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NEWS: Add more details.

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* NEWS: Update text.
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Mark H Weaver 2019-06-18 15:46:43 -04:00
parent c5c9ec9b1b
commit 8e2919b952
1 changed files with 57 additions and 7 deletions
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NEWS
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@ -69,23 +69,35 @@ encoding.
** Optimize fixnum exact integer square roots.
'exact-integer-sqrt' now avoids heap allocation when applied to a
fixnum. 'sqrt' also avoids heap allocation when applied to a fixnum
fixnum. 'sqrt' now avoids heap allocation when applied to a fixnum
that's a perfect square. Fewer heap allocations are now required when
applying 'sqrt' to squares of exact rationals whose numerator or
applying 'sqrt' to a square of an exact rational whose numerator or
denominator are fixnums.
** scm_mkstrport: Optimize the POS -> BYTE_POS conversion.
** stexi->shtml: Add support for @i, @math, @tie and @dots.
scm_mkstrport now avoids an unnecessary heap allocation and conversion
to UTF-8, when STR is provided and POS is non-zero.
** SRFI-19: Support ~N in string->date.
** SRFI-19: Update the leap second table.
** stexi->shtml: Add support for @i, @math, @tie and @dots.
** Define AT_SYMLINK_NOFOLLOW, AT_NO_AUTOMOUNT, and AT_EMPTY_PATH.
AT_SYMLINK_FOLLOW, AT_NO_AUTOMOUNT, and AT_EMPTY_PATH are now available
from Scheme, if supported on the platform.
** time: Support expressions that return any number of values.
** time: Use 'syntax-rules' instead of 'define-macro'.
** Improvements to the 'time' macro from (ice-9 time).
The 'time' macro now supports expressions that return multiple values.
It has also been rewritten as a hygienic 'syntax-rules' macro.
Previously, it was built using 'define-macro', and was therefore
unhygienic. This is not merely an internal implementation detail, but
is potentially relevant to any user of the 'time' macro, since it could
lead to unintended variable capture and other problems.
** Clarify the documentation for 'nil?'.
** Clarify the manual's "Processes" section.
** Avoid 'with-latin1-locale' in binary I/O tests.
@ -95,6 +107,10 @@ from Scheme, if supported on the platform.
** Avoid regexp ranges in HTTP inter-protocol exploitation check.
The regular expression used to check for HTTP inter-protocol
exploitation attacks previously used a character range '0-9', whose
meaning depends on the current locale. This has now been fixed.
** Fixes to the SRFI-19 time/date library.
*** Fix TAI->UTC conversions, leap second handling, etc.
@ -104,16 +120,50 @@ from Scheme, if supported on the platform.
*** Check for incompatible types in time comparisons.
** Improve overflow checks in bytevector, string, and I/O operations.
Several numerical computations, performed using primitive C arithmetic
in Guile's core bytevector, string, and I/O operations, have been
rewritten to avoid overflows.
** Fix type inferencing for 'nil?' and 'null?' predicates.
Previously, the compiler would sometimes miscompile certain combinations
of 'nil?' and 'null?' predicates present within the same top-level form.
See <https://bugs.gnu.org/33036>.
** Fix 'atomic-box-compare-and-swap!'.
Previously, 'atomic-box-compare-and-swap!' would sometimes spuriously
fail on architectures based on Load-Linked/Store-Conditional (LL/SC)
synchronication primitives (e.g. ARM, PowerPC, and MIPS) in a way that
was undetectable by the caller. See <https://bugs.gnu.org/32786>.
** Make URI handling locale independent.
Previously, procedures in (web uri) would misbehave in some locales
including sv_SE. See <https://bugs.gnu.org/35785>.
** Strings, i18n: Limit the use of alloca to approximately 8 kilobytes.
Previously, 'string-locale-ci=?', 'string-locale-ci<?',
'string-locale<?', 'string-locale-{downcase,upcase,titlecase}' and
'string-normalize-{nfd,nfc,nfkd,nfkc}' would overflow the C stack when
applied to very large strings.
** Fix documentation of R6RS 'binary-port?' to reflect reality.
Previously, the documentation incorrectly stated that 'binary-port?'
always returns #t.
** Avoid passing NULL to 'memcpy' and 'memcmp'.
** scm_to_stringn: Avoid passing NULL to c_strcasecmp.
Previously, NULL was sometimes passed to 'memcpy' or 'memcmp' when the
size argument was 0.
** Save and restore errno in the signal handler.
** scm_to_stringn: Avoid passing NULL to c_strcasecmp.
** r6rs-ports: Accept 'port-position' values greater than 2^32.
** r6rs-ports: 'put-bytevector' accepts 64-bit integers.
** Fix documentation of R6RS 'binary-port?' to reflect reality.
** Fix R6RS call-with-{input,output}-file to open textual ports.
** Update (ice-9 match) to include selected bug fixes from upstream.
** open-process: Fix dup(2) and execvp(2) error handling.