Last change
on this file since 1422 was
1,
checked in by lfita, 10 years ago
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- -- --- Opening of the WRF+LMDZ coupling repository --- -- -
WRF: version v3.3
LMDZ: version v1818
More details in:
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File size:
1.5 KB
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1 | /* Jan. 2005. |
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2 | |
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3 | A utility that converts unformatted binary real data files |
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4 | to unformatted binary double precision data files. |
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5 | |
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6 | Compile as |
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7 | |
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8 | cc -o four2eight four2eight.c |
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9 | |
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10 | If you are running this on a little-endian platform |
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11 | compile with -DSWAP like so: |
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12 | |
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13 | cc -o four2eight -DSWAP four2eight.c |
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14 | |
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15 | Use as |
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16 | |
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17 | four2eight < RRTM_DATA > RRTM_DATA_DBL (for example) |
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18 | |
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19 | JM |
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20 | |
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21 | */ |
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22 | |
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23 | |
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24 | #include <stdio.h> |
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25 | |
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26 | int |
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27 | main() |
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28 | { |
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29 | int in, cr, cr1, n ; |
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30 | int i ; |
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31 | float x, x1 ; |
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32 | double y, y1 ; |
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33 | |
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34 | while ( |
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35 | fread( &in, 1, 4, stdin ) > 0 ) { |
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36 | swap4(&in, &cr) ; |
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37 | n = cr ; |
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38 | cr1 = 2*cr ; |
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39 | fprintf(stderr, "%d > %d\n",cr,cr1) ; |
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40 | swap4(&cr1,&cr) ; |
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41 | fwrite( &cr, 1, 4, stdout ) ; |
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42 | for ( i = 0 ; i < n ; i += 4 ) |
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43 | { |
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44 | fread ( &x, 1, 4, stdin ) ; |
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45 | swap4(&x,&x1) ; |
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46 | y1 = x1 ; |
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47 | swap8(&y1,&y) ; |
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48 | fwrite ( &y, 1, 8, stdout ) ; |
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49 | } |
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50 | fread( &in, 1, 4, stdin ) ; |
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51 | fwrite( &cr, 1, 4, stdout ) ; |
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52 | } |
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53 | fprintf(stderr,"\n") ; |
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54 | } |
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55 | |
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56 | void |
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57 | swap4( a, b ) |
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58 | char a[], b[] ; |
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59 | { |
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60 | #ifdef SWAP |
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61 | b[0] = a[3] ; |
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62 | b[1] = a[2] ; |
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63 | b[2] = a[1] ; |
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64 | b[3] = a[0] ; |
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65 | #else |
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66 | b[0] = a[0] ; |
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67 | b[1] = a[1] ; |
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68 | b[2] = a[2] ; |
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69 | b[3] = a[3] ; |
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70 | #endif |
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71 | } |
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72 | |
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73 | void |
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74 | swap8( a, b ) |
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75 | char a[], b[] ; |
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76 | { |
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77 | #ifdef SWAP |
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78 | b[0] = a[7] ; |
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79 | b[1] = a[6] ; |
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80 | b[2] = a[5] ; |
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81 | b[3] = a[4] ; |
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82 | b[4] = a[3] ; |
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83 | b[5] = a[2] ; |
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84 | b[6] = a[1] ; |
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85 | b[7] = a[0] ; |
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86 | #else |
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87 | b[0] = a[0] ; |
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88 | b[1] = a[1] ; |
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89 | b[2] = a[2] ; |
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90 | b[3] = a[3] ; |
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91 | b[4] = a[4] ; |
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92 | b[5] = a[5] ; |
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93 | b[6] = a[6] ; |
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94 | b[7] = a[7] ; |
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95 | #endif |
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96 | } |
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97 | |
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