| 1 | #To: bug-gnu-utils@gnu.org
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| 2 | #From: Kristján Jónasson <kristjan@decode.is>
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| 3 | #Subject: Gawk bug
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| 4 | #Cc: arnold@gnu.org
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| 5 | #
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| 6 | #Hi!
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| 7 | #
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| 8 | #The following seems to be a bug in gawk. I have tried as I could to
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| 9 | #minimize the bug-causing program, so of course it does not seem to do
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| 10 | #anything useful in its present form. The error message received is:
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| 11 | #
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| 12 | #gawk: test.awk:15: fatal error: internal error
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| 13 | #Aborted
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| 14 | #
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| 15 | #Note that there is an attached file that the program reads, called "a". I
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| 16 | #played with the program a fair bit and my feeling is that the error is
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| 17 | #related with the delete statement, and not the reading of the file and the
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| 18 | #close statement. At one point I was able to remove the file reading and
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| 19 | #still obtain the error. If, for example, I remove the close statement and
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| 20 | #make two copies of the file instead, (reading one copy in sub1 and the
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| 21 | #other in sub2), the error still occurs.
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| 22 | #
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| 23 | #The operating system is Red Hat Linux, version 6.0, the gawk is version
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| 24 | #3.0.4, and the gawk was obtained from an rpm file gawk-3.0.4-1.i386.rpm.
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| 25 | #
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| 26 | #The program is:
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| 27 | #
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| 28 |
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| 29 | # Wed Mar 8 13:41:34 IST 2000
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| 30 | # ADR: modified to use INPUT, so can set it from command line.
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| 31 | # When run, no output is produced, but it shouldn't core
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| 32 | # dump, either.
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| 33 | #
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| 34 | # The program bug is to not close the file in sub2.
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| 35 |
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| 36 | function sub1(x) {
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| 37 | # while (getline < "a" == 1) i++
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| 38 | while (getline < INPUT == 1) i++
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| 39 | # close("a")
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| 40 | close(INPUT)
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| 41 | }
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| 42 |
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| 43 | function sub2(x) {
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| 44 | i=0
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| 45 | delete y
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| 46 | # while (getline < "a" == 1) z[++i] = $1
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| 47 | while (getline < INPUT == 1) z[++i] = $1
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| 48 | for(i in z) y[i] = x[i] + z[i]
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| 49 | }
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| 50 |
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| 51 | function sub3(x, y, z) {
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| 52 | sub2(x)
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| 53 | for(i=1; i<=4; i++) z[i] = y[i]
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| 54 | }
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| 55 |
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| 56 | BEGIN {
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| 57 | sub1(x)
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| 58 | sub2(x)
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| 59 | sub3(x, y, z)
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| 60 | }
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| 61 | #
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| 62 | #And the data file is:
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| 63 | #
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| 64 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 65 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 66 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 67 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 68 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 69 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 70 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 71 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 72 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 73 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 74 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 75 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 76 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 77 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 78 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 79 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 80 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 81 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 82 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 83 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 84 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 85 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 86 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 87 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 88 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 89 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 90 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 91 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 92 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 93 | # 32.440 3.830 3.383700000000000 10.08 298 865
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| 94 | #
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| 95 | #
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