why doesn’t even a good compiler move the call to strlen() out of the conditional such that it is only called once? // assume i is an int and s is a character string for (i = 0; i < strlen(s); i++) if (s[i] >= 65 && s[i] <= 97) s[i] += 32;

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Knowing the call to strlen() within the loop conditional below is inefficient, why doesn’t even a good compiler move the call to strlen() out of the conditional such that it is only called once?

// assume i is an int and s is a character string

for (i = 0; i < strlen(s); i++)

if (s[i] >= 65 && s[i] <= 97)

s[i] += 32;

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