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authorUlrich Drepper <drepper@redhat.com>2000-12-16 07:54:18 +0000
committerUlrich Drepper <drepper@redhat.com>2000-12-16 07:54:18 +0000
commit887e7ab6c5a13398e5986c7054235a135e6429f9 (patch)
tree04556d2595001782246223937c3a43c58d4b9f63 /misc/efgcvt.c
parentbafd15679c55e35440a9fd11069614b43559413c (diff)
downloadglibc-887e7ab6c5a13398e5986c7054235a135e6429f9.tar.gz
Update.
2000-12-13 Jakub Jelinek <jakub@redhat.com> * misc/efgcvt.c (FCVT_MAXDIG): Define. (FCVT_BUFPTR): New variable. (fcvt): If fcvt_r returns -1 on the static short buffer, try to malloc a sufficiently large one and retry. (free_mem): New function. * misc/qefgcvt.c (FCVT_MAXDIG): Define. * misc/tst-efgcvt.c (fcvt_tests): Add new test. 2000-12-15 Ulrich Drepper <drepper@redhat.com> * misc/dirname.c (dirname): Fix search for second to last slash. 2000-12-13 Andreas Jaeger <aj@suse.de> * misc/tst-dirname.c (main): Fix typo in test to really use the examples from Unix98. Reported by Michael Kerrisk <mtk16@ext.canterbury.ac.nz>.
Diffstat (limited to 'misc/efgcvt.c')
-rw-r--r--misc/efgcvt.c29
1 files changed, 26 insertions, 3 deletions
diff --git a/misc/efgcvt.c b/misc/efgcvt.c
index 37b4bc0163..5196c10565 100644
--- a/misc/efgcvt.c
+++ b/misc/efgcvt.c
@@ -31,6 +31,7 @@
/* Actually we have to write (DBL_DIG + log10 (DBL_MAX_10_EXP)) but we
don't have log10 available in the preprocessor. */
# define MAXDIG (NDIGIT_MAX + 3)
+# define FCVT_MAXDIG (DBL_MAX_10_EXP + MAXDIG)
# if DBL_MANT_DIG == 53
# define NDIGIT_MAX 17
# elif DBL_MANT_DIG == 24
@@ -50,22 +51,34 @@
#define FCVT_BUFFER APPEND (FUNC_PREFIX, fcvt_buffer)
+#define FCVT_BUFPTR APPEND (FUNC_PREFIX, fcvt_bufptr)
#define ECVT_BUFFER APPEND (FUNC_PREFIX, ecvt_buffer)
static char FCVT_BUFFER[MAXDIG];
static char ECVT_BUFFER[MAXDIG];
-
+static char *FCVT_BUFPTR;
char *
APPEND (FUNC_PREFIX, fcvt) (value, ndigit, decpt, sign)
FLOAT_TYPE value;
int ndigit, *decpt, *sign;
{
+ if (FCVT_BUFPTR == NULL)
+ {
+ if (APPEND (FUNC_PREFIX, fcvt_r) (value, ndigit, decpt, sign,
+ FCVT_BUFFER, MAXDIG) != -1)
+ return FCVT_BUFFER;
+
+ FCVT_BUFPTR = (char *) malloc (FCVT_MAXDIG);
+ if (FCVT_BUFPTR == NULL)
+ return FCVT_BUFFER;
+ }
+
(void) APPEND (FUNC_PREFIX, fcvt_r) (value, ndigit, decpt, sign,
- FCVT_BUFFER, MAXDIG);
+ FCVT_BUFPTR, FCVT_MAXDIG);
- return FCVT_BUFFER;
+ return FCVT_BUFPTR;
}
@@ -89,3 +102,13 @@ APPEND (FUNC_PREFIX, gcvt) (value, ndigit, buf)
sprintf (buf, "%.*" FLOAT_FMT_FLAG "g", MIN (ndigit, NDIGIT_MAX), value);
return buf;
}
+
+/* Free all resources if necessary. */
+static void __attribute__ ((unused))
+free_mem (void)
+{
+ if (FCVT_BUFPTR != NULL)
+ free (FCVT_BUFPTR);
+}
+
+text_set_element (__libc_subfreeres, free_mem);