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