672f7ad747ecc6e04472f96fa88332be1f39d39b doc: remove usages of C++11 (fanquake)
Pull request description:
These were new in C++11, and now they are just our standard library.
ACKs for top commit:
jarolrod:
re-ACK 672f7ad747ecc6e04472f96fa88332be1f39d39b
hebasto:
re-ACK 672f7ad747ecc6e04472f96fa88332be1f39d39b
Tree-SHA512: 7e3b8b0346ba29b19e6d8536700ca510e2b543cdeecd9e740bba71ea6d0133dd96cdaeaa00f371f8ef85913ff5aaabe12878255f393dac7d354a8b89b58d050a
64fb0ac Declare single-argument (non-converting) constructors "explicit" (practicalswift)
Pull request description:
Declare single-argument (non-converting) constructors `explicit`.
In order to avoid unintended implicit conversions.
For a more thorough discussion, see ["C.46: By default, declare single-argument constructors explicit"](http://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#c46-by-default-declare-single-argument-constructors-explicit) in the C++ Core Guidelines (Stroustrup & Sutter).
Tree-SHA512: e0c6922e56b11fa402621a38656d8b1122d16dd8f160e78626385373cf184ac7f26cb4c1851eca47e9b0dbd5e924e39a85c3cbdcb627a05ee3a655ecf5f7a0f1
4d4fb33fc Rename member field according to the style guide. (Pavel Janík)
Pull request description:
After #10193, approx. five instances of this warning are printed when compiling with `-Wshadow`:
```
In file included from txmempool.cpp:14:
./reverse_iterator.h:20:22: warning: declaration shadows a field of 'reverse_range<T>' [-Wshadow]
reverse_range(T &x) : x(x) {}
^
./reverse_iterator.h:17:8: note: previous declaration is here
T &x;
^
1 warning generated.
```
Tree-SHA512: 6c07c2ed6f4f232a3a8bdcdd6057040967c74552fd29d80f42e8a453b95baf203c410aa31dccc08ff2e765cbba02b1a282f6ea7804955f09b31ab20ef383792e
