String representation: A string is encoded by an array of characters ended by the null character. Each character is indicated by some standard encoding. The most character occurs with ACSII code. Therefore, if the user execute the function “show_bytes” with arguments “12345”, then the user gets the result of 31 32 33 34 35 From the given question, the function definition for “show_bytes” is void show_bytes(byte_pointer start, size_t len) { int i; for (i = 0; i < len; i++) printf(" %.2x ", start[i]); printf(“\n”); } The above function is used for show the bytes in hexadecimal. The “byte_pointer” is a pointer to an object of type unsigned char. The data type of “size_t” represents the size of data. In the printing statement, “%.2x” represents that an integer should be showed in hexadecimal with at least 2 digits.

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Chapter 2.1, Problem 2.7PP

Program Plan Intro

String representation:

A string is encoded by an array of characters ended by the null character.

Each character is indicated by some standard encoding.

The most character occurs with ACSII code.

Therefore, if the user execute the function “show_bytes” with arguments “12345”, then the user gets the result of 31 32 33 34 35

From the given question, the function definition for “show_bytes” is

void show_bytes(byte_pointer start, size_t len) {

int i;

for (i = 0; i < len; i++)

printf(" %.2x ", start[i]);

printf(“\n”);

}

The above function is used for show the bytes in hexadecimal.

The “byte_pointer” is a pointer to an object of type unsigned char.

The data type of “size_t” represents the size of data.

In the printing statement, “%.2x” represents that an integer should be showed in hexadecimal with at least 2 digits.

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