I saw some C while loop with predicate as while(*ptr), and ptr is usually of char * type, how does this work? Does this mean “while()” will also accept values other than 1 or 0 as predicates?
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I saw some C while loop with predicate as while(*ptr), and ptr is usually of char * type, how does this work? Does this mean “while()” will also accept values other than 1 or 0 as predicates?
In C, any non-zero value is considered “true”, so
while (*ptr)will loop as long as*ptris non-zero.