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

6       explain_strtold_or_die - convert string to number and report errors
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SYNOPSIS

9       #include <libexplain/strtold.h>
10       long double explain_strtold_or_die(const char *nptr, char **endptr);
11       long double explain_strtold_on_error(const char *nptr, char **endptr))
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DESCRIPTION

14       The explain_strtold_or_die function is used to call the strtold(3) sys‐
15       tem call. On failure an explanation will be printed to stderr, obtained
16       from  the  explain_strtold(3) function, and then the process terminates
17       by calling exit(EXIT_FAILURE).
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19       The explain_strtold_on_error function is used to  call  the  strtold(3)
20       system  call.  On  failure  an  explanation  will be printed to stderr,
21       obtained from the explain_strtold(3) function, but still returns to the
22       caller.
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24       nptr    The  nptr,  exactly  as  to  be passed to the strtold(3) system
25               call.
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27       endptr  The endptr, exactly as to be passed to  the  strtold(3)  system
28               call.
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RETURN VALUE

31       The  explain_strtold_or_die  function only returns on success, see str‐
32       told(3) for more information. On failure,  prints  an  explanation  and
33       exits, it does not return.
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35       The  explain_strtold_on_error  function always returns the value return
36       by the wrapped strtold(3) system call.
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EXAMPLE

39       The explain_strtold_or_die function is intended to be used in a fashion
40       similar to the following example:
41              long double result = explain_strtold_or_die(nptr, endptr);
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SEE ALSO

44       strtold(3)
45               convert ASCII string to floating‐point number
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47       explain_strtold(3)
48               explain strtold(3) errors
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50       exit(2) terminate the calling process
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53       libexplain version 1.4
54       Copyright (C) 2009 Peter Miller
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58                                                     explain_strtold_or_die(3)
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