我只是在学习Cocoa(来自C#)而且我发现一个看似非常简单的错误的奇怪错误。 (charsSinceLastUpdate >= 36
)
#import "CSMainController.h"
@implementation CSMainController
//global vars
int *charsSinceLastUpdate = 0;
NSString *myString = @"Hello world";
//
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
...
}
//other functions
- (void)textDidChange:(NSNotification *)aNotification {
NSLog(@"charsSinceLastUpdate=%i",charsSinceLastUpdate);
if (charsSinceLastUpdate>=36) { // <- THIS line returns the error: Comparison between pointer and integer
charsSinceLastUpdate=0;
[statusText setStringValue:@"Will save now!"];
} else {
charsSinceLastUpdate++;
[statusText setStringValue:@"Not saving"];
}
}
//my functions
- (void)showNetworkErrorAlert:(BOOL)showContinueWithoutSavingOption {
...
}
//
@end
任何帮助将不胜感激,谢谢!
答案 0 :(得分:20)
在您的代码中,charsSinceLastUpdate
是一个指针,您需要定义而不 *
:
int charsSinceLastUpdate = 0;
当然,除非意味着将其定义为指针,否则您需要使用dereference operator来检索它指向的值,就像这样:
if(*charsSinceLastUpdate >= 36) {
//...
}