __n) {
+       auto __write = [__addr = to_uint()](char* __p, size_t) {
          auto __to_chars = [](char* __p, uint8_t __v) {
            unsigned __n = __v >= 100u ? 3 : __v >= 10u ? 2 : 1;
            std::__detail::__to_chars_10_impl(__p, __n, __v);