remove signal generator

.ccls-cache/@@mnt@raid@projects@dsp@harmonica@harmonica/@usr@include@c++@15.2.1@bits@charconv.h

@@ -0,0 +1,118 @@
+// Numeric conversions (to_string, to_chars) -*- C++ -*-
+
+// Copyright (C) 2017-2025 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/charconv.h
+ *  This is an internal header file, included by other library headers.
+ *  Do not attempt to use it directly. @headername{charconv}
+ */
+
+#ifndef _GLIBCXX_CHARCONV_H
+#define _GLIBCXX_CHARCONV_H 1
+
+#ifdef _GLIBCXX_SYSHDR
+#pragma GCC system_header
+#endif
+
+#if __cplusplus >= 201103L
+
+#include <type_traits>
+#include <ext/numeric_traits.h>
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+namespace __detail
+{
+#if __cpp_variable_templates
+  // This accepts 128-bit integers even in strict mode.
+  template<typename _Tp>
+    constexpr bool __integer_to_chars_is_unsigned
+      = ! __gnu_cxx::__int_traits<_Tp>::__is_signed;
+#endif
+
+  // Generic implementation for arbitrary bases.
+  template<typename _Tp>
+    _GLIBCXX14_CONSTEXPR unsigned
+    __to_chars_len(_Tp __value, int __base = 10) noexcept
+    {
+#if __cpp_variable_templates
+      static_assert(__integer_to_chars_is_unsigned<_Tp>, "implementation bug");
+#endif
+
+      unsigned __n = 1;
+      const unsigned __b2 = __base  * __base;
+      const unsigned __b3 = __b2 * __base;
+      const unsigned long __b4 = __b3 * __base;
+      for (;;)
+	{
+	  if (__value < (unsigned)__base) return __n;
+	  if (__value < __b2) return __n + 1;
+	  if (__value < __b3) return __n + 2;
+	  if (__value < __b4) return __n + 3;
+	  __value /= __b4;
+	  __n += 4;
+	}
+    }
+
+  // Write an unsigned integer value to the range [first,first+len).
+  // The caller is required to provide a buffer of exactly the right size
+  // (which can be determined by the __to_chars_len function).
+  template<typename _Tp>
+    _GLIBCXX23_CONSTEXPR void
+    __to_chars_10_impl(char* __first, unsigned __len, _Tp __val) noexcept
+    {
+#if __cpp_variable_templates
+      static_assert(__integer_to_chars_is_unsigned<_Tp>, "implementation bug");
+#endif
+
+      constexpr char __digits[201] =
+	"0001020304050607080910111213141516171819"
+	"2021222324252627282930313233343536373839"
+	"4041424344454647484950515253545556575859"
+	"6061626364656667686970717273747576777879"
+	"8081828384858687888990919293949596979899";
+      unsigned __pos = __len - 1;
+      while (__val >= 100)
+	{
+	  auto const __num = (__val % 100) * 2;
+	  __val /= 100;
+	  __first[__pos] = __digits[__num + 1];
+	  __first[__pos - 1] = __digits[__num];
+	  __pos -= 2;
+	}
+      if (__val >= 10)
+	{
+	  auto const __num = __val * 2;
+	  __first[1] = __digits[__num + 1];
+	  __first[0] = __digits[__num];
+	}
+      else
+	__first[0] = '0' + __val;
+    }
+
+} // namespace __detail
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+#endif // C++11
+#endif // _GLIBCXX_CHARCONV_H