i have mistake

Question

1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\GUI\Graph.h(47): warning C4309: 'initializing' : truncation of constant value

wht is it ?

Answer 1

1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\GUI\Graph.h(47): warning C4309: 'initializing' : truncation of constant value

I have problem with it .

Answer 2

You can look up C4309 in the help:

http://msdn.microsoft.com/en-us/library/sz5z1byt.aspx

Answer 3

Thank You

what is it ?

larger type for the constant

Answer 4

Post the source code corresponding to the warning message. (It's odd that you have a folder called GUI, whereas I don't. What edition of Visual Studio 2010 are you using?)

Answer 5

 You may need to use a larger type for the constant.

When i put in property pages C:\Program Files %28x86%29\Microsoft Visual Studio 10.0\GUI;C:\Program Files %28x86%29\Microsoft Visual Studio 10.0\FLTK then i have access to path in this library ?

Answer 6

I note that this is a duplicate of http://social.msdn.microsoft.com/Forums/en/vclanguage/thread/0dcd387f-0c97-40db-a197-8e8724ec62bb

why did you multipost?

Answer 7

if You can , integrate it , please .

i used new thread because i finish last by new problem ,which is result from badly interpretation of make access path ? if You can , look on this maybe is it that problem ?

Answer 8

That warning means you're trying to assign a constant to a variable which is too small to hold that value, for example:

short i = 123456;  // shorts can't contain numbers above 32767

Answer 9

i use Express version .

Answer 10

can i change int main() to other variable ? do You think about int ?

Answer 11

can i change int main() to other variable ? do You think about int ?

No, the standard requires that int is returned by main. Why do you feel compelled to change it?

Note that this is a brand new question, unrelated to the original question you posted. Generally, you should post a new question in a new thread, and mark the old thread as answered if indeed you have found a solution. Moreover, you are discouraged from posting the same question in multiple forums. If you must, you should add a hyperlink so that readers can see if the question is answered in the other forum before wasting their time researching a question that no longer needs to be answered.

It's not clear to me whether your original question has been answered. If not, please post line 47 of your file Graph.h, as I asked you previously.

Answer 12

1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\GUI\Graph.h(45): warning C4305: 'initializing' : truncation from 'Graph_lib::Color::Transparency' to 'char'

1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\GUI\Graph.h(45): warning C4309: 'initializing' : truncation of constant value

1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\GUI\Graph.h(47): warning C4305: 'initializing' : truncation from 'Graph_lib::Color::Transparency' to 'char'

1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\GUI\Graph.h(47): warning C4309: 'initializing' : truncation of constant value

Color(Color_type cc) :c(Fl_Color(cc)), v(visible) { } (45)

Color(Color_type cc, Transparency vv) :c(Fl_Color(cc)), v(vv) { }

Color(intcc) :c(Fl_Color(cc)), v(visible) { } (47)

Color(Transparency vv) :c(Fl_Color()), v(vv) { }

Can You help me ?

Answer 13

1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\GUI\Graph.h(45): warning C4305: 'initializing' : truncation from 'Graph_lib::Color::Transparency' to 'char'

1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\GUI\Graph.h(45): warning C4309: 'initializing' : truncation of constant value

1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\GUI\Graph.h(47): warning C4305: 'initializing' : truncation from 'Graph_lib::Color::Transparency' to 'char'

1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\GUI\Graph.h(47): warning C4309: 'initializing' : truncation of constant value

Color(Color_type cc) :c(Fl_Color(cc)), v(visible) { } (45)

Color(Color_type cc, Transparency vv) :c(Fl_Color(cc)), v(vv) { }

Color(intcc) :c(Fl_Color(cc)), v(visible) { } (47)

Color(Transparency vv) :c(Fl_Color()), v(vv) { }

Can You help me ?

What is the definition of Fl_Color? What parameter is expected for the constructor? Similarly what type is visible and what type is v?

Answer 14

struct

Color {

   

enumColor_type {

        red=FL_RED,

        blue=FL_BLUE,

        green=FL_GREEN,

        yellow=FL_YELLOW,

        white=FL_WHITE,

        black=FL_BLACK,

        magenta=FL_MAGENTA,

        cyan=FL_CYAN,

        dark_red=FL_DARK_RED,

        dark_green=FL_DARK_GREEN,

        dark_yellow=FL_DARK_YELLOW,

        dark_blue=FL_DARK_BLUE,

        dark_magenta=FL_DARK_MAGENTA,

        dark_cyan=FL_DARK_CYAN

    };

v is char type .

v;

Answer 15

v is char type .

I suspect then the warning message arises from:

v(visible)

I'm guessing the variable visible is an int and you are attempting to assign it to a char variable, which causes trunctation.

Answer 16

what does trunctation means ?
what do i ought ?

Answer 17

Truncation means loss of bits. It is not possible to assign 32 bits to an 8 bit variable. 24 of the bits will be truncated (== lost).

You must understand the range that can be stored in each data type. Use a data type that is suitable for the data you need to store.

Answer 18

1>main.obj : error LNK2028: unresolved token (0A000408) "public: virtual __thiscall Fl_Window::~Fl_Window(void)" (??1Fl_Window@@$$FUAE@XZ) referenced in function "public: virtual __thiscall Graph_lib::Window::~Window(void)" (??1Window@Graph_lib@@$$FUAE@XZ)

1>main.obj : error LNK2028: unresolved token (0A000467) "public: __thiscall Simple_window::Simple_window(struct Point,int,int,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (??0Simple_window@@$$FQAE@UPoint@@HHABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) referenced in function "int __cdecl main(void)" (?main@@$$HYAHXZ)

1>main.obj : error LNK2028: unresolved token (0A000468) "public: bool __thiscall Simple_window::wait_for_button(void)" (?wait_for_button@Simple_window@@$$FQAE_NXZ) referenced in function "int __cdecl main(void)" (?main@@$$HYAHXZ)

1>main.obj : error LNK2028: unresolved token (0A000559) "public: void __thiscall Fl_Widget::show(void)" (?show@Fl_Widget@@$$FQAEXXZ) referenced in function "public: virtual void __thiscall Graph_lib::Widget::show(void)" (?show@Widget@Graph_lib@@$$FUAEXXZ)

1>main.obj : error LNK2028: unresolved token (0A00055A) "public: void __thiscall Fl_Widget::hide(void)" (?hide@Fl_Widget@@$$FQAEXXZ) referenced in function "public: virtual void __thiscall Graph_lib::Widget::hide(void)" (?hide@Widget@Graph_lib@@$$FUAEXXZ)

1>main.obj : error LNK2019: unresolved external symbol "public: virtual __thiscall Fl_Window::~Fl_Window(void)" (??1Fl_Window@@$$FUAE@XZ) referenced in function "public: virtual __thiscall Graph_lib::Window::~Window(void)" (??1Window@Graph_lib@@$$FUAE@XZ)

1>main.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall Graph_lib::Window::draw(void)" (?draw@Window@Graph_lib@@MAEXXZ)

1>main.obj : error LNK2001: unresolved external symbol "public: virtual int __thiscall Fl_Window::handle(int)" (?handle@Fl_Window@@UAEHH@Z)

1>main.obj : error LNK2001: unresolved external symbol "public: virtual void __thiscall Fl_Window::resize(int,int,int,int)" (?resize@Fl_Window@@UAEXHHHH@Z)

1>main.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall Fl_Window::flush(void)" (?flush@Fl_Window@@MAEXXZ)

1>main.obj : error LNK2001: unresolved external symbol "public: virtual void __thiscall Fl_Window::show(void)" (?show@Fl_Window@@UAEXXZ)

1>main.obj : error LNK2001: unresolved external symbol "public: virtual void __thiscall Fl_Window::hide(void)" (?hide@Fl_Window@@UAEXXZ)

1>main.obj : error LNK2019: unresolved external symbol "public: void __thiscall Fl_Widget::hide(void)" (?hide@Fl_Widget@@$$FQAEXXZ) referenced in function "public: virtual void __thiscall Graph_lib::Widget::hide(void)" (?hide@Widget@Graph_lib@@$$FUAEXXZ)

1>main.obj : error LNK2019: unresolved external symbol "public: void __thiscall Fl_Widget::show(void)" (?show@Fl_Widget@@$$FQAEXXZ) referenced in function "public: virtual void __thiscall Graph_lib::Widget::show(void)" (?show@Widget@Graph_lib@@$$FUAEXXZ)

1>main.obj : error LNK2019: unresolved external symbol "public: bool __thiscall Simple_window::wait_for_button(void)" (?wait_for_button@Simple_window@@$$FQAE_NXZ) referenced in function "int __cdecl main(void)" (?main@@$$HYAHXZ)

1>main.obj : error LNK2019: unresolved external symbol "public: __thiscall Simple_window::Simple_window(struct Point,int,int,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (??0Simple_window@@$$FQAE@UPoint@@HHABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) referenced in function "int __cdecl main(void)" (?main@@$$HYAHXZ)

Answer 19

1>main.obj : error LNK2028: unresolved token (0A000408) "public: virtual __thiscall Fl_Window::~Fl_Window(void)" (??1Fl_Window@@$$FUAE@XZ) referenced in function "public: virtual __thiscall Graph_lib::Window::~Window(void)" (??1Window@Graph_lib@@$$FUAE@XZ)

Your previous errors were compiler errors (or warnings). This and the other errors in this post are linker errors. It would seem that you are using an external library that you have not linked correctly.
 

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David Wilkinson | Visual C++ MVP

Answer 20

Hi,

Welcome here.

Here you asked the same question:

http://social.msdn.microsoft.com/Forums/en-US/vcgeneral/thread/ca8dd1e4-dba6-451b-83a2-31a78c35a3b6

So I will merge this one to the original, thanks for your understanding.

Regards,

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Elegentin Xie [MSFT]
MSDN Community Support | Feedback to us

Answer 21

i maked access path , where is my mistake ?

Answer 22

i maked access path , where is my mistake ?

1. In Project Properties->Configuration Properties->Linker->General->Additional Library Directories, place the path to the directory where your library (.lib) is located.

2. In Project Properties->Configuration Properties->Linker->Input put the name of the library (xxx.lib).

Clarification: Library name goes in Linker->Input->Additional Dependencies

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David Wilkinson | Visual C++ MVP

Answer 23

2 . In Additional Dependencies ? have to i put all library , only directory is correct ?

Answer 24

2 . In Additional Dependencies ? have to i put all library , only directory is correct ?

Only the library name (xxx.lib) gooes in Linker->Input->Additional Dependencies.
 
The path goes in Linker->General->Additional Library Directories
 

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David Wilkinson | Visual C++ MVP

Answer 25

1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\GUI\GUI.h : fatal error LNK1107: invalid or corrupt file: cannot read at 0xF62

Answer 26

1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\GUI\GUI.h : fatal error LNK1107: invalid or corrupt file: cannot read at 0xF62

Are you trying to link this Gui.h file? It makes no sense to link a header file.
 
The only type of file you should try to link is .lib (static library or import library).
 

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David Wilkinson | Visual C++ MVP

Answer 27

how is correct link ? what ought i do ?

Answer 28

how is correct link ? what ought i do ?

If the library is already built, you just link the .lib file as I have described.
 
What form does this library come in? Perhaps you need to build it yourself. Any third party library should come with instructions.
 

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David Wilkinson | Visual C++ MVP

Answer 29

Hi,
I have been watching this issue for a while now. I do appreciate your time and effort on this issue.
According to your description, you issue has not a solid answer; I think it should be better if we change the thread type to General Discussion.
Thanks for your understanding and active participation in the MSDN Forum.
Regards,

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Elegentin Xie [MSFT]
MSDN Community Support | Feedback to us