Valid, but worthless syntax in switch-case?

Valid, but worthless syntax in switch-case?

c switch-statement language-lawyer

c

How do I make an infinite empty loop that won't be optimized away?

c clang language-lawyer compiler-optimization

c

How many levels of pointers can we have?

c++ c pointers language-lawyer limit

c

Is using if (0) to skip a case in a switch supposed to work?

c++ c if-statement switch-statement language-lawyer

c

How does this piece of code determine array size without using sizeof( )?

c arrays size language-lawyer pointer-arithmetic

c

Does "Undefined Behavior" really permit anything to happen? [duplicate]

c++ c language-lawyer undefined-behavior

c

Why do C and C++ allow the expression (int) + 4*5?

c++ c casting language-lawyer

c

Is it guaranteed to be safe to perform memcpy(0,0,0)?

c memcpy language-lawyer null-pointer

c

Printing null pointers with %p is undefined behavior?

c language-lawyer c99 undefined-behavior c11

c

What are the valid signatures for C's main() function?

c language-lawyer signature entry-point function-prototypes

c

What are the common undefined/unspecified behavior for C that you run into? [closed]

c language-lawyer undefined-behavior unspecified-behavior

c

Can code that will never be executed invoke undefined behavior?

c language-lawyer

c

Can argc be zero on a POSIX system?

c posix language-lawyer main

c

Does C or C++ guarantee array < array + SIZE?

c++ c language-lawyer

c

Is masking before unsigned left shift in C/C++ too paranoid?

c++ c language-lawyer undefined-behavior integer-arithmetic

c