Merge pull request #79 from 'murisi/guarantee-value-sum' #511

Job	Run time
Build target wasm32-unknown-unknown	45s
Build target wasm32-wasi	41s
Bitrot check	1m 2s
Lint	45s
Nightly lint	12s
Intra-doc links	1m 16s
Rustfmt	13s
Security - Cargo Audit	3m 12s
Test on ubuntu-latest	3m 10s
Test on windows-latest	6m 40s
Test on macOS-latest	2m 47s
	20m 43s

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