diff options
Diffstat (limited to 'misc')
| -rw-r--r-- | misc/Makefile | 4 | ||||
| -rw-r--r-- | misc/efgcvt_r.c | 22 | ||||
| -rw-r--r-- | misc/tst-efgcvt.c | 34 |
3 files changed, 51 insertions, 9 deletions
diff --git a/misc/Makefile b/misc/Makefile index 1dfde43f7e..6c120bab65 100644 --- a/misc/Makefile +++ b/misc/Makefile @@ -1,4 +1,4 @@ -# Copyright (C) 1991, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc. +# Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98 Free Software Foundation, Inc. # This file is part of the GNU C Library. # The GNU C Library is free software; you can redistribute it and/or @@ -64,7 +64,7 @@ install-lib := libbsd-compat.a libg.a non-lib.a := libbsd-compat.a gpl2lgpl := error.c error.h -tests := tst-dirname tst-tsearch tst-fdset +tests := tst-dirname tst-tsearch tst-fdset tst-efgcvt include ../Rules diff --git a/misc/efgcvt_r.c b/misc/efgcvt_r.c index 69caef01d7..2dd0c9f02a 100644 --- a/misc/efgcvt_r.c +++ b/misc/efgcvt_r.c @@ -1,5 +1,5 @@ /* Compatibility functions for floating point formatting, reentrant versions. - Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. + Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -61,6 +61,17 @@ APPEND (FUNC_PREFIX, fcvt_r) (value, ndigit, decpt, sign, buf, len) if (*sign) value = -value; } + else + /* Value is Inf or NaN. */ + *sign = 0; + + if (ndigit <= 0) + { + if (len > 0) + buf[0] = '\0'; + *decpt = 0; + return 0; + } n = snprintf (buf, len, "%.*" FLOAT_FMT_FLAG "f", ndigit, value); if (n < 0) @@ -72,11 +83,8 @@ APPEND (FUNC_PREFIX, fcvt_r) (value, ndigit, decpt, sign, buf, len) *decpt = i; if (i == 0) - { - /* Value is Inf or NaN. */ - *sign = 0; - return 0; - } + /* Value is Inf or NaN. */ + return 0; if (i < n) { @@ -84,7 +92,7 @@ APPEND (FUNC_PREFIX, fcvt_r) (value, ndigit, decpt, sign, buf, len) ++i; while (i < n && !isdigit (buf[i])); memmove (&buf[*decpt], &buf[i], n - i); - buf[n - (i - *decpt)] = 0; + buf[n - (i - *decpt)] = '\0'; } return 0; diff --git a/misc/tst-efgcvt.c b/misc/tst-efgcvt.c new file mode 100644 index 0000000000..537f6da8a6 --- /dev/null +++ b/misc/tst-efgcvt.c @@ -0,0 +1,34 @@ +/* Copyright (C) 1998 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <stdio.h> +#include <stdlib.h> + +int +main (void) +{ + int decpt, sign; + char *p; + + p = ecvt (0.0, 0, &decpt, &sign); + printf ("p: \"%s\", decpt: %d, sign: %d\n", p, decpt, sign); + if (p[0] != '\0') + return 1; + + return 0; +} |