105. Strings and Character Handling-ii

Question.2

A UART command parser reads a line and compares it:

char cmd[16];
fgets(cmd, sizeof(cmd), uart_stream);

if (strcmp(cmd, "READ") == 0) {
   execute_read();
}

The user sends READ followed by Enter. The comparison always fails. Why?

Need Help? Refer to the Quick Guide below

fgets is not compatible with strcmp
fgets includes the trailing newline character — cmd contains "READ\n", which doesn't match "READ"
strcmp is case-sensitive and the UART sends lowercase
cmd is too small to hold "READ"

Restart quiz!