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Add 64-bit integer utilities

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Greg Maxwell
2015-08-05 16:17:50 +02:00
committed by Pieter Wuille
parent 119949232a
commit f7b48c577d
5 changed files with 103 additions and 3 deletions
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6
configure.ac
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@@ -195,6 +195,12 @@ else
set_precomp=no
fi
AC_MSG_CHECKING([for __builtin_clzll])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[void myfunc() { __builtin_clzll(1);}]])],
[ AC_MSG_RESULT([yes]);AC_DEFINE(HAVE_BUILTIN_CLZLL,1,[Define this symbol if __builtin_clzll is available]) ],
[ AC_MSG_RESULT([no])
])
if test x"$req_asm" = x"auto"; then
SECP_64BIT_ASM_CHECK
if test x"$has_64bit_asm" = x"yes"; then