How to declare a variable length array in Visual Studio C89 following other code [duplicate]

Answer 1

You cannot. VLA is supported in C99 and later standards. (Support is mandatory in C99; it is optional in C11.) C89 does not have the VLA concept or support for it.

You can choose dynamic memory allocation, instead. have a look at malloc() and family for your reference.

Remember, if you want to use dynamic memory (allocation), you have to free() the allocated memory once you're done using it.

Answer 2

MSVC doesn't support VLAs. Recent versions of MSVC do support declarations mixed with statements in C compiles (I think this started with VS 2013).