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/* libjodycode: error strings and printing functions
*
* Copyright (C) 2023-2026 by Jody Bruchon <jody@jodybruchon.com>
* Released under The MIT License
*/
#include <stdint.h>
#include <stdio.h>
#include "libjodycode.h"
int32_t jc_errno;
struct jc_error {
const char *name;
const char *desc;
};
#define JC_ERRCNT 15
static const int errcnt = JC_ERRCNT;
static const struct jc_error jc_error_list[JC_ERRCNT + 1] = {
{ "no_error", "success" }, // 0 - not a real error
{ "null", "function received a bad NULL parameter" }, // 1
{ "cdotdot", "jc_collapse_dotdot() call failed" }, // 2
{ "grn_end_dir", "get_relative_name() result has directory at end" }, // 3
{ "bad_errnum", "invalid error number" }, // 4
{ "bad_argv", "bad argv pointer" }, // 5
{ "mb_wc_fail", "a multibyte/wide char conversion failed" }, // 6
{ "alarm_fail", "alarm call failed" }, // 7
{ "alloc_fail", "memory allocation failed" }, // 8
{ "numstrcmp", "jc_numeric_strcmp() was passed a NULL pointer" }, // 9
{ "datetime", "date/time string is invalid" }, // 10
{ "win32api", "a Win32 API call failed" }, // 11
{ "kernelver", "kernel version is too old" }, // 12
{ "no_memory", "memory allocation failed (out of memory)" }, // 13
{ "vbuf_fail", "setvbuf() call failed" }, //14
{ NULL, NULL }, // 15
};
const char *jc_get_errname(int errnum)
{
if (errnum > errcnt) return NULL;
if (errnum < 0) errnum = -errnum;
return jc_error_list[errnum].name;
}
const char *jc_get_errdesc(int errnum)
{
if (errnum > errcnt) return NULL;
if (errnum < 0) errnum = -errnum;
return jc_error_list[errnum].desc;
}
int jc_print_error(int errnum)
{
if (errnum > errcnt) return JC_EBADERR;
if (errnum < 0) errnum = -errnum;
fprintf(stderr, "error: %s (%s)\n", jc_error_list[errnum].desc, jc_error_list[errnum].name);
return 0;
}
#ifdef JC_TEST
int main(void)
{
int i;
for (i = 0; i < errcnt; i++) printf("[%d] %s: %s\n", i, jc_get_errname(i), jc_get_errdesc(i));
for (i = 0; i < errcnt; i++) jc_print_error(i);
}
#endif
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