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28 lines
1.2 KiB
Plaintext
28 lines
1.2 KiB
Plaintext
@c Documentation of gnulib module 'c-strtod'.
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@c Copyright (C) 2008-2017 Free Software Foundation, Inc.
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@c Permission is granted to copy, distribute and/or modify this document
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@c under the terms of the GNU Free Documentation License, Version 1.3 or
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@c any later version published by the Free Software Foundation; with no
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@c Invariant Sections, no Front-Cover Texts, and no Back-Cover
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@c Texts. A copy of the license is included in the ``GNU Free
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@c Documentation License'' file as part of this distribution.
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The @code{c-strtod} module contains a string to number (@samp{double})
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conversion function operating on single-byte character strings, that operates
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as if the locale encoding was ASCII.
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(The "C" locale on many systems has the locale encoding "ASCII".)
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The function is:
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@smallexample
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extern double c_strtod (const char *string, char **endp);
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@end smallexample
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In particular, only a period @samp{.} is accepted as decimal point, even
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when the current locale's notion of decimal point is a comma @samp{,},
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and no characters outside the basic character set are accepted.
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On platforms without @code{strtod_l}, this function is not safe for use in
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multi-threaded applications since it calls @code{setlocale}.
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