Hi, i'm trying to use a struct field on a function (by reference). i will show a example:
Struct declaration:
function:Code:typedef struct{ char teste1[3+1]; char teste2[4+1]; }struct2;
calling:Code:void TrataStruct(char* parametro) { printf("%s",parametro); }
error:Code:TrataStruct(&structTeste.teste1);
error C2664: 'TrataStruct' : cannot convert parameter 1 from 'char (*)[4]' to 'char'.
How i make it works?
thx.
Should call with no '&'
structTeste.teste1 itself 'points to the base address of the your char array.Code:TrataStruct(structTeste.teste1);
ssharish
Life is like riding a bicycle. To keep your balance you must keep moving - Einstein
Assuming that structTeste is a valid struct object you just do TrataStruct(structTeste.teste1);
1. Get rid of gets(). Never ever ever use it again. Replace it with fgets() and use that instead.
2. Get rid of void main and replace it with int main(void) and return 0 at the end of the function.
3. Get rid of conio.h and other antiquated DOS crap headers.
4. Don't cast the return value of malloc, even if you always always always make sure that stdlib.h is included.
1 - i Tried to use wthout '&' but it results in the same error
2 - This is a example, on the real case the struct will not be visible to other function
i dont know what to do, i tried to use (char parametro[3+1]) too,but it still wrong =/
Post your code so we can see exactly what you are doing.
1. Get rid of gets(). Never ever ever use it again. Replace it with fgets() and use that instead.
2. Get rid of void main and replace it with int main(void) and return 0 at the end of the function.
3. Get rid of conio.h and other antiquated DOS crap headers.
4. Don't cast the return value of malloc, even if you always always always make sure that stdlib.h is included.
Code:#include "stdafx.h" void TrataStruct(char parametro[3+1]); int _tmain(int argc, _TCHAR* argv[]) { typedef struct{ char teste1[3+1]; char teste2[4+1]; }struct2; struct2 structTeste; printf("%s","Test Value \n"); scanf("%s",&structTeste.teste1); TrataStruct(&structTeste.teste1); return (0); } void TrataStruct(char parametro[3+1]) { printf("%s",parametro); }
THIS: scanf("%s",&structTeste.teste1)
Should be scanf("%s",structTeste.teste1) without the &. structTeste.teste1 is already a pointer to that string.
TrataStruct should be called liked indicated above without the &.
1. Get rid of gets(). Never ever ever use it again. Replace it with fgets() and use that instead.
2. Get rid of void main and replace it with int main(void) and return 0 at the end of the function.
3. Get rid of conio.h and other antiquated DOS crap headers.
4. Don't cast the return value of malloc, even if you always always always make sure that stdlib.h is included.
