“没有以前的功能原型”警告 [英] "No previous prototype for function" warning

问题描述

我使用shareKit给自己编程。

但是在FBConnectGlobal中，有一些警告，

  NSMutableArray * FBCreateNonRetainingArray（）{
 CFArrayCallBacks callbacks = kCFTypeArrayCallBacks; 
 callbacks.retain = RetainNoOp; 
 callbacks.release = ReleaseNoOp; 
 return（NSMutableArray *）CFArrayCreateMutable（nil，0，& callbacks）; 
} 
  

就像这种方法一样，它警告：之前没有函数FBCreateNonRetainingArray的原型

解决方案

为了澄清Eric Dchao上面的回答，facebook上有人显然没有在BOOL面前放置静态？ / p>

无论如何，改变这个

  BOOL FBIsDeviceIPad（）{
 #if __IPHONE_OS_VERSION_MAX_ALLOWED> = 30200 
 if（UI_USER_INTERFACE_IDIOM（）== UIUserInterfaceIdiomPad）{
返回YES; 
} 
 #endif 
返回NO; 
} 
  

到此

  static BOOL FBIsDeviceIPad（）{
 #if __IPHONE_OS_VERSION_MAX_ALLOWED> = 30200 
 if（UI_USER_INTERFACE_IDIOM（）== UIUserInterfaceIdiomPad）{
返回YES; 
} 
 #endif 
返回NO; 
} 
  

为我修好了。

i use shareKit to myself program .

but in the FBConnectGlobal, there are some warning,

NSMutableArray* FBCreateNonRetainingArray() {
  CFArrayCallBacks callbacks = kCFTypeArrayCallBacks;
  callbacks.retain = RetainNoOp;
  callbacks.release = ReleaseNoOp;
  return (NSMutableArray*)CFArrayCreateMutable(nil, 0, &callbacks);
}

like this method, it warning:"No previous prototype for function FBCreateNonRetainingArray"

解决方案

To clarify Eric Dchao's answer above, someone at facebook apparently didn't put a "static" in front of that BOOL?

Anyways, changing from this

BOOL FBIsDeviceIPad() {
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 30200
  if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
    return YES;
  }
#endif
  return NO;
}

to this

static BOOL FBIsDeviceIPad() {
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 30200
  if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
    return YES;
  }
#endif
  return NO;
}

fixed it for me.

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