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author | Andrew Hsieh <andrewhsieh@google.com> | 2012-11-08 09:43:39 -0800 |
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committer | Andrew Hsieh <andrewhsieh@google.com> | 2012-11-08 09:43:39 -0800 |
commit | 3c56f697e112c79fb5457538fdc373e348beca24 (patch) | |
tree | 91987aa2182421ebead7f3bc3e14ae0effd4ba88 /gcc-4.2.1-5666.3/libiberty/ffs.c | |
parent | 8add91f46171be1526e9b37fffcdb7683ad27d77 (diff) | |
download | toolchain_gcc-3c56f697e112c79fb5457538fdc373e348beca24.tar.gz toolchain_gcc-3c56f697e112c79fb5457538fdc373e348beca24.tar.bz2 toolchain_gcc-3c56f697e112c79fb5457538fdc373e348beca24.zip |
Initial checkin of unmodified gcc-5666.3.tar.gz
This is the source to build gcc-4.2 for MacOSX
gcc version 4.2.1 (Apple Inc. build 5666) (dot 3)
http://opensource.apple.com/tarballs/gcc/gcc-5666.3.tar.gz
Change-Id: I69540223f018e9d07f861fca04bd3833fc138f8b
Diffstat (limited to 'gcc-4.2.1-5666.3/libiberty/ffs.c')
-rw-r--r-- | gcc-4.2.1-5666.3/libiberty/ffs.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/gcc-4.2.1-5666.3/libiberty/ffs.c b/gcc-4.2.1-5666.3/libiberty/ffs.c new file mode 100644 index 000000000..603cbe8ed --- /dev/null +++ b/gcc-4.2.1-5666.3/libiberty/ffs.c @@ -0,0 +1,26 @@ +/* ffs -- Find the first bit set in the parameter + +@deftypefn Supplemental int ffs (int @var{valu}) + +Find the first (least significant) bit set in @var{valu}. Bits are +numbered from right to left, starting with bit 1 (corresponding to the +value 1). If @var{valu} is zero, zero is returned. + +@end deftypefn + +*/ + +int +ffs (register int valu) +{ + register int bit; + + if (valu == 0) + return 0; + + for (bit = 1; !(valu & 1); bit++) + valu >>= 1; + + return bit; +} + |