D:\archer\code\nuttx\libs\libc\stdlib\lib_strtod.c: error C2124: divide or mod by zero Windows MSVC restrictions, MSVC doesn't allow division through a zero literal, but allows it through const variable set to zero Reference: https://docs.microsoft.com/en-us/cpp/error-messages/compiler-errors-1/compiler-error-c2124?view=msvc-170 Signed-off-by: chao an <anchao@xiaomi.com>