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Macros
Macros
Macros
Macro 
Description 
Use this function to generate log that serve as debugging information. 
Generates a log with error level severity. This indicates that an error has occurred, with the result that one of the program's functions fails to work, although the program itself will not terminate because of it. For example, on an English learning program the human voice pronunciation feature fails to produce any sound. However, all other functions in the application operate normally. 
Generates a log with fatal level of severity. This is the most serious error, the result of which is the direct termination of the program. For example, the application fails to allocate memory upon program start-up. This will result in the system being unable to generate the user interface screen and having to terminate the application. 
Generate logs for informational purposes, e.g. when execution of app enters into a function, a log is written to indicate execution entered in that particular function. 
Generates a log with warning level of severity. Use this function for logs with warning purposes. The cause of the warning is within the expectation of the program and the situation may restore to normal eventually. For example, the program may fail to connect to the Internet, the reason for which may be delinquent phone bills, or bad signal coverage. After recharging the account or moving the phone to a location with a stronger signal, the problem will no longer exist. 
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