From 0396f400a97f71bf743d584acc71a0cdbc155566 Mon Sep 17 00:00:00 2001
From: Stefan Boberg <stefan@boberg.org>
Date: Fri, 30 Jun 2023 11:07:10 +0200
Subject: * Added Guid::FromString * Added LoadCompactBinaryObject from file to
 compactbinaryfile.cpp/h * Added SaveCompactBinary(BinaryWriter& Ar, ...)
 functions * Added ZEN_PLATFORM_NAME define * Added SystemMetrics
 functionality to query system properties (see zencore/system.h)

---
 src/zencore/compactbinary.cpp | 48 +++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 46 insertions(+), 2 deletions(-)

(limited to 'src/zencore/compactbinary.cpp')

diff --git a/src/zencore/compactbinary.cpp b/src/zencore/compactbinary.cpp
index 0db9f02ea..5b599dda3 100644
--- a/src/zencore/compactbinary.cpp
+++ b/src/zencore/compactbinary.cpp
@@ -358,6 +358,34 @@ Guid::ToString(StringBuilderBase& Sb) const
 	return Sb;
 }
 
+Guid
+Guid::FromString(std::string_view InString)
+{
+	if (InString.size() != 36)
+	{
+	}
+
+	bool Ok = true;
+
+	uint32_t V0 = 0, V5 = 0;
+	uint16_t V1 = 0, V2 = 0, V3 = 0, V4 = 0;
+
+	Ok = Ok && ParseHexNumber(InString.substr(0, 8), /* out */ V0);
+	Ok = Ok && ParseHexNumber(InString.substr(9, 4), /* out */ V1);
+	Ok = Ok && ParseHexNumber(InString.substr(14, 4), /* out */ V2);
+	Ok = Ok && ParseHexNumber(InString.substr(19, 4), /* out */ V3);
+	Ok = Ok && ParseHexNumber(InString.substr(24, 4), /* out */ V4);
+	Ok = Ok && ParseHexNumber(InString.substr(28, 8), /* out */ V5);
+
+	Guid Value;
+	Value.A = V0;
+	Value.B = V1 << 16 | V2;
+	Value.C = V3 << 16 | V4;
+	Value.D = V5;
+
+	return Value;
+}
+
 //////////////////////////////////////////////////////////////////////////
 
 namespace CompactBinaryPrivate {
@@ -1943,6 +1971,22 @@ uson_forcelink()
 {
 }
 
+TEST_CASE("guid")
+{
+	using namespace std::literals;
+
+	const Guid A = Guid::FromString("03000c43-d267-36fd-9164-a7555824822b"sv);
+
+	StringBuilder<40> GuidStr;
+	A.ToString(GuidStr);
+
+	CHECK(std::string_view(GuidStr) == "03000c43-d267-36fd-9164-a7555824822b"sv);
+
+	const Guid B = Guid::FromString(GuidStr);
+
+	CHECK(A == B);
+}
+
 TEST_CASE("uson")
 {
 	using namespace std::literals;
@@ -2142,8 +2186,8 @@ TEST_CASE("uson.json")
 
 	SUBCASE("number.nan")
 	{
-		const float	 FloatNan  = std::numeric_limits<float>::quiet_NaN();
-		const double DoubleNan = std::numeric_limits<double>::quiet_NaN();
+		constexpr float	 FloatNan  = std::numeric_limits<float>::quiet_NaN();
+		constexpr double DoubleNan = std::numeric_limits<double>::quiet_NaN();
 
 		CbObjectWriter Writer;
 		Writer << "FloatNan" << FloatNan;
-- 
cgit v1.2.3