From 619def44c1cca9f3cdf63544d5f24f2c7a7d9b77 Mon Sep 17 00:00:00 2001
From: Klaus Aehlig <klaus.aehlig@huawei.com>
Date: Tue, 22 Feb 2022 17:03:21 +0100
Subject: Initial self-hosting commit

This is the initial version of our tool that is able to
build itself. In can be bootstrapped by

  ./bin/bootstrap.py

Co-authored-by: Oliver Reiche <oliver.reiche@huawei.com>
Co-authored-by: Victor Moreno <victor.moreno1@huawei.com>
---
 src/utils/cpp/hex_string.hpp | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 src/utils/cpp/hex_string.hpp

(limited to 'src/utils/cpp/hex_string.hpp')

diff --git a/src/utils/cpp/hex_string.hpp b/src/utils/cpp/hex_string.hpp
new file mode 100644
index 00000000..86ea1b9e
--- /dev/null
+++ b/src/utils/cpp/hex_string.hpp
@@ -0,0 +1,19 @@
+#ifndef INCLUDED_SRC_UTILS_CPP_HEX_STRING_HPP
+#define INCLUDED_SRC_UTILS_CPP_HEX_STRING_HPP
+
+#include <iomanip>
+#include <sstream>
+#include <string>
+
+[[nodiscard]] static inline auto ToHexString(std::string const& bytes)
+    -> std::string {
+    std::ostringstream ss{};
+    ss << std::hex << std::setfill('0');
+    for (auto const& b : bytes) {
+        ss << std::setw(2)
+           << static_cast<int>(static_cast<unsigned char const>(b));
+    }
+    return ss.str();
+}
+
+#endif  // INCLUDED_SRC_UTILS_CPP_HEX_STRING_HPP
-- 
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