Similar macros like "CONST_INT" in product code. Does it deserve this?
Thank you for your time.
/* a.h ************************************************** *********/
#ifndef CONST_INT
#define CONST_INT(name, value) extern const int name
#endif
#ifndef CONST_DBL
#define CONST_DBL(name, value) extern const double name
#endif
#ifndef CONST_STR
#define CONST_STR(name, value) extern const char *name
#endif
/*more defs...*/
CONST_INT(age, 18);
CONST_DBL(len, 19.9);
CONST_STR(usenet, "clc");
/*more consts...*/
/* a.c ************************************************** *********/
#include <stdio.h>
#include "a.h"
CONST_INT(age, 18) = 18;
CONST_DBL(len, 19.9) = 19.9;
CONST_STR(usenet, "clc") = "clc";
/*more consts...*/
int a(void){
printf("%d, %f, %s\n", age, len, usenet);
/*more stuff*/
return 0;
}
2  1449 
lovecreatesbea...@gmail.com wrote:
Similar macros like "CONST_INT" in product code. Does it deserve this?
Thank you for your time.
/* a.h ************************************************** *********/
#ifndef CONST_INT
#define CONST_INT(name, value) extern const int name
#endif
#ifndef CONST_DBL
#define CONST_DBL(name, value) extern const double name
#endif
#ifndef CONST_STR
#define CONST_STR(name, value) extern const char *name
#endif
/*more defs...*/
CONST_INT(age, 18);
CONST_DBL(len, 19.9);
CONST_STR(usenet, "clc");
/*more consts...*/
/* a.c ************************************************** *********/
#include <stdio.h>
#include "a.h"
CONST_INT(age, 18) = 18;
CONST_DBL(len, 19.9) = 19.9;
CONST_STR(usenet, "clc") = "clc";
/*more consts...*/
int a(void){
printf("%d, %f, %s\n", age, len, usenet);
/*more stuff*/
return 0;
}
Looks silly: Why specify each value twice? I suspect
you've overlooked a set of alternative definitions of the
macros, that look something like
CONST_INT(name value) const int name = (value)
.... the idea being to put `CONST_INT(age, 18);' in a lot
of files (probably by way of #include), where most use
the first CONST_INT definition and exactly one uses the
second.
-- Er*********@sun.com
On Feb 28, 11:35 pm, Eric Sosman <Eric.Sos...@sun.comwrote:
lovecreatesbea...@gmail.com wrote:
Similar macros like "CONST_INT" in product code. Does it deserve this?
Thank you for your time.
/* a.h ************************************************** *********/
#ifndef CONST_INT
#define CONST_INT(name, value) extern const int name
#endif
#ifndef CONST_DBL
#define CONST_DBL(name, value) extern const double name
#endif
#ifndef CONST_STR
#define CONST_STR(name, value) extern const char *name
#endif
/*more defs...*/
CONST_INT(age, 18);
CONST_DBL(len, 19.9);
CONST_STR(usenet, "clc");
/*more consts...*/
/* a.c ************************************************** *********/
#include <stdio.h>
#include "a.h"
CONST_INT(age, 18) = 18;
CONST_DBL(len, 19.9) = 19.9;
CONST_STR(usenet, "clc") = "clc";
/*more consts...*/
int a(void){
printf("%d, %f, %s\n", age, len, usenet);
/*more stuff*/
return 0;
}
Looks silly: Why specify each value twice? I suspect
you've overlooked a set of alternative definitions of the
macros, that look something like
CONST_INT(name value) const int name = (value)
I've paied special attention on this. They just don't have the "value"
arg in the macro bodies. I guess the literal values in the
declarations in the header are just like comments. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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