- The problem occurs when using atof to parse values such as "1e-39"
since this is out of range for a float and _can_ set errno to
ERANGE.
Similar to parsing of integers, now parse with the longest floating
point representation "long double" via strtold (guaranteed to be
part of C++11) and verify against the respective VGREAT values for
overflow. Treat anything smaller than VSMALL to be zero.
- used in various places to test if the input can be parsed as a
label/scalar, so warnings tend to flood the output.
- be more explicit when encountering range errors
- Any trailing whitespace when parsing from strings or character buffers
is ignored rather than being treated as an error. This is consistent
with behaviour when reading from an Istream and with leading whitespace
being ignored in the underlying atof/atod, strtof/strtod... functions.
- Allow parsing directly from a std::string instead of just from a 'char*'.
This reflects the C++11 addition of std::stod to complement the C
functions strtod. This also makes it easier to parse string directly
without using an IStringStream.
- Two-parameter parsing methods return success/failure.
Eg,
if (readInt32(str, &int32Val)) ...
- One-parameter parsing methods return the value on success or
emit a FatalIOError.
Eg,
const char* buf;
int32Val = readInt32(buf, &);
- Improved consistency when parsing unsigned ints.
Use strtoimax and strtoumax throughout.
- Rename readDoubleScalar -> readDouble, readFloatScalar -> readFloat.
Using the primitive name directly instead of the Foam typedef for
better consistency with readInt32 etc.
- Clean/improve parseNasScalar.
Handle normal numbers directly, reduce some operations.
