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1 | #include "madx.h" |
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2 | |
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3 | double |
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4 | mult_par(const char* par, struct element* el) |
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5 | /* returns multipole parameter for par = "k0l" or "k0sl" etc. */ |
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6 | { |
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7 | double val = zero; |
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8 | char tmp[12] ,*p; |
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9 | strcpy(tmp, par); |
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10 | if (*tmp == 'k' && (p = strchr(tmp, 'l')) != NULL) |
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11 | { |
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12 | *p = '\0'; /* suppress trailing l */ |
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13 | int skew = 0; |
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14 | if ((p = strchr(tmp, 's')) != NULL) |
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15 | { |
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16 | skew = 1; *p = '\0'; |
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17 | } |
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18 | int k = 0; |
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19 | sscanf(&tmp[1], "%d", &k); |
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20 | double vect[FIELD_MAX]; |
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21 | int l; |
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22 | if (skew) l = element_vector(el, "ksl", vect); |
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23 | else l = element_vector(el, "knl", vect); |
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24 | if (k < l) val = vect[k]; |
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25 | } |
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26 | return val; |
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27 | } |
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28 | |
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29 | |
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