系统级编程作业_lab1.docVIP

C++ fundamentals and Type conversion Student ID _____1043111051________ Student Name 王金科____ ___ Start Time 2012年09月4日 星期二 16:20 Finish Time 2012年09月9日 星期日 23:55 1. Objectives: To write simple C++ programs covering: Understand how a character is stored in memory; Understand how an integer is stored in memory; Understand array and pointer; and Perform conversion from eight bits (character) to eight bytes to be displayed on screen. 2. Type and Format in memory – character, integer, short and float 2.1 This exercise is to determine the memory size of different type. lab1_1.cpp //Determine the memory size of declaration and variable type #include iostream.h #include stdio.h #include ctype.h #include conio.h #include string.h #include stdlib.h void main() { char c; char s[128]; short i; short n[64]; printf(%3d %3d\n, sizeof(c), sizeof(char)); printf(%3d %3d\n, sizeof(s), sizeof(char[128])); printf(%3d %3d\n, sizeof(i), sizeof(short)); printf(%3d %3d\n, sizeof(n), sizeof(short[64])); } The display is: Now execute the above program and fill in the following: Type Size in byte Size in bit Short 2 16 Char 1 8 Short[32] 64 512 Char[64] 64 512 2.2 Use the approach of the above, determine the memory size of integer, float, integer[128], float[16] (lab1_2.cpp) Write a program to verify your answer and fill in the following: [hint, use sizeof(…) ] Type Size in byte Size in bit Int 4 32 Float 4 32 Int[128] 512 4096 Float[16] 64 512 Write down your codes below: #includeiostream.h #includestdio.h #includectype.h #includeconio.h #includestring.h #includestdlib.h void main(){ int c; int s[128]; float I; float n[16]; printf(“%3d%3d\n”,sizeof(c),sizeof(int)); printf(“%3d%3d\n”,sizeof(s),sizeof(int[128])); printf(“%3d%3d\n”,sizeof(i),sizeof(float)); printf(“%3d%3d\n”,sizeof(n),sizeof(float[16])); } Write down your expression amongst the difference in size between character, integer, float, short, char[8], int[8], short[8], float[8] Characte