libc/src/stdlib/qsort_r.h

   1 //===-- Implementation header for qsort_r -----------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef LLVM_LIBC_SRC_STDLIB_QSORT_R_H
  10 #define LLVM_LIBC_SRC_STDLIB_QSORT_R_H
  11
  12 #include <stdlib.h>
  13
  14 namespace LIBC_NAMESPACE {
  15
  16 // This qsort_r uses the glibc argument ordering instead of the BSD argument
  17 // ordering (which puts arg before the function pointer). Putting arg after the
  18 // function pointer more closely matches the ordering for qsort_s, which is the
  19 // standardized equivalent of qsort_r.
  20
  21 void qsort_r(void *array, size_t array_size, size_t elem_size,
  22              int (*compare)(const void *, const void *, void *), void *arg);
  23
  24 } // namespace LIBC_NAMESPACE
  25
  26 #endif // LLVM_LIBC_SRC_STDLIB_QSORT_R_H