[Bug c/92875] GCC ignores the floating-point 'f' suffix in C11 mode

[joseph at codesourcery dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92875

--- Comment #3 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
The value of FLT_EVAL_METHOD applies to constants as well as to 
operations.  That is, when FLT_EVAL_METHOD == 2, 0.1f has the precision of 
long double but the semantic type of float, and 0.1 has the precision of 
long double but the semantic type of double.  An explicit cast to float 
removes excess precision.  This is as specified in the C standard.