src/multiarray/numpyos.h File Reference

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Functions
NPY_NO_EXPORT char *	NumPyOS_ascii_formatd (char *buffer, size_t buf_size, const char *format, double val, int decimal)
NPY_NO_EXPORT char *	NumPyOS_ascii_formatf (char *buffer, size_t buf_size, const char *format, float val, int decimal)
NPY_NO_EXPORT char *	NumPyOS_ascii_formatl (char *buffer, size_t buf_size, const char *format, long double val, int decimal)
NPY_NO_EXPORT double	NumPyOS_ascii_strtod (const char *s, char **endptr)
NPY_NO_EXPORT int	NumPyOS_ascii_ftolf (FILE *fp, double *value)
NPY_NO_EXPORT int	NumPyOS_ascii_isspace (char c)

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Function Documentation

NPY_NO_EXPORT char* NumPyOS_ascii_formatd	(	char *	buffer,
		size_t	buf_size,
		const char *	format,
		double	val,
		int	decimal
	)

NPY_NO_EXPORT char* NumPyOS_ascii_formatf	(	char *	buffer,
		size_t	buf_size,
		const char *	format,
		float	val,
		int	decimal
	)

NPY_NO_EXPORT char* NumPyOS_ascii_formatl	(	char *	buffer,
		size_t	buf_size,
		const char *	format,
		long double	val,
		int	decimal
	)

NPY_NO_EXPORT int NumPyOS_ascii_ftolf	(	FILE *	fp,
		double *	value
	)

NumPyOS_ascii_ftolf:

• fp: FILE pointer
• value: Place to store the value read

Similar to PyOS_ascii_strtod, except that it reads input from a file.

Similarly to fscanf, this function always consumes leading whitespace, and any text that could be the leading part in valid input.

Return value: similar to fscanf.

• 0 if no number read,
• 1 if a number read,
• EOF if end-of-file met before reading anything.

Pass on to PyOS_ascii_strtod the leftmost matching part in regexp <blockquote>

s*[+-]? ( [0-9]*.[0-9]+([eE][+-]?[0-9]+)

nan ( ([:alphanum:_]*) )?

inf(inity)?

System Message: WARNING/2 (<string>, line 6) Line block ends without a blank line.

)

</blockquote>

case-insensitively.

The "do { ... } while (0)" wrapping in macros ensures that they behave properly eg. in "if ... else" structures.

1. emulate fscanf EOF handling

2. consume leading whitespace unconditionally

3. start reading matching input to buffer

4.1 sign (optional)

4.2 nan, inf, infinity; [case-insensitive]

accept nan([:alphanum:_]*), similarly to strtod

4.3 mantissa

4.4 exponent

5. try to convert buffer.

return 1 if something read, else 0

Referenced by _to_OBJECT().

NPY_NO_EXPORT int NumPyOS_ascii_isspace

(

char

c

)

NumPyOS_ascii_isspace:

Same as isspace under C locale

References c.

Referenced by NumPyOS_ascii_strncasecmp().

NPY_NO_EXPORT double NumPyOS_ascii_strtod	(	const char *	s,
		char **	endptr
	)

NumPyOS_ascii_strtod:

Work around bugs in PyOS_ascii_strtod

##1

Recognize POSIX inf/nan representations on all platforms.

End of ##1

## 2

At least Python versions <= 2.5.2 and <= 2.6.1

Fails to do best-efforts parsing of strings of the form "1<DP>234" where <DP> is the decimal point under the foreign locale.

End of ##2

References NPY_INFINITY, and NumPyOS_ascii_strncasecmp().

Referenced by TOTYPE().