New checks:

• wrong value passed to isgraph
• missuse of std::cout
• some warnings when sizeof is used on pointer variable
• endless loop because of unsigned comparison
• better check for missing break in switch (redundant strcpy)
• using && instead of & in expression
• wrong usage of printf/scanf/etc (format string and parameters mismatch)
• useless calls of STL functions (wrong usage)
• detect suspicicous use of semicolon after if/for/while (--inconclusive)
• added checking of readlink() usage
• boolean comparison with string literals

For details, see this page: http://sourceforge.net/apps/trac/cppcheck/milestone/1.52