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Top Forums Programming Unable to assign zero to unsigned character array Post 302757023 by gthangav on Thursday 17th of January 2013 02:47:13 AM
Old 01-17-2013
Unable to assign zero to unsigned character array

Hi,

I am unable to assign value zero to my variable which is defined as unsigned char.

Code:
    typedef struct ABCD
   {
   unsigned char abc[6];
   unsigned char def;
   unsigned char ghi;
   } ABCD;
   typedef ABCD *PABCD;

In my Por*C code, i assign the values using memcpy like below

void abc(PABCD s_tag)
{
memset((char*)(s_tag), '0',sizeof(s_tag));
memcpy((char*)s_tag.abc,"000000",sizeof(s_tag.abc));
s_tag.def = 0;
s_tag.ghi=0;
}


In debug mode, i could see '\0'.....How to make the value as '0' only:confused:?

(dbx) print -L *s_tag
*s_tag = {
        s_tag.abc  = "000000"
        s_tag.def = '\0'
        s_tag.ghi = '\0'
         }

 

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XcmsColor(3X11) 						  XLIB FUNCTIONS						   XcmsColor(3X11)

NAME
XcmsColor, XcmsRGB, XcmsRGBi, XcmsCIEXYZ, XcmsCIEuvY, XcmsCIExyY, XcmsCIELab, XcmsCIELuv, XcmsTekHVC, XcmsPad - Xcms color struture STRUCTURES
The structure for XcmsColor contains: typedef unsigned long XcmsColorFormat; typedef struct { union { XcmsRGB RGB; XcmsRGBi RGBi; XcmsCIEXYZ CIEXYZ; XcmsCIEuvY CIEuvY; XcmsCIExyY CIExyY; XcmsCIELab CIELab; XcmsCIELuv CIELuv; XcmsTekHVC TekHVC; XcmsPad Pad; } spec; unsigned long pixel; XcmsColorFormat format; } XcmsColor; typedef double XcmsFloat; typedef struct { unsigned short red; unsigned short green; unsigned short blue; } XcmsRGB; typedef struct { XcmsFloat red; XcmsFloat green; XcmsFloat blue; } XcmsRGBi; typedef struct { XcmsFloat X; XcmsFloat Y; XcmsFloat Z; } XcmsCIEXYZ; typedef struct { XcmsFloat u_prime; XcmsFloat v_prime; XcmsFloat Y; } XcmsCIEuvY; typedef struct { XcmsFloat x; XcmsFloat y; XcmsFloat Y; } XcmsCIExyY; typedef struct { XcmsFloat L_star; XcmsFloat a_star; XcmsFloat b_star; } XcmsCIELab; typedef struct { XcmsFloat L_star; XcmsFloat u_star; XcmsFloat v_star; } XcmsCIELuv; typedef struct { XcmsFloat H; XcmsFloat V; XcmsFloat C; } XcmsTekHVC; typedef struct { XcmsFloat pad0; XcmsFloat pad1; XcmsFloat pad2; XcmsFloat pad3; } XcmsPad; DESCRIPTION
The XcmsColor structure contains a union of substructures, each supporting color specification encoding for a particular color space. SEE ALSO
XcmsAllocColor(3X11), XcmsStoreColor(3X11), XcmsConvertColors(3X11), Xlib - C Language X Interface X Version 11 Release 6.6 XcmsColor(3X11)
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