C / C++ / MFC

name.substr(name.find_first_not_of(' '));

std::string name = "ABCD";

int pos = name.find_first_not_of(' ');
if (pos != std::string::npos)
{
	name.erase(0, pos);
}

name.erase(std::remove(name.begin(), name.end(), ' '), name.end());

/* String trimming templates.
 * Written by Markus B. Krüger (markusk@pvv.org)
 * Found at USENET:
 *   Subject: Re: trim in standard lib? 
 *   Newsgroups: comp.lang.c++.moderated
 *   Date: 2001-07-13 19:21:08 PST
 *   URL (Google): http://groups.google.com/groups?hl=en&selm=du38zhtjjze.fsf%40proto.pvv.ntnu.no
 *
 * NB: There's a typo on the original message. On trim_right(String& str, Ch ws), replace
 *
 *   if ((last_nonblank = str.find_last_not_of(' ')) != String::npos)
 *
 * with
 *   if ((last_nonblank = str.find_last_not_of(ws)) != String::npos)
 */
 
#ifndef TRIMTEMPLATES_H
#define TRIMTEMPLATES_H
 
#define VERSION_TRIMTEMPLATES 0x00010000
 
template<class String,class Ch>
inline String& trim_left(String& str,Ch ws)
{
  typename String::size_type first_nonblank;
  if ((first_nonblank=str.find_first_not_of(ws))!=String::npos)
    return str.erase(0, first_nonblank);
  else
    return str;
}  
 
template<class String>
inline String& trim_left(String& str)
{
  return trim_left(str, ' ');
}
 
template<class String,class Ch>
inline String& trim_right(String& str,Ch ws)
{
  typename String::size_type last_nonblank;
  if((last_nonblank=str.find_last_not_of(ws))!= String::npos)
    return str.erase(last_nonblank+1);
  else
    return str;
}  
 
template<class String>
inline String& trim_right(String& str)
{
  return trim_right(str, ' ');
}
 
template<class String,class Ch>
inline String& trim(String& str,Ch ws)
{
  return trim_left(trim_right(str, ws),ws);
}
 
template<class String>
inline String& trim(String& str)
{ 
  return trim_left(trim_right(str));
}
 
#elif VERSION_TRIMTEMPLATES!=0x00010000
#error You have included two LISTPORTS.H with different version numbers
#endif