C style. C

The following code, for instance, is very nonportable	What is the greatest fear of C DISC Styles? Other complex expressions, particularly those using the ternary? A function that writes on to variable-sized storage should take an argument maxsize that is the size of the destination
If it's given an array index, assert that it's within bounds	My aunt and I finally made it to the second floor of Nordstrom, and I immediately saw!!!! In general, global names including enums should have a common prefix identifying the module that they belong with

Avoid unified headers Unified headers are generally bad, because they relieve the library developer of the responsibility to provide loosely-coupled modules clearly separated by their purpose and abstraction.

emailvalidation.com: Sometimes an if causes an unconditional control transfer via break, continue, goto, or return
C# at Google Style Guide: You could write a program that avoids all constructs that are known broken on all compilers
emailvalidation.com: Also, case values have to be an integral constant expression, so they can't match against another variable

When a non-prototyped version is needed, it is generated using an automatic conversion tool	Use assert everywhere your program would fail otherwise Write assertions to meaningfully crash your program before it does something stupid, like deleting data, or to prevent a security vulnerability, or just to prevent a segmentation fault
Arrays Use the concise syntax when you initialize arrays on the declaration line	The following code will clear only the three rightmost bits of an int on some 68000s

This "outside" pointer may not be dereferenced.

C: Before then, prioritize everything else over any supposed performance improvements
Recommended C Style and Coding Standards: It is a rich subset of C
GitHub: My university faculty is on software correctness