AppleClang's libc++ does not support std::from_chars for floating-point
types. Add a compile-time detection macro (CHAISCRIPT_HAS_FLOAT_FROM_CHARS)
and fall back to strtod/strtof/strtold on libc++ platforms. Centralize the
fallback in parse_num and route bootstrap.hpp and json.hpp through it to
keep the workaround in one place.
Requested by @lefticus in PR #669 review.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- buildInt: parse once as unsigned long long (input is never negative),
strip suffixes with remove_suffix, eliminate two-pass fallback path
- json.hpp parse_number: scan number boundaries in-place, call from_chars
directly on the string range — no intermediate strings or std::pow
- parse_num: remove dead integral overload, collapse to single template
- Remove unused <cmath> includes from both files
Requested by @lefticus in PR #669 review.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
The custom parse_num floating-point implementation produced slightly
different results from the C++ compiler's own literal parsing (e.g.
1.1e-4 was off by a few ULPs). Replace it with std::from_chars which
is locale-independent and matches compiler precision exactly. Also
migrate integer parsing in buildInt from std::stoll/stoull to
std::from_chars, fix the JSON number parser to pass the full numeric
string to from_chars instead of splitting mantissa/exponent and using
std::pow, and update parse_string to use from_chars for arithmetic types.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* Fix#146: Add configuration options to selectively disable built-in functions
Add new Options enum values (No_Stdlib, No_IO, No_Prelude, No_JSON) that
allow users to control which parts of the standard library are registered.
Std_Lib::library() now accepts an options vector, and the ChaiScript
convenience class forwards its options to the library builder. This enables
use cases where only custom functions should be exposed to script users.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* Address review: split Options into Options and Library_Options enums
Separate system-level options (No_Load_Modules, Load_Modules, No_External_Scripts,
External_Scripts) from library-level options (No_Stdlib, No_IO, No_Prelude, No_JSON)
into two distinct enum types. Add Library_Options as a parameter to the ChaiScript
constructor. Update tests to demonstrate both ChaiScript_Basic (explicit Std_Lib::library
call) and ChaiScript (library options via constructor parameter) usage.
Requested by @lefticus in PR #642 review.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* Add cheatsheet documentation for Options and Library_Options
Documents the two-enum configuration system: Options (engine-level:
load_module, use, eval_file) and Library_Options (stdlib-level:
No_Stdlib, No_IO, No_Prelude, No_JSON), with usage examples for
both ChaiScript and ChaiScript_Basic constructors.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: leftibot <leftibot@users.noreply.github.com>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
I initially tried to use the existing .clang-format file,
but it does not match the code style (at least with clang-format 11)
and the formatting is not consistent across files.
Therefore, I decided to rewrite the .clang-format with some personal
preferences.
Used command
find . -iname "*.hpp" -o -iname "*.cpp" | xargs clang-format -i -style=file
This modifies no logic, it simply adds the keyword `noexcept`
I believe this is 100% correct. It calls methods that are not
guaranteed to be `noexcept`, such as `operator[]` but have
no logically way of throwing.
This fixes CHAISCRIPT_COMPILER_VERSION, so it gets the compiler version number instead of the string "_MSC_FULL_VER".
This means, for example, build ids read like msvc-190023918-Debug, not msvc-_MSC_FULL_VER-Debug.
