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Last change
on this file since 251 was
163,
checked in by navarro, 18 years ago
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header improvements : type of parameters and keywords, default values, spell checking + idldoc assistant (IDL online_help)
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-
Property svn:keywords set to
Id
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File size:
539 bytes
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| 1 | ;+ |
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| 2 | ; @file_comments |
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| 3 | ; |
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| 4 | ; |
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| 5 | ; @categories |
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| 6 | ; |
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| 7 | ; |
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| 8 | ; @param BITIN |
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| 9 | ; |
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| 10 | ; |
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| 11 | ; @keyword CHECKNEG |
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| 12 | ; |
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| 13 | ; |
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| 14 | ; @returns |
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| 15 | ; |
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| 16 | ; |
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| 17 | ; @uses |
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| 18 | ; |
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| 19 | ; |
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| 20 | ; @restrictions |
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| 21 | ; |
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| 22 | ; |
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| 23 | ; @examples |
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| 24 | ; |
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| 25 | ; |
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| 26 | ; @history |
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| 27 | ; |
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| 28 | ; |
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| 29 | ; @version |
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| 30 | ; $Id$ |
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| 31 | ; |
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| 32 | ; @todo |
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| 33 | ; seb |
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| 34 | ; |
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| 35 | ;- |
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| 36 | FUNCTION bit2int, bitin, checkneg = checkneg |
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| 37 | ; |
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| 38 | compile_opt idl2, strictarrsubs |
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| 39 | ; |
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| 40 | |
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| 41 | res = 0L |
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| 42 | n = n_elements(bitin)-1 |
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| 43 | IF keyword_set(checkneg) THEN BEGIN |
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| 44 | IF bitin[0] EQ 1 THEN BEGIN |
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| 45 | bitin[0] = 0 |
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| 46 | neg = -1 |
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| 47 | ENDIF ELSE neg = 1 |
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| 48 | ENDIF ELSE neg = 1 |
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| 49 | FOR i = 0, n DO res = res+2L^i*bitin[n-i] |
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| 50 | |
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| 51 | RETURN, neg*res |
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| 52 | END |
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