Fixed getTempPath.

include/bx/os.h

@@ -237,14 +237,16 @@ namespace bx
 #else
 		const char* ptr = ::getenv(_name);
 		uint32_t len = 0;
+		bool result = false;
 		if (NULL != ptr)
 		{
 			len = (uint32_t)strlen(ptr);
-		}
-		bool result = len != 0 && len < *_inOutSize;
-		if (len < *_inOutSize)
-		{
-			strcpy(_out, ptr);
+
+			result = len != 0 && len < *_inOutSize;
+			if (len < *_inOutSize)
+			{
+				strcpy(_out, ptr);
+			}
 		}
 
 		*_inOutSize = len;
@@ -324,11 +326,14 @@ namespace bx
 			NULL
 		};
 
-		for (const char** tmp = s_tmp; tmp != NULL; ++tmp)
+		for (const char** tmp = s_tmp; *tmp != NULL; ++tmp)
 		{
 			uint32_t len = *_inOutSize;
+			*_out = '\0';
 			bool result = getenv(*tmp, _out, &len);
-			if (len != 0
+
+			if (result
+			&&  len != 0
 			&&  len < *_inOutSize)
 			{
 				*_inOutSize = len;

tests/misc_test.cpp

@@ -6,7 +6,7 @@ TEST(getProcessMemoryUsed)
 	CHECK(0 != bx::getProcessMemoryUsed() );
 //	DBG("bx::getProcessMemoryUsed %d", bx::getProcessMemoryUsed() );
 
-	char tmpDir[PATH_MAX];
+	char tmpDir[512];
 	uint32_t len = BX_COUNTOF(tmpDir);
 	CHECK(bx::getTempPath(tmpDir, &len) );
 }