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author | Paul Eggert <eggert@cs.ucla.edu> | 2022-05-10 14:47:09 -0700 |
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committer | Paul Eggert <eggert@cs.ucla.edu> | 2022-05-10 14:47:22 -0700 |
commit | 4433df3b2015b3b1acd9d24bf7169c010fb51a05 (patch) | |
tree | c08beeaa46b83210f2a0d4c89bd62e587cdb82da /src/floatfns.c | |
parent | 203ffc68468abaccfed7e8ee630d9aa143ce5dbf (diff) | |
download | emacs-4433df3b2015b3b1acd9d24bf7169c010fb51a05.tar.gz |
* src/floatfns.c: Update comment.
Diffstat (limited to 'src/floatfns.c')
-rw-r--r-- | src/floatfns.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/src/floatfns.c b/src/floatfns.c index f2b3b13acd8..293184c70f1 100644 --- a/src/floatfns.c +++ b/src/floatfns.c @@ -29,14 +29,20 @@ along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */ C99 and C11 require the following math.h functions in addition to the C89 functions. Of these, Emacs currently exports only the - starred ones to Lisp, since we haven't found a use for the others: - acosh, atanh, cbrt, *copysign, erf, erfc, exp2, expm1, fdim, fma, - fmax, fmin, fpclassify, hypot, ilogb, isfinite, isgreater, - isgreaterequal, isinf, isless, islessequal, islessgreater, *isnan, - isnormal, isunordered, lgamma, log1p, *log2 [via (log X 2)], *logb - (approximately), lrint/llrint, lround/llround, nan, nearbyint, - nextafter, nexttoward, remainder, remquo, *rint, round, scalbln, - scalbn, signbit, tgamma, *trunc. + starred ones to Lisp, since we haven't found a use for the others. + Also, it uses the ones marked "+" internally: + acosh, atanh, cbrt, copysign (implemented by signbit), erf, erfc, + exp2, expm1, fdim, fma, fmax, fmin, fpclassify, hypot, +ilogb, + isfinite, isgreater, isgreaterequal, isinf, isless, islessequal, + islessgreater, *isnan, isnormal, isunordered, lgamma, log1p, *log2 + [via (log X 2)], logb (approximately; implemented by frexp), + +lrint/llrint, +lround/llround, nan, nearbyint, nextafter, + nexttoward, remainder, remquo, *rint, round, scalbln, +scalbn, + +signbit, tgamma, *trunc. + + The C standard also requires functions for float and long double + that are not listed above. Of these functions, Emacs uses only the + following internally: fabsf, powf, sprintf. */ #include <config.h> |