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doc: document the -no-bounds-checking option in v help build

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Delyan Angelov 2022-10-30 15:05:02 +02:00
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cmd/v/help/build.txt
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@ -75,6 +75,12 @@ NB: the build flags are shared with the run command too:
Compile the executable in production mode, where most optimizations are enabled.
Note that most V warnings turn to errors, if you pass -prod, so you will have
to fix them first.
-no-bounds-checking
Programs compiled with this option, will do no runtime checking of array access operations.
Note that the performance impact of the bounds checking is usually below 3%, so in most
cases, it is preferable to not turn it off, than disable it, and have a program that may
do out of bounds accesses.
-prof, -profile <file.txt>
Compile the executable with all functions profiled.