Answered: You are creating a programme for…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

You are creating a programme for several platforms, which is the issue. As a result, the code is dotted with several #ifdef lines. In fact, there are so many that the code is difficult to comprehend and the design is unsightly.
For instance:
void send_cmd(void)
{
send_cmd_start();
#ifdef FE_TEXTURE
send_texture();
#endif /* FE_TEXTURE */
#ifdef FE_COLOR
send_background();
if (foreground != TRANSPARENT)
send_foreground();
#endif /* FE_COLOR */
#ifdef FE_SIZE
if (size != 0)
send_size();
#endif /* FE_SIZE */
#ifdef FE_REPLAY
if (prev_cmd == '\0') {
prev_cmd = cur_cmd;
prev_param = cur_param;
}
#endif /* FE_REPLAY */
send_cmd_end();
}

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