strcpy(union,string)

[Richard Slater]

Hello people

I am tring to copy a string to a union member using the following format:

strcpy(Command_Result.String_Value,Disp_Msg);

where

pre
union Command_Result_Value{
int U_Int_Value;
int Error_Value;
signed int S_Int_Value;
long U_Long_Value;
signed long S_Long_Value;
char String_Value[9];
}Command_Result;


char Disp_Msg[Disp_Size+1];

When I do printf("\%s\n\r",Command_Result.String_Value) it prints a nothing for the \%s and then the \n\r, so all you see is a blank line.

If I do :
strcpy(Command_Result.String_Value,"Hello World");
it prints "Hello World" as expected.

Is it not possible to copy a string variable to a union member?

Thanks in advance

Richard

ps. I have used 'pre' and '/pre' to try and keep the indentation in the code, if this has not worked could some kind soul please tell me how to do it?!
/pre
___________________________
This message was ported from CCS's old forum
Original Post ID: 12166

[PCM programmer]

:=Hello people
:=
:=I am tring to copy a string to a union member using the following format:
:=
:=strcpy(Command_Result.String_Value,Disp_Msg);

Try including the "string.h" file, which is in the
c:\Program Files\Picc\Drivers folder, and use the
"strcopy" function instead. Note that it's spelled
differently than "strcpy".


:=
:=where
:=
:=pre
:=union Command_Result_Value{
:= int U_Int_Value;
:= int Error_Value;
:= signed int S_Int_Value;
:= long U_Long_Value;
:= signed long S_Long_Value;
:= char String_Value[9];
:=}Command_Result;
:=
:=
:=char Disp_Msg[Disp_Size+1];
:=
:=When I do printf("\%s\n\r",Command_Result.String_Value) it prints a nothing for the \%s and then the \n\r, so all you see is a blank line.
:=
:=If I do :
:=strcpy(Command_Result.String_Value,"Hello World");
:=it prints "Hello World" as expected.
:=
:=Is it not possible to copy a string variable to a union member?
:=
:=Thanks in advance
:=
:=Richard
:=
:=ps. I have used 'pre' and '/pre' to try and keep the indentation in the code, if this has not worked could some kind soul please tell me how to do it?!
:=/pre

That's because you have surround html tags with angle-brackets.
See the following two links for an example.
<a href="http://www.createafreewebsite.net/html_tutorial/pre_tag.html" TARGET="_blank">http://www.createafreewebsite.net/html_tutorial/pre_tag.html</a>
<a href="http://www.w3schools.com/tags/tryit.asp?filename=tryhtml_pre" TARGET="_blank">http://www.w3schools.com/tags/tryit.asp?filename=tryhtml_pre</a>
___________________________
This message was ported from CCS's old forum
Original Post ID: 12168

[sar]

Hello Richard
Did you ever write any code for those HDSP 2xxx displays. If so do you have examples? I'm trying to interface and write to DS1307 RTC. SAR
___________________________
This message was ported from CCS's old forum
Original Post ID: 12181