http://www.reddit.com/r/programming/comments/cb8qv/incorrectly_rounded_conversions_in_gcc_and_glibc/

    0.500000000000000166533453693773481063544750213623046875
     Correct = 0x1.0000000000002p-1
     dmc =     0x1.0000000000002p-1
     strtod =  0x1.0000000000002p-1

    3.518437208883201171875e13
     Correct = 0x1.0000000000002p+45
     dmc =     0x1.0000000000002p+45
     strtod =  0x1.0000000000002p+45

    62.5364939768271845828
     Correct = 0x1.f44abd5aa7ca4p+5
     dmc =     0x1.f44abd5aa7ca4p+5
     strtod =  0x1.f44abd5aa7ca4p+5

    8.10109172351e-10
     Correct = 0x1.bd5cbaef0fd0cp-31
     dmc =     0x1.bd5cbaef0fd0cp-31
     strtod =  0x1.bd5cbaef0fd0cp-31

    1.50000000000000011102230246251565404236316680908203125
     Correct = 0x1.8p+0
     dmc =     0x1.8p+0
     strtod =  0x1.8p+0

    9007199254740991.4999999999999999999999999999999995
     Correct = 0x1.fffffffffffffp+52
     dmc =     0x1.fffffffffffffp+52
     strtod =  0x1.fffffffffffffp+52