1explain_strtod_or_die(3)   Library Functions Manual   explain_strtod_or_die(3)
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NAME

6       explain_strtod_or_die - convert string to number and report errors
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SYNOPSIS

9       #include <libexplain/strtod.h>
10       double explain_strtod_or_die(const char *nptr, char **endptr);
11       double explain_strtod_on_error(const char *nptr, char **endptr))
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DESCRIPTION

14       The explain_strtod_or_die function is used to call the strtod(3) system
15       call. On failure an explanation will be  printed  to  stderr,  obtained
16       from the explain_strtod(3) function, and then the process terminates by
17       calling exit(EXIT_FAILURE).
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19       The explain_strtod_on_error function is used to call the strtod(3) sys‐
20       tem call. On failure an explanation will be printed to stderr, obtained
21       from the explain_strtod(3) function, but still returns to the caller.
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23       nptr    The nptr, exactly as to be passed to the strtod(3) system call.
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25       endptr  The endptr, exactly as to be passed  to  the  strtod(3)  system
26               call.
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RETURN VALUE

29       The  explain_strtod_or_die  function  only returns on success, see str‐
30       tod(3) for more information. On  failure,  prints  an  explanation  and
31       exits, it does not return.
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33       The explain_strtod_on_error function always returns the value return by
34       the wrapped strtod(3) system call.
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EXAMPLE

37       The explain_strtod_or_die function is intended to be used in a  fashion
38       similar to the following example:
39              double result = explain_strtod_or_die(nptr, endptr);
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SEE ALSO

42       strtod(3)
43               convert ASCII string to floating‐point number
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45       explain_strtod(3)
46               explain strtod(3) errors
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48       exit(2) terminate the calling process
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51       libexplain version 1.4
52       Copyright (C) 2009 Peter Miller
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56                                                      explain_strtod_or_die(3)
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