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astChr2Double
-
read a double value from a string
- Description:
- This function reads a double from the supplied null-terminated string,
ignoring leading and trailing white space. AST__BAD is ereturned
without error if the string is not a numerical value.
- Synopsis:
- double astChr2Double( const char
str )
- Parameters:
-
str
-
Pointer to the string.
- Returned Value:
-
astChr2Double()
-
The double value, or AST__BAD.
- Notes:
- A value of AST__BAD is returned if this function is invoked with
the global error status set or if it should fail for any reason.
Next: astChrCase - Convert a string to upper or lower case
Up: AST Memory Management and Utility Functions
Previous: astCalloc - Allocate and initialise memory
AST A Library for Handling World Coordinate Systems in Astronomy
Starlink User Note 211
R.F. Warren-Smith & D.S. Berry
24th May 2011
E-mail:ussc@star.rl.ac.uk
Copyright (C) 2009 Science \& Technology Facilities Council