DBL_MAX_EXP       264 base/third_party/dmg_fp/dtoa.cc #define DBL_MAX_EXP 1024
DBL_MAX_EXP       271 base/third_party/dmg_fp/dtoa.cc #define DBL_MAX_EXP 63
DBL_MAX_EXP       279 base/third_party/dmg_fp/dtoa.cc #define DBL_MAX_EXP 127