# | Line 344 | Line 344 | VARDEF *vp; | |
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344 | lasterrno = errno; | |
345 | errno = 0; | |
346 | d = (*lp->f)(lp->fname); | |
347 | < | #ifdef IEEE |
347 | > | #ifdef isnan |
348 | if (errno == 0) | |
349 | if (isnan(d)) | |
350 | errno = EDOM; |
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