diff options
Diffstat (limited to 'lib/printf/vfprintf.c')
| -rw-r--r-- | lib/printf/vfprintf.c | 71 |
1 files changed, 64 insertions, 7 deletions
diff --git a/lib/printf/vfprintf.c b/lib/printf/vfprintf.c index cc886834fa..3f6700c838 100644 --- a/lib/printf/vfprintf.c +++ b/lib/printf/vfprintf.c @@ -8,7 +8,7 @@ * Chris Torek. * * Copyright (c) 2011 The FreeBSD Foundation - * All rights reserved. + * * Portions of this software were developed by David Chisnall * under sponsorship from the FreeBSD Foundation. * @@ -340,7 +340,7 @@ reswitch: switch (ch) { if (width >= 0) goto rflag; width = -width; - /* FALLTHROUGH */ + fallthrough; case '-': flags |= LADJUST; goto rflag; @@ -416,12 +416,68 @@ reswitch: switch (ch) { case 't': flags |= PTRDIFFT; goto rflag; + case 'w': + /* + * Fixed-width integer types. On all platforms we + * support, int8_t is equivalent to char, int16_t + * is equivalent to short, int32_t is equivalent + * to int, int64_t is equivalent to long long int. + * Furthermore, int_fast8_t, int_fast16_t and + * int_fast32_t are equivalent to int, and + * int_fast64_t is equivalent to long long int. + */ + flags &= ~(CHARINT|SHORTINT|LONGINT|LLONGINT|INTMAXT); + if (fmt[0] == 'f') { + flags |= FASTINT; + fmt++; + } else { + flags &= ~FASTINT; + } + if (fmt[0] == '8') { + if (!(flags & FASTINT)) + flags |= CHARINT; + else + (void) 0; /* no flag set = 32 */ + fmt += 1; + } else if (fmt[0] == '1' && fmt[1] == '6') { + if (!(flags & FASTINT)) + flags |= SHORTINT; + else + (void) 0; /* no flag set = 32 */ + fmt += 2; + } else if (fmt[0] == '3' && fmt[1] == '2') { + /* no flag set = 32 */ + fmt += 2; + } else if (fmt[0] == '6' && fmt[1] == '4') { + flags |= LLONGINT; + fmt += 2; + } else { + if (flags & FASTINT) { + flags &= ~FASTINT; + fmt--; + } + goto invalid; + } + goto rflag; case 'z': flags |= SIZET; goto rflag; + case 'B': + case 'b': + if (flags & INTMAX_SIZE) + ujval = UJARG(); + else + ulval = UARG(); + base = 2; + /* leading 0b/B only if non-zero */ + if (flags & ALT && + (flags & INTMAX_SIZE ? ujval != 0 : ulval != 0)) + ox[1] = ch; + goto nosign; + break; case 'C': flags |= LONGINT; - /*FALLTHROUGH*/ + fallthrough; case 'c': #ifdef WCHAR_SUPPORT if (flags & LONGINT) { @@ -447,7 +503,7 @@ reswitch: switch (ch) { break; case 'D': flags |= LONGINT; - /*FALLTHROUGH*/ + fallthrough; case 'd': case 'i': if (flags & INTMAX_SIZE) @@ -538,7 +594,7 @@ reswitch: switch (ch) { break; case 'O': flags |= LONGINT; - /*FALLTHROUGH*/ + fallthrough; case 'o': if (flags & INTMAX_SIZE) ujval = UJARG(); @@ -582,7 +638,7 @@ reswitch: switch (ch) { goto nosign; case 'S': flags |= LONGINT; - /*FALLTHROUGH*/ + fallthrough; case 's': #ifdef WCHAR_SUPPORT if (flags & LONGINT) { @@ -608,7 +664,7 @@ reswitch: switch (ch) { break; case 'U': flags |= LONGINT; - /*FALLTHROUGH*/ + fallthrough; case 'u': if (flags & INTMAX_SIZE) ujval = UJARG(); @@ -671,6 +727,7 @@ number: if ((dprec = prec) >= 0) default: /* "%?" prints ?, unless ? is NUL */ if (ch == '\0') goto done; +invalid: /* pretend it was %c with argument ch */ buf[0] = ch; cp = buf; |