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| explain_strtold_or_die(3) | FreeBSD Library Functions Manual | explain_strtold_or_die(3) |
NAME
explain_strtold_or_die - convert string to number and report errorsSYNOPSIS
#include <libexplain/strtold.h>long double explain_strtold_or_die(const char *nptr, char
**endptr);
long double explain_strtold_on_error(const char *nptr, char **endptr))
DESCRIPTION
The explain_strtold_or_die function is used to call the strtold(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_strtold(3) function, and then the process terminates by calling exit(EXIT_FAILURE).The explain_strtold_on_error function is used to call the strtold(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_strtold(3) function, but still returns to the caller.
- nptr
- The nptr, exactly as to be passed to the strtold(3) system call.
- endptr
- The endptr, exactly as to be passed to the strtold(3) system call.
RETURN VALUE
The explain_strtold_or_die function only returns on success, see strtold(3) for more information. On failure, prints an explanation and exits, it does not return.The explain_strtold_on_error function always returns the value return by the wrapped strtold(3) system call.
EXAMPLE
The explain_strtold_or_die function is intended to be used in a fashion similar to the following example:long double result = explain_strtold_or_die(nptr, endptr);
SEE ALSO
- strtold(3)
- convert ASCII string to floating‐point number
- explain_strtold(3)
- explain strtold(3) errors
- exit(2)
- terminate the calling process
COPYRIGHT
libexplain version 1.3Copyright (C) 2009 Peter Miller
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