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113 lines
4.8 KiB

Reverts this commit in the cln repo:
commit 2f7994014542920ad6ca726fbd8d023a5f49abc2
Author: Richard Kreckel <kreckel@ginac.de>
Date: Sun Oct 27 14:57:36 2019 +0100
Replace typedef int[<negative>] trick with static_assert.
diff -u -r ../src/m4/floatparam.m4 ./m4/floatparam.m4
--- ../src/m4/floatparam.m4 2019-10-27 14:41:55.000000000 +0100
+++ ./m4/floatparam.m4 2019-11-28 08:21:28.161830204 +0100
@@ -22,16 +22,20 @@
epsilon_bits=-1; y="($type)1.0"
while true; do
AC_TRY_COMPILE([],
- [static_assert((($type)(($type)1.0 + ($type)($y)) == ($type)1.0)
- || ($type)(($type)(($type)1.0 + ($type)($y)) - ($type)1.0) != ($type)($y), "");],
+ [typedef int verify[2*(
+ (($type)(($type)1.0 + ($type)($y)) == ($type)1.0)
+ || ($type)(($type)(($type)1.0 + ($type)($y)) - ($type)1.0) != ($type)($y)
+ ) - 1];],
[break;])
epsilon_bits=`expr $epsilon_bits + 1`; y="$y * ($type)0.5"
done
negepsilon_bits=-1; y="($type)-1.0"
while true; do
AC_TRY_COMPILE([],
- [static_assert((($type)(($type)1.0 + ($type)($y)) == ($type)1.0)
- || ($type)(($type)(($type)1.0 + ($type)($y)) - ($type)1.0) != ($type)($y), "");],
+ [typedef int verify[2*(
+ (($type)(($type)1.0 + ($type)($y)) == ($type)1.0)
+ || ($type)(($type)(($type)1.0 + ($type)($y)) - ($type)1.0) != ($type)($y)
+ ) - 1];],
[break;])
negepsilon_bits=`expr $negepsilon_bits + 1`; y="$y * ($type)0.5"
done
@@ -64,22 +68,30 @@
rounds=
if test -z "$rounds"; then
AC_TRY_COMPILE([],
- [static_assert($ys1 == $y1 && $ys2 == $y2 && $zs1 == $z1 && $zs2 == $z2, "");],
+ [typedef int verify[2*(
+ $ys1 == $y1 && $ys2 == $y2 && $zs1 == $z1 && $zs2 == $z2
+ ) - 1];],
[rounds=rounds_to_nearest])
fi
if test -z "$rounds"; then
AC_TRY_COMPILE([],
- [static_assert($ys1 == $y1 && $ys2 == $y1 && $zs1 == $z1 && $zs2 == $z1, "");],
+ [typedef int verify[2*(
+ $ys1 == $y1 && $ys2 == $y1 && $zs1 == $z1 && $zs2 == $z1
+ ) - 1];],
[rounds=rounds_to_zero])
fi
if test -z "$rounds"; then
AC_TRY_COMPILE([],
- [static_assert($ys1 == $y2 && $ys2 == $y2 && $zs1 == $z1 && $zs2 == $z1, "");],
+ [typedef int verify[2*(
+ $ys1 == $y2 && $ys2 == $y2 && $zs1 == $z1 && $zs2 == $z1
+ ) - 1];],
[rounds=rounds_to_infinity])
fi
if test -z "$rounds"; then
AC_TRY_COMPILE([],
- [static_assert($ys1 == $y1 && $ys2 == $y1 && $zs1 == $z2 && $zs2 == $z2, "");],
+ [typedef int verify[2*(
+ $ys1 == $y1 && $ys2 == $y1 && $zs1 == $z2 && $zs2 == $z2
+ ) - 1];],
[rounds=rounds_to_minus_infinity])
fi
if test -n "$rounds"; then
diff -u -r ../src/m4/intparam.m4 ./m4/intparam.m4
--- ../src/m4/intparam.m4 2019-11-02 17:04:20.000000000 +0100
+++ ./m4/intparam.m4 2019-11-28 08:21:28.161830204 +0100
@@ -113,7 +113,7 @@
echo "#error \"Integer types long long and unsigned long long have different sizes!!\""
fi
fi
- AC_TRY_COMPILE([], [static_assert(sizeof(char*) <= sizeof(intptr_t), "");],
+ AC_TRY_COMPILE([], [typedef int verify[2*(sizeof(char*)<=sizeof (long))-1];],
[], [echo "#error \"Type char * does not fit into an intptr_t!!\""])
_AC_COMPUTE_INT([sizeof (char *)], [pointer_size])
pointer_bitsize=`expr $pointer_size '*' $char_bitsize`
@@ -258,7 +258,7 @@
[
n=1; x="($1)2"
while true; do
- AC_TRY_COMPILE([], [static_assert(($1)($x) == 0, "");],
+ AC_TRY_COMPILE([], [typedef int verify[2*(($1)($x) == 0) - 1];],
[$2=$n; break;],
[if test $n = 1000; then $2=; break; fi;])
n=`expr $n + 1`; x="$x * ($1)2"
@@ -290,7 +290,7 @@
#else
# define alignof(type) offsetof (struct { char slot1; type slot2; }, slot2)
#endif
-], [static_assert(alignof($1) == $n, "");],
+], [typedef int verify[2*(alignof($1) == $n) - 1];],
[$2=$n; break;]
[if test $n = 0; then $2=; break; fi])
n=`expr $n '*' 2`
--- ../src/include/cln/number.h 2019-10-27 14:29:45.000000000 +0100
+++ ./include/cln/number.h 2019-11-28 08:21:28.161830204 +0100
@@ -257,8 +257,7 @@
inline const type& the(const cl_number& x)
{
// check that sizeof(type)==sizeof(cl_number)
- static_assert(sizeof(type)==sizeof(cl_number),
- "sizeof(type)!=sizeof(cl_number)");
+ int (*dummy1)(int assertion1 [1 - 2 * (sizeof(type) != sizeof(cl_number))]); (void)dummy1;
return *(const type *) &x;
}
// Conversions to subtypes without checking, macro version: