From e8b0b1b03631398c63927f1d1c2ce0e510bb1cd4 Mon Sep 17 00:00:00 2001
From: =?utf8?q?=EB=B0=95=EC=A2=85=ED=98=84/=EB=8F=99=EC=9E=91=EC=A0=9C?=
 =?utf8?q?=EC=96=B4Lab=28SR=29/Staff=20Engineer/=EC=82=BC=EC=84=B1?=
 =?utf8?q?=EC=A0=84=EC=9E=90?= <jh1302.park@samsung.com>
Date: Thu, 7 Jun 2018 18:39:20 +0900
Subject: [PATCH] Add StrVar class (#1599)

This commit adds StrVar class which reads string value from environment
(as it is). Default value will be used if corresponding environment variable
does not exists.

Signed-off-by: Jonghyun Park <jh1302.park@samsung.com>
---
 tools/nnapi_unittests/inc/env.h   | 12 ++++++++++++
 tools/nnapi_unittests/lib/env.cpp | 15 +++++++++++++++
 2 files changed, 27 insertions(+)

diff --git a/tools/nnapi_unittests/inc/env.h b/tools/nnapi_unittests/inc/env.h
index 8926dab..95b3875 100644
--- a/tools/nnapi_unittests/inc/env.h
+++ b/tools/nnapi_unittests/inc/env.h
@@ -33,4 +33,16 @@ private:
   int32_t _value;
 };
 
+class StrVar
+{
+public:
+  StrVar(const std::string &name, const std::string &value);
+
+public:
+  const std::string &operator()(void) const { return _value; }
+
+private:
+  std::string _value;
+};
+
 #endif // __ENV_UTILS_H__
diff --git a/tools/nnapi_unittests/lib/env.cpp b/tools/nnapi_unittests/lib/env.cpp
index efad443..f0646ed 100644
--- a/tools/nnapi_unittests/lib/env.cpp
+++ b/tools/nnapi_unittests/lib/env.cpp
@@ -25,3 +25,18 @@ IntVar::IntVar(const std::string &name, int32_t value) : _value{value}
 {
   nnfw::util::env::IntAccessor{name}.access(_value);
 }
+
+//
+// String variable
+//
+#include <cstdlib>
+
+StrVar::StrVar(const std::string &name, const std::string &value) : _value{value}
+{
+  auto env = std::getenv(name.c_str());
+
+  if (env)
+  {
+    _value = std::string{env};
+  }
+}
-- 
2.7.4