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Compiler Design · Lexical Analysis
Official IIT answer key · IIT Roorkee · Audited Aug 2026
GATE CSE 2026 Set 1 Q27 · MSQ · 1 mark
char *str1 = "Hello; /* Statement S1 */
char *str2 = "Hello;"; /* Statement S2 */
int *str3 = "Hello"; /* Statement S3 */
Which of the following options is/are correct?Key concept
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Topic notes
Lexical Analysis in GATE CS is consistently tested as a 1-mark foundational topic covering tokenization mechanics, formal automaton models, error classification, and compiler data structure lifecycle. Recent years have shifted from purely definitional phase-matching questions toward practical token segmentation using the maximal munch rule and formal construction of NFA/DFA models from regular expressions.
Full Lexical Analysis guide →Consider the following C statements: char *str1 = "Hello; /* Statement S1 */ char *str2 = "Hello;"; /* Statement S2 */ int *str3 = "Hello"; /* Statement S3 */ Which of the following options is/are correct?
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