#include "config/linux/syscall.h"
#include "utils/UnitTest/Test.h"
-#include <functional>
+#include "utils/CPP/Functional.h"
TEST(X86_64_SyscallTest, APITest) {
// We only do a signature test here. Actual functionality tests are
// done by the unit tests of the syscall wrappers like mmap.
- std::function<long(long)> f([](long n) { return __llvm_libc::syscall(n); });
- std::function<long(long, long)> f1(
+ using __llvm_libc::cpp::function;
+
+ function<long(long)> f([](long n) { return __llvm_libc::syscall(n); });
+ function<long(long, long)> f1(
[](long n, long a1) { return __llvm_libc::syscall(n, a1); });
- std::function<long(long, long, long)> f2(
+ function<long(long, long, long)> f2(
[](long n, long a1, long a2) { return __llvm_libc::syscall(n, a1, a2); });
- std::function<long(long, long, long, long)> f3(
+ function<long(long, long, long, long)> f3(
[](long n, long a1, long a2, long a3) {
return __llvm_libc::syscall(n, a1, a2, a3);
});
- std::function<long(long, long, long, long, long)> f4(
+ function<long(long, long, long, long, long)> f4(
[](long n, long a1, long a2, long a3, long a4) {
return __llvm_libc::syscall(n, a1, a2, a3, a4);
});
- std::function<long(long, long, long, long, long, long)> f5(
+ function<long(long, long, long, long, long, long)> f5(
[](long n, long a1, long a2, long a3, long a4, long a5) {
return __llvm_libc::syscall(n, a1, a2, a3, a4, a5);
});
- std::function<long(long, long, long, long, long, long, long)> f6(
+ function<long(long, long, long, long, long, long, long)> f6(
[](long n, long a1, long a2, long a3, long a4, long a5, long a6) {
return __llvm_libc::syscall(n, a1, a2, a3, a4, a5, a6);
});
- std::function<long(long, void *)> notLongType(
- [](long n, void *a1) {
- return __llvm_libc::syscall(n, a1);
- });
+ function<long(long, void *)> notLongType(
+ [](long n, void *a1) { return __llvm_libc::syscall(n, a1); });
}
--- /dev/null
+//===-- Self contained functional header ------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_UTILS_CPP_FUNCTIONAL_H
+#define LLVM_LIBC_UTILS_CPP_FUNCTIONAL_H
+
+namespace __llvm_libc {
+namespace cpp {
+
+template <typename Func> class function;
+
+template <typename Ret, typename... Params> class function<Ret(Params...)> {
+ Ret (*func)(Params...) = nullptr;
+
+public:
+ constexpr function() = default;
+ template <typename Func> constexpr function(Func &&f) : func(f) {}
+
+ constexpr Ret operator()(Params... params) { return func(params...); }
+};
+
+} // namespace cpp
+} // namespace __llvm_libc
+
+#endif // LLVM_LIBC_UTILS_CPP_FUNCTIONAL_H