diff --git a/README.rst b/README.rst
index 8dff38e3..39ebf7e7 100644
--- a/README.rst
+++ b/README.rst
@@ -12,7 +12,7 @@
:target: https://gitter.im/fmtlib/fmt
**{fmt}** is an open-source formatting library for C++.
-It can be used as a safe and fast alternative to (s)printf and IOStreams.
+It can be used as a safe and fast alternative to (s)printf and iostreams.
`Documentation `__
@@ -32,7 +32,7 @@ Features
* Support for user-defined types.
* High performance: faster than common standard library implementations of
`printf `_ and
- IOStreams. See `Speed tests`_ and `Fast integer to string conversion in C++
+ iostreams. See `Speed tests`_ and `Fast integer to string conversion in C++
`_.
* Small code size both in terms of source code (the minimum configuration
consists of just three header files, ``core.h``, ``format.h`` and
@@ -243,7 +243,7 @@ Motivation
So why yet another formatting library?
There are plenty of methods for doing this task, from standard ones like
-the printf family of function and IOStreams to Boost Format and FastFormat
+the printf family of function and iostreams to Boost Format and FastFormat
libraries. The reason for creating a new library is that every existing
solution that I found either had serious issues or didn't provide
all the features I needed.
@@ -261,10 +261,10 @@ There is a POSIX extension that adds positional arguments required for
to printf but it is not a part of C99 and may not be available on some
platforms.
-IOStreams
+iostreams
~~~~~~~~~
-The main issue with IOStreams is best illustrated with an example:
+The main issue with iostreams is best illustrated with an example:
.. code:: c++
@@ -276,11 +276,11 @@ which is a lot of typing compared to printf:
printf("%.2f\n", 1.23456);
-Matthew Wilson, the author of FastFormat, called this "chevron hell". IOStreams
-doesn't support positional arguments by design.
+Matthew Wilson, the author of FastFormat, called this "chevron hell". iostreams
+don't support positional arguments by design.
-The good part is that IOStreams supports user-defined types and is safe
-although error reporting is awkward.
+The good part is that iostreams support user-defined types and are safe although
+error reporting is awkward.
Boost Format library
~~~~~~~~~~~~~~~~~~~~
@@ -321,13 +321,13 @@ Tinyformat
This library supports printf-like format strings and is very small and
fast. Unfortunately it doesn't support positional arguments and wrapping
it in C++98 is somewhat difficult. Also its performance and code compactness
-are limited by IOStreams.
+are limited by iostreams.
Boost Spirit.Karma
~~~~~~~~~~~~~~~~~~
This is not really a formatting library but I decided to include it here
-for completeness. As IOStreams it suffers from the problem of mixing
+for completeness. As iostreams it suffers from the problem of mixing
verbatim text with arguments. The library is pretty fast, but slower
on integer formatting than ``fmt::Writer`` on Karma's own benchmark,
see `Fast integer to string conversion in C++
@@ -378,7 +378,7 @@ Method Compile Time, s Executable size, KiB Stripped size, KiB
============= =============== ==================== ==================
printf 2.6 29 26
printf+string 16.4 29 26
-IOStreams 31.1 59 55
+iostreams 31.1 59 55
fmt 19.0 37 34
tinyformat 44.0 103 97
Boost Format 91.9 226 203
@@ -386,7 +386,7 @@ Folly Format 115.7 101 88
============= =============== ==================== ==================
As you can see, fmt has 60% less overhead in terms of resulting binary code
-size compared to IOStreams and comes pretty close to ``printf``. Boost Format
+size compared to iostreams and comes pretty close to ``printf``. Boost Format
and Folly Format have the largest overheads.
``printf+string`` is the same as ``printf`` but with extra ````
@@ -399,7 +399,7 @@ Method Compile Time, s Executable size, KiB Stripped size, KiB
============= =============== ==================== ==================
printf 2.2 33 30
printf+string 16.0 33 30
-IOStreams 28.3 56 52
+iostreams 28.3 56 52
fmt 18.2 59 50
tinyformat 32.6 88 82
Boost Format 54.1 365 303