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1 You can also use %zd (NSInteger) and %tu (NSUInteger) when logging to the console.2 3 NSInteger integer = 1;4 NSLog(@"first number: %zd", integer);5... 阅读全文
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You can implement your own functions in SQLite. For example, write a SQLite C function wrapper foracos:void sqlite_acos(sqlite3_context *context, int ... 阅读全文
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Distance function for sqlitePosted onOctober 25, 2008byDaveAs part of an iPhone SDK project, I have an sqlite database with a table full of geographic... 阅读全文