c++ - 编译时出错 : control may reach end of non-void function

Question

我正在尝试在我的设备上使用 theos 创建我的第一个 mobilesubstrate tweak但是当我编译时我得到了这个错误

Tweak.xm:23:1: error: control may reach end of non-void function [-Werror,-Wreturn-type]

我的 Tweak.xm

#import <UIKit/UIKit.h>
#import <Foundation/Foundation.h>

static NSMutableDictionary *plist = [[NSMutableDictionary alloc] initWithContentsOfFile:@"/var/mobile/Library/Preferences/com.myplist.customwapprefs.plist"];

static BOOL pictureFit = NO;

static id connection = nil;

%hook WAPhotoMoveAndScaleViewController

- (BOOL)mustScaleToFill {


  pictureFit = [[plist objectForKey:@"photofit"]boolValue];  

  if (pictureFit) {
  return NO;
}
else if (!pictureFit) {
  return %orig;
}
}

%end

请具体说明我是 objective-c 的新手，谢谢

Answer 1

if (pictureFit) {
  return NO;
}
else if (!pictureFit) {
  return %orig;
}

您不需要 else 部分中的第二个条件。删除它，编译器应该会很高兴