104. Strings and Character Handling-i

Question.4

A developer parses UART commands using strcmp:

char cmd[16];
uart_read_line(cmd, sizeof(cmd));

if (strcmp(cmd, "READ")) {
   execute_read();
} else {
   printf("Unknown command");
}

When the user sends "READ", what happens?

Need Help? Refer to the Quick Guide below

execute_read() is called — the strings match
"Unknown command" is printed — strcmp returns 0 for a match, and 0 is false in C
Compilation error — strcmp cannot compare with a string literal
Depends on whether the UART adds a newline character

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