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Array: Difference between revisions
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All values between (and including) the lower and the upper bound of the array may legally be accessed during the program run.
==Examples==
===C===
We wish to open a text file and compute letter frequency
FILE *any_text;
/* declare array */
int frequency[26];
/* declare a computed index */
int ch;
any_text = fopen ("a_text_file.txt", "rt");
/* init the freq table: */
for (ch = 0; ch < 26; ch++)
frequency[ch] = 0;
ch = fgetc(any_text);
while (!feof(any_text))
if (is_a_letter(ch))
/* if a letter increase character slot in the freq table: */
frequency[ch-'A'] += 1;
==Computational metrics==
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