created use of 'alloc' local variable to track when an allocation occurred
so exit path logic is more straight forward for compiler/analyser to see
potential optimisations.
no attempt to free memory was made previously
FUN2CD() on a function pointer still raises -Wpedantic warning due to the
officially undefined behaviour as defined by C standards.
So added FUN2CD() and CD2FUN() to at least mark the call-sites to help
with identification and ignoring -Wpedantic based on the source file
context given in the compiler output.
Due to use of strcasecmp() or similar C API.
Maybe HAVE_STRINGS_H is needed ? If so which platforms needs this ?
clang18 default warning cleanup (strict)
This commit makes the code (mostly) C99-compatible, enabling to compile
it without the -Wno-error=implicit-function-declaration flag. This
way, Magic becomes usable on arm64 architectures, specifically on Apple
computers with M1/M2 SoC.
The previous behavior was to generate hierarchical names for all
labels when copying contents of subcells. This is "safe" for
copying selections without accidentally shorting things through
labeling, but it can make a mess of the selection. Options are
now "select do labels" for the existing behavior, "select no labels"
to not show any labels, and "select simple labels" to show only the
root name of labels in subcells.
not copy labels; not copying labels speeds up the antenna checks
(which don't need labels) greatly. Also fixed several numerical
overflow problems in the antenna checks, which resulted in false
positive errors, as well as nonsensical results.
Darryl L. Miles
Alessandro De Laurenzis
Tim Edwards