Cristian Baboi wrote:
Let me show you an example to prove it.
That's not C.
That's the C preprocessor, which is a textual substitution macro
language. Macros certainly aren't first class (you can't pass a macro to
a function, only its expansion).
C does support function pointers, which are something like first class
functions. The main things C lacks which people associate with true
first-class function is:
The ability to construct anonymous/local functions.
The ability to capture local variables and return a function with some
variables bound.
The ability to write type-safe functions with polymorphic arguments.
Jules
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