4802d158ef
expansion. The comma operator is not listed in POSIX.1-2008 XCU 1.1.2.1 Arithmetic Precision and Operations (referenced by XCU 2.6.4 Arithmetic Expansion) and is therefore not required.
78 lines
1.3 KiB
Plaintext
78 lines
1.3 KiB
Plaintext
# $FreeBSD$
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failures=0
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check() {
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if [ $(($1)) != $2 ]; then
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failures=$((failures+1))
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echo "For $1, expected $2 actual $(($1))"
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fi
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}
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# variables
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unset v
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check "v=2" 2
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check "v" 2
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check "$(($v))" 2
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check "v+=1" 3
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check "v" 3
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# constants
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check "4611686018427387904" 4611686018427387904
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check "0x4000000000000000" 4611686018427387904
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check "0400000000000000000000" 4611686018427387904
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check "0x4Ab0000000000000" 5381801554707742720
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check "010" 8
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# try out all operators
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v=42
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check "!v" 0
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check "!!v" 1
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check "!0" 1
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check "~0" -1
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check "~(-1)" 0
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check "-0" 0
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check "-v" -42
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check "v*v" 1764
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check "v/2" 21
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check "v%10" 2
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check "v+v" 84
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check "v-4" 38
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check "v<<1" 84
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check "v>>1" 21
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check "v<43" 1
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check "v>42" 0
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check "v<=43" 1
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check "v>=43" 0
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check "v==41" 0
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check "v!=42" 0
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check "v&3" 2
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check "v^3" 41
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check "v|3" 43
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check "v>=40&&v<=44" 1
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check "v<40||v>44" 0
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check "(v=42)&&(v+=1)==43" 1
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check "v" 43
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check "(v=42)&&(v-=1)==41" 1
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check "v" 41
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check "(v=42)&&(v*=2)==84" 1
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check "v" 84
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check "(v=42)&&(v/=10)==4" 1
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check "v" 4
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check "(v=42)&&(v%=10)==2" 1
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check "v" 2
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check "(v=42)&&(v<<=1)==84" 1
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check "v" 84
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check "(v=42)&&(v>>=2)==10" 1
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check "v" 10
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check "(v=42)&&(v&=32)==32" 1
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check "v" 32
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check "(v=42)&&(v^=32)==10" 1
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check "v" 10
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check "(v=42)&&(v|=32)==42" 1
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check "v" 42
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# missing: ternary
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exit $((failures != 0))
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