text: // Copyright 2020-present the Material Components for iOS authors. All Rights
  // Reserved.
  //
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //
  // http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  
  #ifndef MDC_AVAILABILITY
  #define MDC_AVAILABILITY
  
  #include <Availability.h>
  
  /*
    A header to be used in conjunction with Availability.h to conditionally
    compile OS sensitive code.
  
    MDC_AVAILABLE_SDK_IOS(_ios) evaluates to true when the maximum target SDK is
    greater than equal to the given value. This will only prevent code from
    compiling when built with a maximum SDK version lower than the version
    specified. A runtime check may still be necessary. Example:
  
    #if MDC_AVAILABLE_SDK_IOS(13_0)
      // iOS 13 specific code.
    #endif
   */
  
  #define MDC_AVAILABLE_SDK_IOS(_ios) \
    ((__IPHONE_##_ios != 0) &&        \
     (__IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_##_ios))
  
  #endif  // MDC_AVAILABILITY
  