95 lines
1.6 KiB
C
95 lines
1.6 KiB
C
#include <stdlib.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include "error.h"
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//! Die from error with exit code
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void
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error_die (void)
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{
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exit (EXIT_ERROR);
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}
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//! print to stderror (must be generic to capture linux variants)
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void
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vprintfstderr (char *fmt, va_list args)
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{
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#ifdef linux
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vfprintf (stderr, fmt, args);
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#else
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// nothing for non-linux yet
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#endif
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}
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void
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printfstderr (char *fmt, ...)
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{
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va_list args;
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va_start (args, fmt);
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vprintfstderr (fmt, args);
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va_end (args);
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}
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//! Print error message header
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/**
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* Adapted from [K&R2], p. 174
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*@todo It would be nice to redirect all output to stderr, which would enable use of termprint etc.
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*/
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void
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error_pre (void)
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{
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printfstderr ("error: ");
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}
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//! Print post-error message and die.
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/**
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* Adapted from [K&R2], p. 174
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* Input is comparable to printf, only end of line is not required.
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*/
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void
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error_post (char *fmt, ...)
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{
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va_list args;
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va_start (args, fmt);
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vprintfstderr (fmt, args);
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printfstderr ("\n");
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va_end (args);
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exit (EXIT_ERROR);
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}
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//! Print error message and die.
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/**
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* Adapted from [K&R2], p. 174
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* Input is comparable to printf, only end of line is not required.
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*/
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void
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error (char *fmt, ...)
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{
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va_list args;
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error_pre ();
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va_start (args, fmt);
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vprintfstderr (fmt, args);
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printfstderr ("\n");
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va_end (args);
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error_die ();
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}
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//! Print warning
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/**
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* Input is comparable to printf, only end of line is not required.
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*/
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void
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warning (char *fmt, ...)
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{
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va_list args;
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va_start (args, fmt);
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printfstderr ("warning: ");
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vprintfstderr (fmt, args);
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printfstderr ("\n");
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va_end (args);
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}
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