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The Issue: You're creating a programme that will run on many platforms. As a result, there are several #ifdef statements scattered throughout the code. There are so many that the code is difficult to understand and things seem unsightly. As an example: 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(); }

The Issue: You're creating a programme that will run on many platforms. As a result, there are several #ifdef statements scattered throughout the code. There are so many that the code is difficult to understand and things seem unsightly. As an example: 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(); }

Database System Concepts
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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The Issue: You're creating a programme that will run on many platforms. As a result, there are several #ifdef statements scattered throughout the code. There are so many that the code is difficult to understand and things seem unsightly.
As an example:

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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