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| author | Nicholas Clark <nick@ccl4.org> | 2011-09-09 12:39:13 +0200 |
|---|---|---|
| committer | Nicholas Clark <nick@ccl4.org> | 2011-09-13 11:28:08 +0200 |
| commit | b256643b00db727f2db85a7a7211dc0e9e0bf8d7 (patch) | |
| tree | df4dd2d029d939655acaeed67e1f8bfa90c00763 /ext | |
| parent | 1a77755a54cd3bc9bb415dbea8e75d39cb394968 (diff) | |
| download | perl-b256643b00db727f2db85a7a7211dc0e9e0bf8d7.tar.gz | |
Merge the implementations of 10 maths functions in POSIX using ALIAS.
10 functions take a single NV argument and return an NV result. Merging them
reduces the shared object size by over 2K on this platform. (Argument
marshalling code in XS is not free.)
Diffstat (limited to 'ext')
| -rw-r--r-- | ext/POSIX/POSIX.xs | 80 |
1 files changed, 44 insertions, 36 deletions
diff --git a/ext/POSIX/POSIX.xs b/ext/POSIX/POSIX.xs index 8b1a41b0bc..8151d799ce 100644 --- a/ext/POSIX/POSIX.xs +++ b/ext/POSIX/POSIX.xs @@ -1252,26 +1252,50 @@ setlocale(category, locale = 0) NV acos(x) NV x - -NV -asin(x) - NV x - -NV -atan(x) - NV x - -NV -ceil(x) - NV x - -NV -cosh(x) - NV x - -NV -floor(x) - NV x + ALIAS: + asin = 1 + atan = 2 + ceil = 3 + cosh = 4 + floor = 5 + log10 = 6 + sinh = 7 + tan = 8 + tanh = 9 + CODE: + switch (ix) { + case 0: + RETVAL = acos(x); + break; + case 1: + RETVAL = asin(x); + break; + case 2: + RETVAL = atan(x); + break; + case 3: + RETVAL = ceil(x); + break; + case 4: + RETVAL = cosh(x); + break; + case 5: + RETVAL = floor(x); + break; + case 6: + RETVAL = log10(x); + break; + case 7: + RETVAL = sinh(x); + break; + case 8: + RETVAL = tan(x); + break; + default: + RETVAL = tanh(x); + } + OUTPUT: + RETVAL NV fmod(x,y) @@ -1292,10 +1316,6 @@ ldexp(x,exp) NV x int exp -NV -log10(x) - NV x - void modf(x) NV x @@ -1305,18 +1325,6 @@ modf(x) PUSHs(sv_2mortal(newSVnv(Perl_modf(x,&intvar)))); PUSHs(sv_2mortal(newSVnv(intvar))); -NV -sinh(x) - NV x - -NV -tan(x) - NV x - -NV -tanh(x) - NV x - SysRet sigaction(sig, optaction, oldaction = 0) int sig |