Strings

What is returned from strlen("test\n");

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Given char buffer[81], which statement correctly reads a single line into buffer?

• gets(buffer);

• fgets(buffer, 81, stdin);

• scanf("%s", buffer);

• scanf("%80s", buffer);

Given char buffer[81], which statement correctly reads a single word into buffer?

• gets(buffer);

• fgets(buffer, 81, stdin);

• scanf("%s", buffer);

• scanf("%80s", buffer);

Which expression is true, if pointer test points to string with content "test"?

• test == "test"

• strcmp(test, "test") == 0

• strcmp(test, "test")

• strstr(test, "test") == 0

We have char str[81] = "test". How do we concatenate it with "string"?

• strcat(str, "string");

• strcpy(str, "string");

• str += "string";

• str = "teststring";

Let

char *test = "teststring";

char *ptr = strstr(test, "str");

What is the value of ptr - test?

• Undefined.

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