158 lines
2.4 KiB
Text
158 lines
2.4 KiB
Text
declare -i iv jv
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iv=$(( 3 + 5 * 32 ))
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echo $iv
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iv=iv+3
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echo $iv
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iv=2
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jv=iv
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let "jv *= 2"
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echo $jv
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jv=$(( $jv << 2 ))
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echo $jv
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let jv="$jv / 2"
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echo $jv
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jv="jv >> 2"
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echo $jv
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iv=$((iv+ $jv))
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echo $iv
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echo $((iv -= jv))
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echo $iv
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echo $(( iv == jv ))
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echo $(( iv != $jv ))
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echo $(( iv < jv ))
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echo $(( $iv > $jv ))
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echo $(( iv <= $jv ))
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echo $(( $iv >= jv ))
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echo $jv
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echo $(( ~$jv ))
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echo $(( ~1 ))
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echo $(( ! 0 ))
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echo $(( jv % 2 ))
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echo $(( $iv % 4 ))
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echo $(( iv <<= 16 ))
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echo $(( iv %= 33 ))
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echo $(( 33 & 55 ))
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echo $(( 33 | 17 ))
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echo $(( iv && $jv ))
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echo $(( $iv || jv ))
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echo $(( iv && 0 ))
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echo $(( iv & 0 ))
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echo $(( iv && 1 ))
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echo $(( iv & 1 ))
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echo $(( $jv || 0 ))
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echo $(( jv | 0 ))
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echo $(( jv | 1 ))
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echo $(( $jv || 1 ))
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let 'iv *= jv'
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echo $iv
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echo $jv
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let "jv += $iv"
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echo $jv
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echo $(( jv /= iv ))
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echo $(( jv <<= 8 ))
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echo $(( jv >>= 4 ))
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echo $(( iv |= 4 ))
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echo $(( iv &= 4 ))
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echo $(( iv += (jv + 9)))
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echo $(( (iv + 4) % 7 ))
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# unary plus, minus
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echo $(( +4 - 8 ))
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echo $(( -4 + 8 ))
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# conditional expressions
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echo $(( 4<5 ? 1 : 32))
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echo $(( 4>5 ? 1 : 32))
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echo $(( 4>(2+3) ? 1 : 32))
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echo $(( 4<(2+3) ? 1 : 32))
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echo $(( (2+2)<(2+3) ? 1 : 32))
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echo $(( (2+2)>(2+3) ? 1 : 32))
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# check that the unevaluated part of the ternary operator does not do
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# evaluation or assignment
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x=i+=2
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y=j+=2
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declare -i i=1 j=1
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echo $((1 ? 20 : (x+=2)))
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echo $i,$x
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echo $((0 ? (y+=2) : 30))
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echo $j,$y
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x=i+=2
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y=j+=2
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declare -i i=1 j=1
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echo $((1 ? 20 : (x+=2)))
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echo $i,$x
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echo $((0 ? (y+=2) : 30))
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echo $i,$y
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# check precedence of assignment vs. conditional operator
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# should be an error
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declare -i x=2
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y=$((1 ? 20 : x+=2))
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# check precedence of assignment vs. conditional operator
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declare -i x=2
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echo $((0 ? x+=2 : 20))
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# associativity of assignment-operator operator
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declare -i i=1 j=2 k=3
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echo $((i += j += k))
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echo $i,$j,$k
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# octal, hex
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echo $(( 0x100 | 007 ))
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echo $(( 0xff ))
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echo $(( 16#ff ))
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echo $(( 16#FF/2 ))
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echo $(( 8#44 ))
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echo $(( 8 ^ 32 ))
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# other bases
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echo $(( 16#a ))
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echo $(( 32#a ))
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echo $(( 56#a ))
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echo $(( 64#a ))
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echo $(( 16#A ))
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echo $(( 32#A ))
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echo $(( 56#A ))
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echo $(( 64#A ))
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echo $(( 64#_ ))
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echo $(( 64#@ ))
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# weird bases
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echo $(( 3425#56 ))
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# missing number after base
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echo $(( 2# ))
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# these should generate errors
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echo $(( 7 = 43 ))
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echo $(( 2#44 ))
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echo $(( 44 / 0 ))
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let 'jv += $iv'
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echo $(( jv += \$iv ))
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let 'rv = 7 + (43 * 6'
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# more errors
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declare -i i
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i=0#4
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i=2#110#11
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