Dear Rooters
In order to extract variables from "const char *varlist",
with e.g. varlist = "x:y:z:a", I have created the following
function to get:
TString var1 = SubString("x:y:z:a", ":", 1);
TString var2 = SubString("x:y:z:a", ":", 2);
//-------------------------
TString SubString(const char *name, const char *sep, Int_t n)
{
// Extract substring from name at separator number n
TString outname = TString(name);
char *tmpname = new char[strlen(name) + 1];
Int_t idx = 0;
tmpname = strtok(strcpy(tmpname,name),sep);
while(tmpname) {
outname = tmpname;
if (idx == n) break;
tmpname = strtok(NULL,sep);
idx++;
}//while
delete [] tmpname; //<======== Problem
return outname;
}//SubString
//------------------------
However, often, I get the following error:
*** malloc[416]: Deallocation of a pointer not malloced: 0x1b2d565;
This could be a double free(), or free() called with the middle of
an allocated block; Try setting environment variable MallocHelp to
see tools to help debug
Can you tell me if I have to delete tmpname or not?
Does the TString class offer me a better way?
Thank you in advance for your help.
Best regards
Christian
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