Swift trace

trace will log its parameters. By default these will appear on both stdout and in the run log file. Some formatting occurs to produce the log message. The particular output format should not be relied upon.

tracef

tracef(spec, variable list) will log its parameters as formatted by the formatter spec. spec must be a string. Checks the type of the specifiers arguments against the variable list and allows for certain escape characters.

Example:

int i = 3;
tracef("%s: %i\n", "the value is", i);

Specifiers:

%s
Format a string.
%b
Format a boolean.
%i
Format a number as an integer.
%f
Format a number as a floating point number.
%q
Format an array.
%M
Format a mapped variable’s filename.
%k
Wait for the given variable but do not format it.
%p
Format variable according to an internal format.

Escape sequences:

\n
Produce a newline.
\t
Produce a tab.

Known issues:

Swift does not correctly scan certain backslash sequences such as \\.

java

java(class_name, static_method, method_arg) will call a java static method of the class class_name.

Conclusion

In this page (written and validated by A. Gawali) you learned about Swift trace . What's Next? If you are interested in completing Swift tutorial, your next topic will be learning about: Swift writeData.

Incorrect info or code snippet? We take very seriously the accuracy of the information provided on our website. We also make sure to test all snippets and examples provided for each section. If you find any incorrect information, please send us an email about the issue: mockstacks@gmail.com.

Share On:

Mockstacks was launched to help beginners learn programming languages; the site is optimized with no Ads as, Ads might slow down the performance. We also don't track any personal information; we also don't collect any kind of data unless the user provided us a corrected information. Almost all examples have been tested. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. By using Mockstacks.com, you agree to have read and accepted our terms of use, cookies and privacy policy.