これは、GCCによって生成されたがMSVCによっては生成されなかった非常に奇妙なエラーを含むコードです(5つのエラー、エラー行のコメント形式で引用):
/* Match STRING against the filename pattern PATTERN, returning zero if
it matches, nonzero if not. */
int GNU_fnmatch (const char* pattern,const char* string,int flags)
{
register const char *p = pattern, *n = string;
register unsigned char c;
#define FNM_CASEFOLD 16
#define FNM_LEADING_DIR 8
#define FOLD(c) ((flags & FNM_CASEFOLD) ? tolower (c) : (c))
while ((c = *p++) != '\0')
{
c = FOLD (c);
switch (c)
{
case '?':
if (*n == '\0')
return 1;
else if ((flags & FNM_PATHNAME) && *n == '/')
return 1;
else if ((flags & FNM_PERIOD) && *n == '.' &&
(n == string || ((flags & FNM_PATHNAME) && n[-1] == '/')))
return 1;
break;
case '\\':
if (!(flags & FNM_NOESCAPE))
{
c = *p++;
c = FOLD (c);
}
if (FOLD ((unsigned char)*n) != c)
return 1;
break;
case '*':
if ((flags & FNM_PERIOD) && *n == '.' &&
(n == string || ((flags & FNM_PATHNAME) && n[-1] == '/')))
return 1;
for (c = *p++; c == '?' || c == '*'; c = *p++, ++n)
if (((flags & FNM_PATHNAME) && *n == '/') ||
(c == '?' && *n == '\0'))
return 1;
if (c == '\0')
return 0;
{
unsigned char c1 = (!(flags & FNM_NOESCAPE) && c == '\\') ? *p : c;
c1 = FOLD (c1);
for (--p; *n != '\0'; ++n)
if ((c == '[' || FOLD ((unsigned char)*n) == c1) &&
GNU_fnmatch (p, n, flags & ~FNM_PERIOD) == 0)
return 0;
return 1;
}
case '[':
{
/* Nonzero if the sense of the character class is inverted. */
register int not; // Error 1 error : expected unqualified-id before '!' token
if (*n == '\0')
return 1;
if ((flags & FNM_PERIOD) && *n == '.' &&
(n == string || ((flags & FNM_PATHNAME) && n[-1] == '/')))
return 1;
not = (*p == '!' || *p == '^'); // Error 2 error : expected primary-expression before '=' token
if (not) // Error 3 error : expected primary-expression before ')' token
++p;
c = *p++;
for (;;)
{
register unsigned char cstart = c, cend = c;
if (!(flags & FNM_NOESCAPE) && c == '\\')
cstart = cend = *p++;
cstart = cend = FOLD (cstart);
if (c == '\0')
/* [ (unterminated) loses. */
return 1;
c = *p++;
c = FOLD (c);
if ((flags & FNM_PATHNAME) && c == '/')
/* [/] can never match. */
return 1;
if (c == '-' && *p != ']')
{
cend = *p++;
if (!(flags & FNM_NOESCAPE) && cend == '\\')
cend = *p++;
if (cend == '\0')
return 1;
cend = FOLD (cend);
c = *p++;
}
if (FOLD ((unsigned char)*n) >= cstart
&& FOLD ((unsigned char)*n) <= cend)
goto matched;
if (c == ']')
break;
}
if (!not) // Error 4 error : expected primary-expression before ')' token
return 1;
break;
matched:;
/* Skip the rest of the [...] that already matched. */
while (c != ']')
{
if (c == '\0')
/* [... (unterminated) loses. */
return 1;
c = *p++;
if (!(flags & FNM_NOESCAPE) && c == '\\')
/* XXX 1003.2d11 is unclear if this is right. */
++p;
}
if (not) // Error 5 error : expected primary-expression before ')' token
return 1;
}
break;
default:
if (c != FOLD ((unsigned char)*n))
return 1;
}
++n;
}
if (*n == '\0')
return 0;
if ((flags & FNM_LEADING_DIR) && *n == '/')
/* The FNM_LEADING_DIR flag says that "foo*" matches "foobar/frobozz". */
return 0;
return 1;
}
つまり、存在しないことをせがんで、それは意味がありません'!' トークン(エラー1)!!!