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AnswerRe: Difference between Typedef and #define? Pin
QuickDeveloper9-Feb-06 18:51
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AnswerRe: Difference between Typedef and #define? Pin
Rage9-Feb-06 21:20
professionalRage9-Feb-06 21:20 
GeneralRe: Difference between Typedef and #define? Pin
BadKarma9-Feb-06 22:07
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GeneralRe: Difference between Typedef and #define? Pin
Rage10-Feb-06 1:25
professionalRage10-Feb-06 1:25 
GeneralRe: Difference between Typedef and #define? Pin
BadKarma10-Feb-06 2:15
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GeneralRe: Difference between Typedef and #define? Pin
Rage10-Feb-06 2:55
professionalRage10-Feb-06 2:55 
GeneralRe: Difference between Typedef and #define? Pin
Ryan Binns10-Feb-06 11:58
MemberRyan Binns10-Feb-06 11:58 
GeneralRe: Difference between Typedef and #define? Pin
normanS12-Feb-06 20:14
MembernormanS12-Feb-06 20:14 
Rage wrote:
#define a 3


What is a ? an unsigned int ? a signed int ? a char ? ...


My guess to the answer - the type of "a" is not determined in the #define statement - it depends on where "a" is used in the program. As far as I know, "a" is replaced by "3" by the pre-compiler before compilation, so it may be treated as a char in one part of the program and as an int in another, etc.

So if you had the following code:

#define defValue3 3

char cOneChar;
int iIntVar;

cOneChar = defValue3 + 32;
  // defValue3 replaced by 3 - treated as char so no typecast warning
iIntVar = defValue3 + 32;
  // defValue3 replaced by 3 - treated as int so no typecast warning

AnswerRe: Difference between Typedef and #define? Pin
Ryan Binns9-Feb-06 21:41
MemberRyan Binns9-Feb-06 21:41 
GeneralRe: Difference between Typedef and #define? Pin
jhwurmbach10-Feb-06 3:09
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GeneralRe: Difference between Typedef and #define? Pin
Blake Miller10-Feb-06 4:13
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GeneralRe: Difference between Typedef and #define? Pin
jhwurmbach10-Feb-06 4:23
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GeneralRe: Difference between Typedef and #define? Pin
Blake Miller10-Feb-06 4:28
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GeneralRe: Difference between Typedef and #define? Pin
jhwurmbach10-Feb-06 4:34
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GeneralRe: Difference between Typedef and #define? Pin
Blake Miller10-Feb-06 4:41
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GeneralRe: Difference between Typedef and #define? Pin
BadKarma10-Feb-06 4:38
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GeneralRe: Difference between Typedef and #define? Pin
Blake Miller10-Feb-06 4:46
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GeneralRe: Difference between Typedef and #define? Pin
Ryan Binns10-Feb-06 11:53
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QuestionMy string class Pin
Sarvan AL9-Feb-06 17:56
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AnswerRe: My string class Pin
Bernhard9-Feb-06 19:57
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AnswerRe: My string class Pin
Owner drawn9-Feb-06 21:22
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AnswerRe: My string class Pin
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