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README.rst
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README.rst
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.. highlight: c++
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C++ Format
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==========
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@ -56,21 +54,23 @@ See the `documentation <http://cppformat.readthedocs.org/en/latest/>`_ for more
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Examples
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--------
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This prints ``Hello, world!`` to stdout::
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This prints ``Hello, world!`` to stdout:
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.. code:: c++
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fmt::print("Hello, {}!", "world"); // uses Python-like format string syntax
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fmt::printf("Hello, %s!", "world"); // uses printf format string syntax
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Arguments can be accessed by position and arguments' indices can be repeated:
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.. code-block:: c++
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.. code:: c++
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std::string s = fmt::format("{0}{1}{0}", "abra", "cad");
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// s == "abracadabra"
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C++ Format can be used as a safe portable replacement for ``itoa``:
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.. code-block:: c++
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.. code:: c++
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fmt::MemoryWriter w;
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w << 42; // replaces itoa(42, buffer, 10)
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@ -80,7 +80,7 @@ C++ Format can be used as a safe portable replacement for ``itoa``:
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An object of any user-defined type for which there is an overloaded
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:code:`std::ostream` insertion operator (``operator<<``) can be formatted:
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.. code-block:: c++
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.. code:: c++
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class Date {
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int year_, month_, day_;
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@ -102,7 +102,7 @@ macro to create your own functions similar to `format
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`print <http://cppformat.readthedocs.org/en/latest#fmt::print__StringRef.ArgListCR>`_
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which take arbitrary arguments:
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.. code-block:: c++
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.. code:: c++
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// Prints formatted error message.
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void report_error(const char *format, fmt::ArgList args) {
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@ -166,13 +166,13 @@ IOStreams
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The main issue with IOStreams is best illustrated with an example:
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.. code-block:: c++
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.. code:: c++
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std::cout << std::setprecision(2) << std::fixed << 1.23456 << "\n";
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which is a lot of typing compared to printf:
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.. code-block:: c++
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.. code:: c++
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printf("%.2f\n", 1.23456);
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