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PCD
Purpose: All global symbols created from the #MODULE to the end of the file will only be
visible within that same block of code (and files #INCLUDE within that block). This
may be used to limit the scope of global variables and functions within include files.
This directive also applies to pre-processor #defines.
Note: The extern and static data qualifiers can also be used to denote scope of
variables and functions as in the standard C methodology. #MODULE does add
some benefits in that pre-processor #DEFINE can be given scope, which cannot
normally be done in standard C methodology.
Examples: int GetCount(void);
void SetCount(int newCount);
#MODULE
int g_count;
#define G_COUNT_MAX
100
int GetCount(void) {return(g_count);}
void SetCount(int newCount) {
if (newCount>G_COUNT_MAX)
newCount=G_COUNT_MAX;
g_count=newCount;
}
/*
the functions GetCount() and SetCount() have global scope, but the
variable g_count and the #define G_COUNT_MAX only has scope to this
file.
*/
Example
None
Files:
See Also: #EXPORT, Invoking the Command Line Compiler, Multiple Compilation Unit
#NOLIST
Syntax:
Elements:
Purpose:
Examples:
Example
Files:
Also See:
106
#NOLIST
None
Stops inserting source lines into the .LST file (until a #LIST)
#NOLIST // Don't clutter up the list file
#include <cdriver.h>
#LIST
16c74.h
#LIST
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相关代理商/技术参数
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