Merge branch 'fmtlib:master' into zig-pkg

ChangeLog.rst

@@ -1,42 +1,182 @@
 10.1.0 - TBD
 ------------
 
-* Fixed ambiguous formatter specialization for containers that look like
-  container adaptors (`#3556 <https://github.com/fmtlib/fmt/issues/3556>`_,
+* Optimized format string compilation resulting in up to 40% speed up in
+  compiled ``format_to`` and ~4x speed up in compiled ``format_to_n`` on a
+  concatenation benchmark (`#3133 <https://github.com/fmtlib/fmt/issues/3133>`_,
+  `#3484 <https://github.com/fmtlib/fmt/issues/3484>`_).
+
+  {fmt} 10.0::
+
+    ---------------------------------------------------------
+    Benchmark               Time             CPU   Iterations
+    ---------------------------------------------------------
+    BM_format_to         78.9 ns         78.9 ns      8881746
+    BM_format_to_n        568 ns          568 ns      1232089
+
+  {fmt} 10.1::
+
+    ---------------------------------------------------------
+    Benchmark               Time             CPU   Iterations
+    ---------------------------------------------------------
+    BM_format_to         54.9 ns         54.9 ns     12727944
+    BM_format_to_n        133 ns          133 ns      5257795
+
+* Optimized storage of an empty allocator in ``basic_memory_buffer``
+  (`#3485 <https://github.com/fmtlib/fmt/pull/3485>`_).
+  Thanks `@Minty-Meeo <https://github.com/Minty-Meeo>`_.
+
+* Added formatters for proxy references to elements of ``std::vector<bool>`` and
+  ``std::bitset<N>`` (`#3567 <https://github.com/fmtlib/fmt/issues/3567>`_,
+  `#3570 <https://github.com/fmtlib/fmt/pull/3570>`_).
+  For example (`godbolt <https://godbolt.org/z/zYb79Pvn8>`__):
+
+  .. code:: c++
+
+     #include <vector>
+     #include <fmt/std.h>
+
+     int main() {
+       auto v = std::vector<bool>{true};
+       fmt::print("{}", v[0]);
+     }
+
+  Thanks `@phprus (Vladislav Shchapov) <https://github.com/phprus>`_ and
+  `@felix642 (Félix-Antoine Constantin) <https://github.com/felix642>`_.
+
+* Fixed an ambiguous formatter specialization for containers that look like
+  container adaptors such as ``boost::flat_set``
+  (`#3556 <https://github.com/fmtlib/fmt/issues/3556>`_,
   `#3561 <https://github.com/fmtlib/fmt/pull/3561>`_).
   Thanks `@5chmidti <https://github.com/5chmidti>`_.
 
 * Fixed compilation when formatting durations not convertible from
   ``std::chrono::seconds`` (`#3430 <https://github.com/fmtlib/fmt/pull/3430>`_).
   Thanks `@patlkli (Patrick Geltinger) <https://github.com/patlkli>`_.
 
+* Made the ``formatter`` specialization for ``char*`` const-correct
+  (`#3432 <https://github.com/fmtlib/fmt/pull/3432>`_).
+  Thanks `@timsong-cpp <https://github.com/timsong-cpp>`_.
+
+* Made ``{}`` and ``{:}`` handled consistently during compile-time checks
+  (`#3526 <https://github.com/fmtlib/fmt/issues/3526>`_).
+
 * Disallowed passing temporaries to ``make_format_args`` to improve API safety
   by preventing dangling references.
 
-* Made floating-point formatting tests more platform-independent
-  (`#3433 <https://github.com/fmtlib/fmt/issues/3433>`_,
+* Improved the compile-time error for unformattable types
+  (`#3478 <https://github.com/fmtlib/fmt/pull/3478>`_).
+  Thanks `@BRevzin (Barry Revzin) <https://github.com/BRevzin>`_.
+
+* Improved the floating-point formatter
+  (`#3448 <https://github.com/fmtlib/fmt/pull/3448>`_,
+  `#3450 <https://github.com/fmtlib/fmt/pull/3450>`_).
+  Thanks `@florimond-collette (Florimond Collette)
+  <https://github.com/florimond-collette>`_.
+
+* Fixed handling of precision for ``long double`` larger than 64 bits.
+  (`#3539 <https://github.com/fmtlib/fmt/issues/3539>`_,
+  `#3564 <https://github.com/fmtlib/fmt/issues/3564>`_).
+
+* Made floating-point and chrono tests less platform-dependent
+  (`#3337 <https://github.com/fmtlib/fmt/issues/3337>`_,
+  `#3433 <https://github.com/fmtlib/fmt/issues/3433>`_,
   `#3434 <https://github.com/fmtlib/fmt/pull/3434>`_).
   Thanks `@phprus (Vladislav Shchapov) <https://github.com/phprus>`_.
 
+* Removed the remnants of the Grisu floating-point formatter that has been
+  replaced by Dragonbox in earlier versions.
+
+* Added ``throw_format_error`` to the public API
+  (`#3551 <https://github.com/fmtlib/fmt/pull/3551>`_).
+  Thanks `@mjerabek (Martin Jeřábek) <https://github.com/mjerabek>`_.
+
 * Made ``FMT_THROW`` assert even if assertions are disabled when compiling with
   exceptions disabled (`#3418 <https://github.com/fmtlib/fmt/issues/3418>`_,
   `#3439 <https://github.com/fmtlib/fmt/pull/3439>`_).
-  `@BRevzin (Barry Revzin) <https://github.com/BRevzin>`_.
+  Thanks `@BRevzin (Barry Revzin) <https://github.com/BRevzin>`_.
+
+* Made ``format_as`` and ``std::filesystem::path`` formatter work with exotic
+  code unit types.
+  (`#3457 <https://github.com/fmtlib/fmt/pull/3457>`_,
+  `#3476 <https://github.com/fmtlib/fmt/pull/3476>`_).
+  Thanks `@gix (Nico Rieck) <https://github.com/gix>`_,
+  `@hmbj (Hans-Martin B. Jensen) <https://github.com/hmbj>`_.
 
 * Deprecated the wide stream overload of ``printf``.
 
 * Removed unused ``basic_printf_parse_context``.
 
-* Improved documentation.
+* Improved RTTI detection used when formatting exceptions
+  (`#3468 <https://github.com/fmtlib/fmt/pull/3468>`_).
+  Thanks `@danakj (Dana Jansens) <https://github.com/danakj>`_.
 
-* Improved build configuration
-  (`#3563 <https://github.com/fmtlib/fmt/pull/3563>`_).
-  Thanks `@abouvier (Alexandre Bouvier) <https://github.com/abouvier>`_.
+* Improved compatibility with VxWorks7
+  (`#3467 <https://github.com/fmtlib/fmt/pull/3467>`_).
+  Thanks `@wenshan1 (Bin Lan) <https://github.com/wenshan1>`_.
+
+* Improved documentation
+  (`#3174 <https://github.com/fmtlib/fmt/issues/3174>`_,
+  `#3423 <https://github.com/fmtlib/fmt/issues/3423>`_,
+  `#3454 <https://github.com/fmtlib/fmt/pull/3454>`_,
+  `#3458 <https://github.com/fmtlib/fmt/issues/3458>`_,
+  `#3461 <https://github.com/fmtlib/fmt/pull/3461>`_,
+  `#3487 <https://github.com/fmtlib/fmt/issues/3487>`_,
+  `#3515 <https://github.com/fmtlib/fmt/pull/3515>`_).
+  Thanks `@zencatalyst (Kasra Hashemi) <https://github.com/zencatalyst>`_,
+  `@rlalik <https://github.com/rlalik>`_,
+  `@mikecrowe (Mike Crowe) <https://github.com/mikecrowe>`_.
+
+* Improved build and CI configurations
+  (`#3449 <https://github.com/fmtlib/fmt/issues/3449>`_,
+  `#3451 <https://github.com/fmtlib/fmt/pull/3451>`_,
+  `#3452 <https://github.com/fmtlib/fmt/pull/3452>`_,
+  `#3453 <https://github.com/fmtlib/fmt/pull/3453>`_,
+  `#3459 <https://github.com/fmtlib/fmt/pull/3459>`_,
+  `#3481 <https://github.com/fmtlib/fmt/issues/3481>`_,
+  `#3486 <https://github.com/fmtlib/fmt/pull/3486>`_,
+  `#3489 <https://github.com/fmtlib/fmt/issues/3489>`_,
+  `#3496 <https://github.com/fmtlib/fmt/pull/3496>`_,
+  `#3517 <https://github.com/fmtlib/fmt/issues/3517>`_,
+  `#3523 <https://github.com/fmtlib/fmt/pull/3523>`_,
+  `#3563 <https://github.com/fmtlib/fmt/pull/3563>`_).
+  Thanks `@joycebrum (Joyce) <https://github.com/joycebrum>`_,
+  `@glebm (Gleb Mazovetskiy) <https://github.com/glebm>`_,
+  `@phprus (Vladislav Shchapov) <https://github.com/phprus>`_,
+  `@petrmanek (Petr Mánek) <https://github.com/petrmanek>`_,
+  `@setoye (Alta) <https://github.com/setoye>`_,
+  `@abouvier (Alexandre Bouvier) <https://github.com/abouvier>`_.
 
 * Fixed various warnings and compilation issues
-  (`#3444 <https://github.com/fmtlib/fmt/issues/3444>`_,
-  `#3446 <https://github.com/fmtlib/fmt/pull/3446>`_).
-  Thanks `@adesitter (Arnaud Desitter) <https://github.com/adesitter>`_.
+  (`#3408 <https://github.com/fmtlib/fmt/issues/3408>`_,
+  `#3424 <https://github.com/fmtlib/fmt/issues/3424>`_,
+  `#3444 <https://github.com/fmtlib/fmt/issues/3444>`_,
+  `#3446 <https://github.com/fmtlib/fmt/pull/3446>`_,
+  `#3475 <https://github.com/fmtlib/fmt/pull/3475>`_,
+  `#3482 <https://github.com/fmtlib/fmt/pull/3482>`_,
+  `#3492 <https://github.com/fmtlib/fmt/issues/3492>`_,
+  `#3493 <https://github.com/fmtlib/fmt/pull/3493>`_,
+  `#3508 <https://github.com/fmtlib/fmt/pull/3508>`_,
+  `#3509 <https://github.com/fmtlib/fmt/issues/3509>`_,
+  `#3533 <https://github.com/fmtlib/fmt/issues/3533>`_,
+  `#3542 <https://github.com/fmtlib/fmt/pull/3542>`_,
+  `#3543 <https://github.com/fmtlib/fmt/issues/3543>`_,
+  `#3540 <https://github.com/fmtlib/fmt/issues/3540>`_,
+  `#3544 <https://github.com/fmtlib/fmt/pull/3544>`_,
+  `#3548 <https://github.com/fmtlib/fmt/issues/3548>`_,
+  `#3549 <https://github.com/fmtlib/fmt/pull/3549>`_,
+  `#3550 <https://github.com/fmtlib/fmt/pull/3550>`_,
+  `#3552 <https://github.com/fmtlib/fmt/pull/3552>`_).
+  Thanks `@adesitter (Arnaud Desitter) <https://github.com/adesitter>`_,
+  `@hmbj (Hans-Martin B. Jensen) <https://github.com/hmbj>`_,
+  `@Minty-Meeo <https://github.com/Minty-Meeo>`_,
+  `@phprus (Vladislav Shchapov) <https://github.com/phprus>`_,
+  `@TobiSchluter (Tobias Schlüter) <https://github.com/TobiSchluter>`_,
+  `@kieranclancy (Kieran Clancy) <https://github.com/kieranclancy>`_,
+  `@alexeedm (Dmitry Alexeev) <https://github.com/alexeedm>`_,
+  `@jurihock (Jürgen Hock) <https://github.com/jurihock>`_,
+  `@Ozomahtli <https://github.com/Ozomahtli>`_,
+  `@razaqq <https://github.com/razaqq>`_.
 
 10.0.0 - 2023-05-09
 -------------------

include/fmt/core.h

@@ -18,7 +18,7 @@
 #include <type_traits>
 
 // The fmt library version in the form major * 10000 + minor * 100 + patch.
-#define FMT_VERSION 100001
+#define FMT_VERSION 100100
 
 #if defined(__clang__) && !defined(__ibmxl__)
 #  define FMT_CLANG_VERSION (__clang_major__ * 100 + __clang_minor__)

include/fmt/format.h

@@ -920,7 +920,7 @@ class basic_memory_buffer final : public detail::buffer<T> {
  private:
   T store_[SIZE];
 
-  // Don't inherit from Allocator avoid generating type_info for it.
+  // Don't inherit from Allocator to avoid generating type_info for it.
   FMT_NO_UNIQUE_ADDRESS Allocator alloc_;
 
   // Deallocate memory allocated by the buffer.
@@ -3178,7 +3178,8 @@ FMT_CONSTEXPR20 inline void format_dragon(basic_fp<uint128_t> value,
       }
       if (buf[0] == overflow) {
         buf[0] = '1';
-        ++exp10;
+        if ((flags & dragon::fixed) != 0) buf.push_back('0');
+        else ++exp10;
       }
       return;
     }

support/rst2md.py

@@ -138,6 +138,13 @@ def visit_table(self, node):
     def depart_table(self, node):
         pass
 
+    def visit_system_message(self, node):
+        pass
+
+    def depart_system_message(self, node):
+        pass
+
+
 class MDWriter(writers.Writer):
     """GitHub-flavored markdown writer"""
 

test/format-test.cc

@@ -1472,6 +1472,7 @@ TEST(format_test, format_long_double) {
   EXPECT_EQ("0", fmt::format("{0:}", 0.0l));
   EXPECT_EQ("0.000000", fmt::format("{0:f}", 0.0l));
   EXPECT_EQ("0.0", fmt::format("{:.1f}", 0.000000001l));
+  EXPECT_EQ("0.10", fmt::format("{:.2f}", 0.099l));
   EXPECT_EQ("392.65", fmt::format("{0:}", 392.65l));
   EXPECT_EQ("392.65", fmt::format("{0:g}", 392.65l));
   EXPECT_EQ("392.65", fmt::format("{0:G}", 392.65l));