remove signal generator

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

@@ -0,0 +1,162 @@
+// -*- C++ -*- C library enhancements header.
+
+// Copyright (C) 2016-2025 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 include/bits/std_abs.h
+ *  This is an internal header file, included by other library headers.
+ *  Do not attempt to use it directly. @headername{cmath, cstdlib}
+ */
+
+#ifndef _GLIBCXX_BITS_STD_ABS_H
+#define _GLIBCXX_BITS_STD_ABS_H
+
+#ifdef _GLIBCXX_SYSHDR
+#pragma GCC system_header
+#endif
+
+#include <bits/c++config.h>
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpedantic" // include_next
+#pragma GCC diagnostic ignored "-Wlong-long"
+
+#define _GLIBCXX_INCLUDE_NEXT_C_HEADERS
+#include_next <stdlib.h>
+#ifdef __CORRECT_ISO_CPP_MATH_H_PROTO
+# include_next <math.h>
+#endif
+#undef _GLIBCXX_INCLUDE_NEXT_C_HEADERS
+
+#undef abs
+
+extern "C++"
+{
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+  using ::abs;
+
+#ifndef __CORRECT_ISO_CPP_STDLIB_H_PROTO
+  inline long
+  abs(long __i) { return __builtin_labs(__i); }
+#endif
+
+#ifdef _GLIBCXX_USE_LONG_LONG
+  inline long long
+  abs(long long __x) { return __builtin_llabs (__x); }
+#endif
+
+// _GLIBCXX_RESOLVE_LIB_DEFECTS
+// 2192. Validity and return type of std::abs(0u) is unclear
+// 2294. <cstdlib> should declare abs(double)
+// 2735. std::abs(short), std::abs(signed char) and others should return int
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
+  inline _GLIBCXX_CONSTEXPR double
+  abs(double __x)
+  { return __builtin_fabs(__x); }
+
+  inline _GLIBCXX_CONSTEXPR float
+  abs(float __x)
+  { return __builtin_fabsf(__x); }
+
+  inline _GLIBCXX_CONSTEXPR long double
+  abs(long double __x)
+  { return __builtin_fabsl(__x); }
+#endif
+
+#if defined(__GLIBCXX_TYPE_INT_N_0)
+  __extension__ inline _GLIBCXX_CONSTEXPR __GLIBCXX_TYPE_INT_N_0
+  abs(__GLIBCXX_TYPE_INT_N_0 __x) { return __x >= 0 ? __x : -__x; }
+#endif
+#if defined(__GLIBCXX_TYPE_INT_N_1)
+  __extension__ inline _GLIBCXX_CONSTEXPR __GLIBCXX_TYPE_INT_N_1
+  abs(__GLIBCXX_TYPE_INT_N_1 __x) { return __x >= 0 ? __x : -__x; }
+#endif
+#if defined(__GLIBCXX_TYPE_INT_N_2)
+  __extension__ inline _GLIBCXX_CONSTEXPR __GLIBCXX_TYPE_INT_N_2
+  abs(__GLIBCXX_TYPE_INT_N_2 __x) { return __x >= 0 ? __x : -__x; }
+#endif
+#if defined(__GLIBCXX_TYPE_INT_N_3)
+  __extension__ inline _GLIBCXX_CONSTEXPR __GLIBCXX_TYPE_INT_N_3
+  abs(__GLIBCXX_TYPE_INT_N_3 __x) { return __x >= 0 ? __x : -__x; }
+#endif
+
+#if defined(__STDCPP_FLOAT16_T__) && defined(_GLIBCXX_FLOAT_IS_IEEE_BINARY32)
+  constexpr _Float16
+  abs(_Float16 __x)
+  { return _Float16(__builtin_fabsf(__x)); }
+#endif
+
+#if defined(__STDCPP_FLOAT32_T__) && defined(_GLIBCXX_FLOAT_IS_IEEE_BINARY32)
+  constexpr _Float32
+  abs(_Float32 __x)
+  { return __builtin_fabsf(__x); }
+#endif
+
+#if defined(__STDCPP_FLOAT64_T__) && defined(_GLIBCXX_DOUBLE_IS_IEEE_BINARY64)
+  constexpr _Float64
+  abs(_Float64 __x)
+  { return __builtin_fabs(__x); }
+#endif
+
+#if defined(__STDCPP_FLOAT128_T__) && defined(_GLIBCXX_LDOUBLE_IS_IEEE_BINARY128)
+  constexpr _Float128
+  abs(_Float128 __x)
+  { return __builtin_fabsl(__x); }
+#elif defined(__STDCPP_FLOAT128_T__) && defined(_GLIBCXX_HAVE_FLOAT128_MATH)
+  constexpr _Float128
+  abs(_Float128 __x)
+  { return __builtin_fabsf128(__x); }
+#endif
+
+#if defined(__STDCPP_BFLOAT16_T__) && defined(_GLIBCXX_FLOAT_IS_IEEE_BINARY32)
+  constexpr __gnu_cxx::__bfloat16_t
+  abs(__gnu_cxx::__bfloat16_t __x)
+  { return __gnu_cxx::__bfloat16_t(__builtin_fabsf(__x)); }
+#endif
+
+#if !defined(__STRICT_ANSI__) && defined(_GLIBCXX_USE_FLOAT128)
+  __extension__ inline _GLIBCXX_CONSTEXPR
+  __float128
+  abs(__float128 __x)
+  {
+#if defined(_GLIBCXX_LDOUBLE_IS_IEEE_BINARY128)
+    return __builtin_fabsl(__x);
+#elif defined(_GLIBCXX_HAVE_FLOAT128_MATH)
+    return __builtin_fabsf128(__x);
+#else
+    // Assume that __builtin_signbit works for __float128.
+    return __builtin_signbit(__x) ? -__x : __x;
+#endif
+  }
+#endif
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+} // extern "C++"
+
+#pragma GCC diagnostic pop
+
+#endif // _GLIBCXX_BITS_STD_ABS_H