diff options
| -rw-r--r-- | ChangeLog | 3 | ||||
| -rw-r--r-- | stdio-common/printf_fp.c | 17 | ||||
| -rw-r--r-- | stdio-common/vfscanf.c | 36 |
3 files changed, 29 insertions, 27 deletions
@@ -1,5 +1,8 @@ 2007-02-19 Ulrich Drepper <drepper@redhat.com> + * stdio-common/printf_fp.c (___printf_fp): Cleanups and minor + optimization. + * stdio-common/vfscanf.c: Small cleanups throughout. 2007-02-18 Ulrich Drepper <drepper@redhat.com> diff --git a/stdio-common/printf_fp.c b/stdio-common/printf_fp.c index e4e32f9..cbc3143 100644 --- a/stdio-common/printf_fp.c +++ b/stdio-common/printf_fp.c @@ -1,6 +1,6 @@ /* Floating point output for `printf'. - Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2006 - Free Software Foundation, Inc. + Copyright (C) 1995-2003, 2006, 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. @@ -811,12 +811,14 @@ ___printf_fp (FILE *fp, int chars_needed; int expscale; int intdig_max, intdig_no = 0; - int fracdig_min, fracdig_max, fracdig_no = 0; + int fracdig_min; + int fracdig_max; int dig_max; int significant; int ngroups = 0; + char spec = _tolower (info->spec); - if (_tolower (info->spec) == 'e') + if (spec == 'e') { type = info->spec; intdig_max = 1; @@ -826,7 +828,7 @@ ___printf_fp (FILE *fp, dig_max = INT_MAX; /* Unlimited. */ significant = 1; /* Does not matter here. */ } - else if (_tolower (info->spec) == 'f') + else if (spec == 'f') { type = 'f'; fracdig_min = fracdig_max = info->prec < 0 ? 6 : info->prec; @@ -887,7 +889,7 @@ ___printf_fp (FILE *fp, other output. If the amount of memory we have to allocate is too large use `malloc' instead of `alloca'. */ buffer_malloced = ! __libc_use_alloca (chars_needed * 2 * sizeof (wchar_t)); - if (buffer_malloced) + if (__builtin_expect (buffer_malloced, 0)) { wbuffer = (wchar_t *) malloc ((2 + chars_needed) * sizeof (wchar_t)); if (wbuffer == NULL) @@ -923,6 +925,7 @@ ___printf_fp (FILE *fp, } /* Generate the needed number of fractional digits. */ + int fracdig_no = 0; while (fracdig_no < fracdig_min || (fracdig_no < fracdig_max && (fracsize > 1 || frac[0] != 0))) { @@ -972,7 +975,7 @@ ___printf_fp (FILE *fp, /* Process fractional digits. Terminate if not rounded or radix character is reached. */ while (*--wtp != decimalwc && *wtp == L'9') - *wtp = '0'; + *wtp = L'0'; if (*wtp != decimalwc) /* Round up. */ (*wtp)++; diff --git a/stdio-common/vfscanf.c b/stdio-common/vfscanf.c index c7d8a07..0daf4ae 100644 --- a/stdio-common/vfscanf.c +++ b/stdio-common/vfscanf.c @@ -52,18 +52,19 @@ #endif /* Those are flags in the conversion format. */ -#define LONG 0x001 /* l: long or double */ -#define LONGDBL 0x002 /* L: long long or long double */ -#define SHORT 0x004 /* h: short */ -#define SUPPRESS 0x008 /* *: suppress assignment */ -#define POINTER 0x010 /* weird %p pointer (`fake hex') */ -#define NOSKIP 0x020 /* do not skip blanks */ -#define NUMBER_SIGNED 0x040 /* signed integer */ -#define GROUP 0x080 /* ': group numbers */ -#define MALLOC 0x100 /* a: malloc strings */ -#define CHAR 0x200 /* hh: char */ -#define I18N 0x400 /* I: use locale's digits */ -#define HEXA_FLOAT 0x800 /* hexadecimal float */ +#define LONG 0x0001 /* l: long or double */ +#define LONGDBL 0x0002 /* L: long long or long double */ +#define SHORT 0x0004 /* h: short */ +#define SUPPRESS 0x0008 /* *: suppress assignment */ +#define POINTER 0x0010 /* weird %p pointer (`fake hex') */ +#define NOSKIP 0x0020 /* do not skip blanks */ +#define NUMBER_SIGNED 0x0040 /* signed integer */ +#define GROUP 0x0080 /* ': group numbers */ +#define MALLOC 0x0100 /* a: malloc strings */ +#define CHAR 0x0200 /* hh: char */ +#define I18N 0x0400 /* I: use locale's digits */ +#define HEXA_FLOAT 0x0800 /* hexadecimal float */ +#define READ_POINTER 0x1000 /* this is a pointer value */ #include <locale/localeinfo.h> @@ -236,8 +237,6 @@ _IO_vfscanf_internal (_IO_FILE *s, const char *format, _IO_va_list argptr, possibly be matched even if in the input stream no character is available anymore. */ int skip_space = 0; - /* Nonzero if we are reading a pointer. */ - int read_pointer; /* Workspace. */ CHAR_T *tw; /* Temporary pointer. */ CHAR_T *wp = NULL; /* Workspace. */ @@ -400,9 +399,6 @@ _IO_vfscanf_internal (_IO_FILE *s, const char *format, _IO_va_list argptr, /* This is the start of the conversion string. */ flags = 0; - /* Not yet decided whether we read a pointer or not. */ - read_pointer = 0; - /* Initialize state of modifiers. */ argpos = 0; @@ -1489,7 +1485,7 @@ _IO_vfscanf_internal (_IO_FILE *s, const char *format, _IO_va_list argptr, /* There was no number. If we are supposed to read a pointer we must recognize "(nil)" as well. */ if (__builtin_expect (wpsize == 0 - && read_pointer + && (flags & READ_POINTER) && (width < 0 || width >= 0) && c == '(' && TOLOWER (inchar ()) == L_('n') @@ -1981,7 +1977,7 @@ _IO_vfscanf_internal (_IO_FILE *s, const char *format, _IO_va_list argptr, got_dot = 1; } else if (n == 10 && (flags & GROUP) != 0 - && thousands != NULL && ! got_dot) + && ! got_dot) { /* Add all the characters. */ for (cmpp = thousands; *cmpp != '\0'; @@ -2574,7 +2570,7 @@ _IO_vfscanf_internal (_IO_FILE *s, const char *format, _IO_va_list argptr, flags &= ~(SHORT|LONGDBL); if (need_long) flags |= LONG; - read_pointer = 1; + flags |= READ_POINTER; goto number; default: |