Yegappan wrote:
> I am seeing the following warning messages when building the
> latest Vim (8.2.0324) on MacOS using -Wall:
>
> gcc -c -I. -Iproto -DHAVE_CONFIG_H -DMACOS_X -DMACOS_X_DARWIN -g
> -O0 -Wall -Wextra -pedantic -o objects/vim9execute.o
> vim9execute.c
> vim9execute.c:438:9: warning: variable 'initial_frame_ptr' is used
> uninitialized
> whenever 'if' condition is true [-Wsometimes-uninitialized]
> if (ga_grow(&ectx.ec_stack, 20) == FAIL)
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> vim9execute.c:1640:29: note: uninitialized use occurs here
> while (ectx.ec_frame != initial_frame_ptr)
> ^~~~~~~~~~~~~~~~~
> vim9execute.c:438:5: note: remove the 'if' if its condition is always false
> if (ga_grow(&ectx.ec_stack, 20) == FAIL)
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> vim9execute.c:419:27: note: initialize the variable 'initial_frame_ptr' to
> silence this warning
> int initial_frame_ptr;
> ^
> = 0
It's because of the early jump to "failed". It can just return there.
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