https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96387
cents2823 at yahoo dot co.jp changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |UNCONFIRMED
Resolution|INVALID |---
--- Comment #2 from cents2823 at yahoo dot co.jp ---
I was recompiling all of the gmp-6.2.0 software to use the new struct by
configure, make, make check,and make install.
I want to calculate π 40 billion digits or more by gmp.
The high-speed π parallel calculation program I created requires a large amount
of memory and cannot be used on the current PC, but will be calculated on the
next new PC.
Even on the current PC, I changed the gmp API and was able to calculate route 2
with 77 billion digits. The calculation result was calculated by y-cruncer and
collated.
Therefore, the changed gmp API can be used.
However, it is necessary to partially change the gmp program with another
struct (__mpf_struct).
So I would like to know why changing gmp struct causes g++ to make an error.
Thanking you in advance.
Frome:Tsukamoto
#1 Sources unrelated to gmp:
float y = 0.1;
printf("\ny= %5.2f",y);
g++ error message:
printf float %f become this error mesege but %d etc is OK
during GIMPLE pass: printf-return-value
test_g++.c: In function ‘int main()’:
test_g++.c:4:5: internal compiler error: Segmentation fault
4 | int main(void) {
| ^~~~
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-9/README.Bugs> for instructions.
If I comment out "printf("\ny= %5.2f",y);", the above g++ error message
will disappear.
