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Views: 1824 | Replies: 1
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Join Date: Oct 2006
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Junior Poster in Training
how do i send a multidimensional char array to a function.
i try assigning values like this :
and then sending it like this:
when i compile it gives a warning:
and when i debug with gdb debugger, just before entering into WriteValues function, it gives segmentation fault. It never enters in.
why?
WriteValues function is here:
thanx.
i try assigning values like this :
char ChrArrayAttributes[2][20]; strcpy(ChrArrayAttributes[0],"TIME"); strcpy(ChrArrayAttributes[1],"IDENT");
and then sending it like this:
WriteValues("/pp1/reb","RADR",ChrArrayAttributes);when i compile it gives a warning:
Test.c:115: warning: passing arg 3 of `WriteValues' from incompatible pointer type
and when i debug with gdb debugger, just before entering into WriteValues function, it gives segmentation fault. It never enters in.
why?
WriteValues function is here:
void WriteValues(char * sDBName, char * sTableName, char * ChrArrayAttr[])
{
int i = 0;
/* Trying to write values TIME and IDENT to the screen */
for(i=0; i<2; i++)
{
printf("ChrArrayAttr[%d]=%s\n",i,ChrArrayAttr[i]);
}
}thanx.
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Join Date: Dec 2005
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> void WriteValues(char * sDBName, char * sTableName, char * ChrArrayAttr[])
There are several compatible declarations for passing a 2D array - one of them is really easy.
The first is dead easy, you simply copy/paste the declaration of the array you want to pass, into the parameter position of the function you want to pass it to.
The occasional compiler / tool will fuss over the specification of the major dimension, but it's easy to remove with a quick edit.
As with any other array parameter, you just use the array name (like you do now).
There are several compatible declarations for passing a 2D array - one of them is really easy.
void WriteValues(char *sDBName, char *sTableName, char ChrArrayAttributes[2][20] ) void WriteValues(char *sDBName, char *sTableName, char ChrArrayAttributes[][20] ) void WriteValues(char *sDBName, char *sTableName, char (*ChrArrayAttributes)[20] )
The occasional compiler / tool will fuss over the specification of the major dimension, but it's easy to remove with a quick edit.
As with any other array parameter, you just use the array name (like you do now).
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