The handling of +0 and -0 was changed, according to the IEEE 754 standard: (+0)-(+0) now returns (+), and ftoa(-0) will return “-0.E0”.
Handcrafted 64-bit floating point routines for AVR/arduino microprocessors
The handling of +0 and -0 was changed, according to the IEEE 754 standard: (+0)-(+0) now returns (+), and ftoa(-0) will return “-0.E0”.