From 08732d4f570eedf1c6471a07590f52be629f8c02 Mon Sep 17 00:00:00 2001 From: nobu Date: Thu, 21 May 2009 12:07:25 +0000 Subject: * missing/vsnprintf.c (BSD_vfprintf): support for 'z' modifier. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@23509 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- missing/vsnprintf.c | 83 ++++++++++++++++++++++++++++++++++++----------------- 1 file changed, 56 insertions(+), 27 deletions(-) (limited to 'missing') diff --git a/missing/vsnprintf.c b/missing/vsnprintf.c index 5f8a6a53fc..840346c325 100644 --- a/missing/vsnprintf.c +++ b/missing/vsnprintf.c @@ -223,7 +223,7 @@ struct __siov { struct __suio { struct __siov *uio_iov; int uio_iovcnt; - int uio_resid; + size_t uio_resid; }; #if !defined(HAVE_VSNPRINTF) || !defined(HAVE_SNPRINTF) @@ -520,7 +520,7 @@ static int exponent __P((char *, int, int)); #define SHORTINT 0x040 /* short integer */ #define ZEROPAD 0x080 /* zero (as opposed to blank) pad */ #define FPT 0x100 /* Floating point number */ -static int +static ssize_t BSD_vfprintf(FILE *fp, const char *fmt0, va_list ap) { register const char *fmt; /* format string */ @@ -529,7 +529,7 @@ BSD_vfprintf(FILE *fp, const char *fmt0, va_list ap) register const char *cp;/* handy char pointer (short term usage) */ register struct __siov *iovp;/* for PRINT macro */ register int flags; /* flags as above */ - int ret; /* return value accumulator */ + ssize_t ret; /* return value accumulator */ int width; /* width from format (%8d), or 0 */ int prec; /* precision from format (%.3d), or -1 */ char sign; /* sign prefix (' ', '+', '-', or \0) */ @@ -547,8 +547,8 @@ BSD_vfprintf(FILE *fp, const char *fmt0, va_list ap) #endif /* _HAVE_SANE_QUAD_ */ int base; /* base for [diouxX] conversion */ int dprec; /* a copy of prec if [diouxX], 0 otherwise */ - int fieldsz; /* field size expanded by sign, etc */ - int realsz; /* field size expanded by dprec */ + long fieldsz; /* field size expanded by sign, etc */ + long realsz; /* field size expanded by dprec */ int size; /* size of converted field or string */ const char *xdigs = 0; /* digits for [xX] conversion */ #define NIOV 8 @@ -557,6 +557,9 @@ BSD_vfprintf(FILE *fp, const char *fmt0, va_list ap) char buf[BUF]; /* space for %c, %[diouxX], %[eEfgG] */ char ox[2]; /* space for 0x hex-prefix */ char *const ebuf = buf + sizeof(buf); +#if SIZEOF_LONG > SIZEOF_INT + long ln; +#endif /* * Choose PADSIZE to trade efficiency vs. size. If larger printf @@ -592,6 +595,19 @@ BSD_vfprintf(FILE *fp, const char *fmt0, va_list ap) PRINT(with, n); \ } \ } +#if SIZEOF_LONG > SIZEOF_INT + /* abandon if too larger padding */ +#define PAD_L(howmany, with) { \ + ln = (howmany); + if ((long)((int)ln) != ln) { \ + errno = ENOMEM; \ + goto error; \ + } \ + if (ln > 0) PAD((int)ln, with); \ +} +#else +#define PAD_L(howmany, with) PAD(howmany, with) +#endif #define FLUSH() { \ if (uio.uio_resid && BSD__sprint(fp, &uio)) \ goto error; \ @@ -628,11 +644,12 @@ BSD_vfprintf(FILE *fp, const char *fmt0, va_list ap) * Scan the format for conversions (`%' character). */ for (;;) { + size_t nc; for (cp = fmt; (ch = *fmt) != '\0' && ch != '%'; fmt++) /* void */; - if ((n = fmt - cp) != 0) { - PRINT(cp, n); - ret += n; + if ((nc = fmt - cp) != 0) { + PRINT(cp, nc); + ret += nc; } if (ch == '\0') goto done; @@ -715,6 +732,9 @@ reswitch: switch (ch) { goto rflag; #if SIZEOF_PTRDIFF_T == SIZEOF_LONG case 't': +#endif +#if SIZEOF_SIZE_T == SIZEOF_LONG + case 'z': #endif case 'l': flags |= LONGINT; @@ -722,6 +742,9 @@ reswitch: switch (ch) { #ifdef _HAVE_SANE_QUAD_ #if SIZEOF_PTRDIFF_T == SIZEOF_LONG_LONG case 't': +#endif +#if SIZEOF_SIZE_T == SIZEOF_LONG_LONG + case 'z': #endif case 'q': flags |= QUADINT; @@ -832,9 +855,9 @@ fp_begin: _double = va_arg(ap, double); #endif /* _HAVE_SANE_QUAD_ */ *va_arg(ap, long *) = ret; else if (flags & SHORTINT) - *va_arg(ap, short *) = ret; + *va_arg(ap, short *) = (short)ret; else - *va_arg(ap, int *) = ret; + *va_arg(ap, int *) = (int)ret; continue; /* no output */ case 'O': flags |= LONGINT; @@ -856,7 +879,7 @@ fp_begin: _double = va_arg(ap, double); * defined manner.'' * -- ANSI X3J11 */ - prec = sizeof(void*)*CHAR_BIT/4; + prec = (int)(sizeof(void*)*CHAR_BIT/4); #ifdef _HAVE_LLP64_ uqval = (u_long)va_arg(ap, void *); flags = (flags) | QUADINT | HEXPREFIX; @@ -883,14 +906,15 @@ fp_begin: _double = va_arg(ap, double); */ const char *p = (char *)memchr(cp, 0, prec); - if (p != NULL) { - size = p - cp; - if (size > prec) - size = prec; - } else + if (p != NULL && (p - cp) > prec) + size = (int)(p - cp); + else size = prec; - } else - size = strlen(cp); + } + else { + fieldsz = strlen(cp); + goto long_len; + } sign = '\0'; break; case 'U': @@ -956,7 +980,7 @@ number: if ((dprec = prec) >= 0) cp = BSD__ultoa(ulval, ebuf, base, flags & ALT, xdigs); } - size = ebuf - cp; + size = (int)(ebuf - cp); break; default: /* "%?" prints ?, unless ? is NUL */ if (ch == '\0') @@ -984,6 +1008,7 @@ number: if ((dprec = prec) >= 0) * fieldsz excludes decimal prec; realsz includes it. */ fieldsz = size; +long_len: if (sign) fieldsz++; else if (flags & HEXPREFIX) @@ -992,7 +1017,7 @@ number: if ((dprec = prec) >= 0) /* right-adjusting blank padding */ if ((flags & (LADJUST|ZEROPAD)) == 0) - PAD(width - realsz, blanks); + PAD_L(width - realsz, blanks); /* prefix */ if (sign) { @@ -1005,15 +1030,19 @@ number: if ((dprec = prec) >= 0) /* right-adjusting zero padding */ if ((flags & (LADJUST|ZEROPAD)) == ZEROPAD) - PAD(width - realsz, zeroes); + PAD_L(width - realsz, zeroes); /* leading zeroes from decimal precision */ - PAD(dprec - fieldsz, zeroes); + PAD_L(dprec - fieldsz, zeroes); + if (sign) + fieldsz--; + else if (flags & HEXPREFIX) + fieldsz -= 2; /* the string or number proper */ #ifdef FLOATING_POINT if ((flags & FPT) == 0) { - PRINT(cp, size); + PRINT(cp, fieldsz); } else { /* glue together f_p fragments */ if (ch >= 'f') { /* 'f' or 'g' */ if (_double == 0) { @@ -1058,11 +1087,11 @@ number: if ((dprec = prec) >= 0) } } #else - PRINT(cp, size); + PRINT(cp, fieldsz); #endif /* left-adjusting padding (always blank) */ if (flags & LADJUST) - PAD(width - realsz, blanks); + PAD_L(width - realsz, blanks); /* finally, adjust ret */ ret += width > realsz ? width : realsz; @@ -1119,7 +1148,7 @@ cvt(value, ndigits, flags, sign, decpt, ch, length, buf) while (rve < bp) *rve++ = '0'; } - *length = rve - digits; + *length = (int)(rve - digits); return (digits); } @@ -1151,7 +1180,7 @@ exponent(p0, exp, fmtch) *p++ = '0'; *p++ = to_char(exp); } - return (p - p0); + return (int)(p - p0); } #endif /* FLOATING_POINT */ -- cgit v1.2.3