John, I have been trying to reproduce your warning with the following pseudo-code: unsigned long foo() { static const unsigned long masks[20] = { 0, 0x0104u, // C1_ALPHA | C1_DIGIT 0x0100u, // C1_ALPHA 0x0040u, // C1_BLANK 0x0020u, // C1_CNTRL 0x0004u, // C1_DIGIT 0x0004u, // C1_DIGIT (~(0x0020u|0x0008u|0x0040) & 0x01ffu) | 0x0400u, // not C1_CNTRL or C1_SPACE or C1_BLANK 0x0002u, // C1_LOWER 0x0002u, // C1_LOWER (~0x0020u & 0x01ffu) | 0x0400, // not C1_CNTRL 0x0010u, // C1_PUNCT 0x0008u, // C1_SPACE 0x0008u, // C1_SPACE 0x0001u, // C1_UPPER 0x0800, 0x0001u, // C1_UPPER 0x0104u | (1u << 25), 0x0104u | (1u << 25), 0x0080u, // C1_XDIGIT }; //int id1 = -1; //no error //int id1 = 18; //no error int id1 = 19; //error C6385: Invalid data: accessing 'unsigned long const * const `unsigned long __cdecl foo(void)'::`2'::masks', the readable size is '80' bytes, but '84' bytes might be read: Lines: 80, 106, 107, 108, 109 std::size_t id = (1 + id1); _ASSERTE(id < (sizeof(masks) / sizeof(masks[0]))); return masks[id]; } The only time that I get warning 6385 is when id is equal to or exceeds the size of the array. It is a little strange in that the warning only occurs when the line beginning with _ASSERTE is added. There should be an error even without the debug assertion. Nevertheless this suggests that there may be a case where re_detail::get_default_class_id(() returns a value in excess of 18 leading to the warning. The following pseudo-code compiles without warning or error and has the slight advantage if protecting release as well as debug builds: std::size_t id = (1 + re_detail::get_default_class_id(p1, p2)); if(id < sizeof(masks) / sizeof(masks[0])) return masks[id]; return masks[0];
Understood, but what other warnings were you seeing? <
Here is the build log which already incorporates the above code fragment: http://users.erols.com/gmgarner/boost/BuildLog_regex.txt. Also, the build incorporates the following warningstate.h file: http://users.erols.com/gmgarner/boost/WarningState.h; and I added the following lines to visualc.hpp: #if (_MSC_VER >= 1400) #include "warningstate.h" #endif //(_MSC_VER >= 1400) Regards, George.