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278 Commits

Author SHA1 Message Date
Roberto Ierusalimschy 3da34a5fa7 Revamp of 'lua_pushfstring' / 'luaO_pushvfstring' 
The function 'luaO_pushvfstring' now uses an internal buffer to
concatenate small strings, instead of pushing all pieces on the
stack. This avoids the creation of several small Lua strings for each
piece of the result. (For instance, a format like "n: '%d'" used to
create three intermediate strings: "n: '", the numeral, and "'".
Now it creates none.)
 2019-04-24 14:01:20 -03:00
Roberto Ierusalimschy 2d3f095448 Avoid using large buffers in 'string.format' 
The result of "string.format("%.99f", -1e308) is 410 characters long,
but all other formats have much smaller limits (at most 99 plus a fex
extras). This commit avoids 'string.format' asking for a buffer
~400 chars large when ~100 will do.
 2019-04-12 11:48:24 -03:00
Roberto Ierusalimschy 0443ad9e28 LUAI_MAXCCALLS renamed LUAI_MAXCSTACK 
The limit LUAI_MAXCCALLS was renamed LUAI_MAXCSTACK, which better
represents its meaning. Moreover, its definition was moved to
'luaconf.h', given its importance now that Lua does not use
a "stackless" implementation.
 2019-03-25 14:12:06 -03:00
Roberto Ierusalimschy ba7da13ec5 Changes in the control of C-stack overflow 
* unification of the 'nny' and 'nCcalls' counters;
  * external C functions ('lua_CFunction') count more "slots" in
    the C stack (to allow for their possible use of buffers)
  * added a new test script specific for C-stack overflows. (Most
    of those tests were already present, but concentrating them
    in a single script easies the task of checking whether
    'LUAI_MAXCCALLS' is adequate in a system.)
 2018-12-27 14:32:29 -02:00
Roberto Ierusalimschy d40cd315f5 Visibility of non-API functions changed to "internal" 
The visibility for functions marked as LUAI_FUNC was changed from
"hidden" to "internal". These functions cannot be called from
outside the Lua kernel, and "internal" visibility offers more
chances for optimizations.
 2018-11-13 13:58:46 -02:00
Roberto Ierusalimschy 8c8a91f2ef Deprecated the emulation of '__le' using '__lt' 
As hinted in the manual for Lua 5.3, the emulation of the metamethod
for '__le' using '__le' has been deprecated. It is slow, complicates
the logic, and it is easy to avoid this emulation by defining a proper
'__le' function.

Moreover, often this emulation was used wrongly, with a programmer
assuming that an order is total when it is not (e.g., NaN in
floating-point numbers).
 2018-08-24 10:17:54 -03:00
Roberto Ierusalimschy f99509581e Removed extra information from RCS keyword strings 
Version numbers and dates (mostly wrong) from RCS keyword strings
removed from all source files; only the file name are kept.
 2018-08-23 14:26:12 -03:00
Roberto Ierusalimschy f59e6a93c0 opening functions must be exported! 2018-06-19 16:23:57 -03:00
Roberto Ierusalimschy b43300c14f change in 'LUAI_DDEC' to allow variables to be static in 'onelua' 
+ change in 'LUAMOD_API' as opening functions do not need to be global
 2018-06-18 09:51:05 -03:00
Roberto Ierusalimschy b6780ee41b detail (removed unused definition for 'LUA_QS') 2018-06-15 12:49:28 -03:00
Roberto Ierusalimschy 8d50a998e3 definition for LUA_UNSIGNEDBITS (number of bits in a LUA_UNSIGNED) 2018-04-02 10:58:33 -03:00
Roberto Ierusalimschy 40683b4934 added definition for LUA_MAXUNSIGNED 2018-03-09 11:56:02 -03:00
Roberto Ierusalimschy 0eb10c6303 'LUA_USE_READLINE' moved to the make file 2018-03-02 15:31:51 -03:00
Roberto Ierusalimschy 34b00c16e2 removed compatibility code with older versions 2018-02-27 15:47:32 -03:00
Roberto Ierusalimschy 6353d619a5 detail (comment) 2018-02-20 17:52:50 -03:00
Roberto Ierusalimschy a9295a2b8e typos in comments 2017-12-30 18:46:18 -02:00
Roberto Ierusalimschy 46bc7f2bf7 detail (comment) 2017-12-07 16:53:33 -02:00
Roberto Ierusalimschy 2caecf1b3e type 'L_Umaxalign' replaced by macro 'LUAI_MAXALIGN', which is also added 
to the auxlib buffer
 2017-04-24 15:06:12 -03:00
Roberto Ierusalimschy a45945b6d5 new macro 'lua_pointer2str' to encapsulate use of 'l_sprintf' inside 
the kernel
 2017-04-19 13:34:35 -03:00
Roberto Ierusalimschy 2a235312f0 detail (removing spaces at end of lines) 2016-12-22 11:08:50 -02:00
Roberto Ierusalimschy 9903dd52a3 Using LUAI_UAC* types more consistently on vararg calls 2016-12-20 16:37:00 -02:00
Roberto Ierusalimschy 349badabc1 wrong test in '#if' for floating-point type 2016-08-22 14:21:12 -03:00
Roberto Ierusalimschy de3fd8ab83 Handling of LUA_PATH/LUA_CPATH moved from package library to stand 
alone interpreter (so that 'lua.c' concentrates all handling of
environment variables)
 2016-07-18 14:55:59 -03:00
Roberto Ierusalimschy 792ffaccf2 detail (macro should "use" all its arguments) 2016-05-01 17:06:09 -03:00
Roberto Ierusalimschy 48098c42ff generic definitions for float types moved to before variable definitions 
(so that specific cases can redefine these generic definitions if
needed)
 2015-10-21 16:17:40 -02:00
Roberto Ierusalimschy cb1e451999 detail 2015-06-24 15:23:57 -03:00
Roberto Ierusalimschy 19eb6ae580 using 'snprintf' in C99 (both for documentation of buffer sizes 
and some complains from tools)
 2015-06-18 11:26:05 -03:00
Roberto Ierusalimschy 99391e24ea new configuration macro 'l_mathlim' (simplifies some dependencies 
on float type)
 2015-05-20 14:39:23 -03:00
Roberto Ierusalimschy 48d0674c2e more consistent use of locale radix character across Lua 2015-04-03 15:41:57 -03:00
Roberto Ierusalimschy cfc84c856d 'LUA_REAL_*' -> 'LUA_FLOAT_*' (everywhere else we are using 'float') 2015-03-31 09:00:07 -03:00
Roberto Ierusalimschy a30c66f0fc macro 'luai_apicheck'/'api_check' back with a 'lua_State' parameter 
(some people use it)
 2015-03-06 16:49:50 -03:00
Roberto Ierusalimschy 951b562cf8 configuration for numerical types through only one #define for 
each type
 2015-03-02 13:59:01 -03:00
Roberto Ierusalimschy 91efb4b895 LUA_COMPAT_5_1 needs some options deprecated from 5.2 to 5.3 2015-02-28 16:22:31 -03:00
Roberto Ierusalimschy c8d6cb0136 macros 'luai_num*' (for float arithmetic operations) moved to 
llimits.h.
 2015-02-05 15:15:33 -02:00
Roberto Ierusalimschy 0edcdf49c0 added comments documenting LUA_NOCVTN2S/LUA_NOCVTS2N 2015-02-05 14:53:34 -02:00
Roberto Ierusalimschy 8efcd411fe own implementation for 'string.format("%a")' for C89 platforms 2015-02-04 10:52:57 -02:00
Roberto Ierusalimschy b3996c55f6 LUAL_BUFFERSIZE affects the API, so it is better not to change it 
between releases of the same version. (The long double case seems
to be too rare, so that should not be a problem; moreover, that
case is related to a bug)
 2015-01-16 15:26:56 -02:00
Roberto Ierusalimschy 438a9fcc78 LUAI_MAXSHORTLEN moved from 'luaconf.h' to 'llimits.h' (does not 
affect the API and is seldom modified)
 2015-01-16 15:15:52 -02:00
Roberto Ierusalimschy 965f74525b removed macro LUAI_FIRSTPSEUDOIDX (that stuff does not need 
to be configurable)
 2015-01-13 17:50:30 -02:00
Roberto Ierusalimschy 3f2e21f0ea Long double needs a larger LUAL_BUFFERSIZE (because 
'string.format("%.99f", 1e4900)' can generate quite long strings),
but otherwise buffer can be 1~2K
 2015-01-13 15:24:22 -02:00
Roberto Ierusalimschy a1c37f834a detail (macro 'luai_numidiv' uses 'luai_numdiv' to compute the division) 2014-12-29 11:27:55 -02:00
Roberto Ierusalimschy a51069202a removed macro 'luai_numinvalidop' (main motivation removed, as folding 
does not handle any division by zero by default)
 2014-12-26 12:44:44 -02:00
Roberto Ierusalimschy 570143bf88 comment 2014-12-19 11:31:12 -02:00
Roberto Ierusalimschy 6d79752e65 Windows uses 'long long' (instead of '__int64') when present; again, 
uses macro LLONG_MAX as a proxy for the support for 'long long'.
 2014-12-16 15:17:30 -02:00
Roberto Ierusalimschy 75812a517b added macro LUA_USE_I64 for separate control of use of Windows-specific 
types
 2014-12-16 14:20:01 -02:00
Roberto Ierusalimschy 0b6cfea005 comments 2014-12-13 15:57:00 -02:00
Roberto Ierusalimschy c96cd1c647 reinsertion-control macro renamed: lconfig_h -> luaconf_h 2014-12-12 09:49:32 -02:00
Roberto Ierusalimschy bd8ce7e331 macro 'LUA_C89_NUMBERS' makes a little easier to use C89 numerical types 2014-12-10 09:56:55 -02:00
Roberto Ierusalimschy ad79eafe86 details (comments) 2014-11-25 16:21:57 -02:00
Roberto Ierusalimschy 049cf14cf9 'x//y' extended to floats + more comments about module and floor 
division operations
 2014-11-21 10:15:00 -02:00