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From: | jvasquez AT getntds DOT spam DOT com (John Vasquez) |
Newsgroups: | comp.os.msdos.djgpp |
Subject: | pointer to functions - Warning error |
Date: | Mon, 18 Dec 2000 18:55:56 GMT |
Organization: | CTSnet Internet Services |
Lines: | 40 |
Message-ID: | <3a3e5883.8164479@news.connectnet.com> |
X-Trace: | thoth.cts.com 977165751 34789 207.110.36.153 (18 Dec 2000 18:55:51 GMT) |
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To: | djgpp AT delorie DOT com |
DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
Reply-To: | djgpp AT delorie DOT com |
I have the latest DJGPP compiler. I use a lot of pointer to functions - If I define it this way I get no compiler warning (assignment from incompatible pointer type) int Myfunct(void); typedef struct _MyStruct{ int (*funct)(void); }MyStruct; in the code I do this: MyStruct DefineStruct; //define the structure DefineStruct.funct = MyFunct; //set the pointer to function DefineStruct.funct(); //call the function } When I have a function that I pass parameters: like this int Myfunct(int x, void *adr); typedef struct _MyStruct{ int (*funct)(int x, void *adr); }MyStruct; in the code I do this: int x; void *adr; MyStruct DefineStruct; //define the structure DefineStruct.funct = MyFunct; //set the pointer to function <--- Generates a compiler warning message DefineStruct.funct(x, addr); //call the function } I get the following compiler warning error at DefineStruct.funct = MyFunct; Why? The code I am using was ported over from MS C compiler version 6.0. and I am modifying the code for 32 bit operations. The MS C compiler never generated a warning error and the program works perfectly in DOS. Thank you John
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