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Last change
on this file since 157 was
150,
checked in by navarro, 18 years ago
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english and nicer header (3a)
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-
Property svn:keywords set to
Id
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File size:
361 bytes
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| Line | |
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| 1 | ;+ |
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| 2 | ; |
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| 3 | ; @todo |
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| 4 | ; seb |
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| 5 | ; |
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| 6 | ;- |
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| 7 | FUNCTION bit2int, bitin, checkneg = checkneg |
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| 8 | ; |
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| 9 | compile_opt idl2, strictarrsubs |
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| 10 | ; |
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| 11 | |
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| 12 | res = 0L |
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| 13 | n = n_elements(bitin)-1 |
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| 14 | IF keyword_set(checkneg) THEN BEGIN |
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| 15 | IF bitin[0] EQ 1 THEN BEGIN |
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| 16 | bitin[0] = 0 |
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| 17 | neg = -1 |
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| 18 | ENDIF ELSE neg = 1 |
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| 19 | ENDIF ELSE neg = 1 |
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| 20 | FOR i = 0, n DO res = res+2L^i*bitin[n-i] |
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| 21 | |
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| 22 | RETURN, neg*res |
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| 23 | END |
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