Re: Structures or Array Notation for many possible strings of finite length?

On Sat, 28 Oct 2006 18:34:21 -0400, nospam <nospam@xxxxxxxxxx> wrote:

I have an application that processes 30 kinds of strings of that fit
in an array.

By processing, I mean
-check the value of certain characters or substrings to be
within contant bounds or a member of a list
-check the value of certain characters or substrings to be
within bounds defined by other characters or substrings
-call a series of functions based on value of certain
substrings.

Each kind of string has a different length, but it fits within an
array of 128 char's


Would you do the processing with array notation (using #defines for
the array indices) in order to write the clearest code , or would you
setup a union of 30 structs (one struct for each kind of sentence) to
write clearest code?

Which do you find easier to code and read later?

union{
struct {char c1[L1]}s1;
...
struct {char c30[L30]}s30;
}u
...
if (u.s19.c19[5] == 'x'){...}

or

#define POS19 5
char c[128];
...
if (c[POS19] == 'x'){...}


Remove del for email
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