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Error Redefinition Of Typedef

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Error Redefinition Of ‘class

million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Redefinition errors in .h files up vote 6 down vote favorite //list.h file typedef struct _lnode{ struct _lnode *next; size_t row; size_t column; short data; }lnode; typedef struct _llist{ struct _lnode *head; size_t size; }llist; //matrix.h file error redefinition of ‘struct typedef struct _matrix{ size_t width; size_t height; size_t k; int **data; }matrix; //smatrix.h file #include "list.h" #include "matrix.h" typedef struct _smatrix{ size_t width; size_t height; size_t k; llist data; }smatrix; smatrix* make_smatrix(matrix *m); smatrix.h file includes list.h file and matrix.h files. If I include those header files in smatrix.h file then I get redefinition of 'lnode'. redefinition of '_llist' and redefinition of '_matrix' errors. If I took those heder files our from smatrix.h file then the error went away but it complains about matrix type in the function parameter. I want to call functions defined in list.h and matrix.h files in smatrix.c file.. What do I do? Thanks in advance.. c share|improve this question edited Apr 29 '15 at 17:48 BartoszKP 22.2k84067 asked Mar 25 '11 at 8:18 LCYSoft 3,2791160116 add a comment| 4 Answers 4 active oldest votes up vote 12 down vote accepted Possible problem of multiple inclusions. Try to guard your header files with file list.h #ifndef _LISTH_ #def

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Error Redefinition Of 'struct Iovec'

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Error Redefinition Of Default Argument

Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: error redefinition of typedef 'glistmodel' Sign up Redefinition of main up vote 4 down vote favorite I started writing code in C, and I needed the toupper function in my code, so I added to ctype.h header file to include it. All of a sudden I http://stackoverflow.com/questions/5430019/redefinition-errors-in-h-files can't run my program because I keep getting a redefinition of main error from my compiler. Before I added the header ctype.h, and even if I get rid of the header file ctype.h, the program runs. What do I do to fix this? #include #include #define NAMESPACE 20 int main (void) { char first_name[NAMESPACE], middle_name[NAMESPACE], last_name[NAMESPACE]; printf ("Please enter your first, middle and last name.\n"); scanf ("%s", first_name); scanf("%s", middle_name); scanf ("%s", last_name); printf ("%s %0.1s %s", first_name, middle_name, last_name); return http://stackoverflow.com/questions/30671479/redefinition-of-main 0; } [error] redefinition of "int main()": Here is the code saved as a header file called ctype.h in my DEV c++ , #include #include int main (void) { char ch[]="I AM AN IDIOT."; char c='A'; int i=0; while(c) { c=getch(); printf("%c\a",ch[i]); i++; if(i==14) { printf(" "); i=0; } } } c main share|improve this question edited Jun 5 '15 at 21:00 asked Jun 5 '15 at 16:31 nicholas cupello 265 2 The code looks OK to me. What's your platform? –R Sahu Jun 5 '15 at 16:39 1 can you post a screenshot of your project in dev+c++? –pfannkuchen_gesicht Jun 5 '15 at 18:00 1 Is that the entire error message? Does it refer to a line number? To a file? –Keith Thompson Jun 5 '15 at 18:02 1 Any chance you are accidently linkin in 2 different projects that you created? –Michael Dorgan Jun 5 '15 at 18:22 1 NAMESPACE as a constant also scares me, though it should be fine. –Michael Dorgan Jun 5 '15 at 18:22 | show 5 more comments 1 Answer 1 active oldest votes up vote 4 down vote The code you posted does not explain the error message you presented. It has some issues, but none that should elicit any error. There are several possible reasons for the error, among them: My best guess would be that you have another source file in the project that has its own main() function, and the ID

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