xref: /llvm-project/libc/src/stdlib/qsort_r.h (revision 33bdb53d864e3e244d8fd5649062f17b7d4c958d)
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 "hdr/types/size_t.h"
13 #include "src/__support/macros/config.h"
14 
15 namespace LIBC_NAMESPACE_DECL {
16 
17 // This qsort_r uses the glibc argument ordering instead of the BSD argument
18 // ordering (which puts arg before the function pointer). Putting arg after the
19 // function pointer more closely matches the ordering for qsort_s, which is the
20 // standardized equivalent of qsort_r.
21 
22 void qsort_r(void *array, size_t array_size, size_t elem_size,
23              int (*compare)(const void *, const void *, void *), void *arg);
24 
25 } // namespace LIBC_NAMESPACE_DECL
26 
27 #endif // LLVM_LIBC_SRC_STDLIB_QSORT_R_H
28