Consider yourself threated
"In normal debugged programs, there are usually no math subroutine errors--and therefore no assignments to 'errno' and no 'matherr' calls; in that situation the math functions behave reentrantly."
-C math library documentation
"If you pass streams by value, the C++ compiler will not complain. However, mysterious bad things will start happening, often in parts of the code which don't appear to be related to the offending function."
-How to use streams in C++
Sorry, I already gave what help I could...
Maybe you should try asking a human?
An error might have occurred before I noticed any problems.
``If all else fails, read the instructions.''
-latex help message
(That makes 100 errors; please try again.)
-latex error message