1explain_strtold_or_die(3) Library Functions Manual explain_strtold_or_die(3)
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6 explain_strtold_or_die - convert string to number and report errors
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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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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
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27 endptr The endptr, exactly as to be passed to the strtold(3) system
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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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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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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)