array_macros.hh File Reference

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Macros
#define	dimensionof(x)   sizeof(static_array_size_fn(x).c)
#define	ARRAYEND(x)   (x + dimensionof(x))
#define	ARRAYBEGIN(x)   x

Functions
template<typename T , int N>
array_size_struct< N >	static_array_size_fn (T(&)[N])

Detailed Description

This file provides a set of types, macros, and functions to derive the length of an array whose name is in scope. Templates are so cool. :-)

Most of the code is from "Imperfect C++" by Matthew Wilson

Kevin Lynch 2009

Copied to artg4tk Brendan Kiburg 2013

Definition in file array_macros.hh.

Macro Definition Documentation

#define ARRAYBEGIN

(

x

)

x

Returns the "begin iterator" (pointer) given by the in-scope array name x.

Definition at line 50 of file array_macros.hh.

#define ARRAYEND

(

x

)

(x + dimensionof(x))

Returns the "end iterator" (pointer) given an in-scope array name x.

Definition at line 42 of file array_macros.hh.

#define dimensionof

(

x

)

sizeof(static_array_size_fn(x).c)

This macro should only be applied when x is the name of an array which is in scope, or all hell will break loose, with many pages of template instantiation errors pouring forth from the compiler.

Definition at line 37 of file array_macros.hh.

Function Documentation

template<typename T , int N>

array_size_struct<N> static_array_size_fn

(

T(&)

[N]

)

This function declaration has no associated implementation; it exists solely for compile time argument type deduction. Don't even think about using it.