libtommath: mp_error_to_string: return const char* instead of char*
[heimdal.git] / lib / hcrypto / libtommath / bn_error.c
blobfbba7aa1fb1449dafe8fd205b371a8f31877f785
1 #include <tommath.h>
2 #ifdef BN_ERROR_C
3 /* LibTomMath, multiple-precision integer library -- Tom St Denis
5 * LibTomMath is a library that provides multiple-precision
6 * integer arithmetic as well as number theoretic functionality.
8 * The library was designed directly after the MPI library by
9 * Michael Fromberger but has been written from scratch with
10 * additional optimizations in place.
12 * The library is free for all purposes without any express
13 * guarantee it works.
15 * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
18 static const struct {
19 int code;
20 const char *msg;
21 } msgs[] = {
22 { MP_OKAY, "Successful" },
23 { MP_MEM, "Out of heap" },
24 { MP_VAL, "Value out of range" }
27 /* return a char * string for a given code */
28 const char *mp_error_to_string(int code)
30 int x;
32 /* scan the lookup table for the given message */
33 for (x = 0; x < (int)(sizeof(msgs) / sizeof(msgs[0])); x++) {
34 if (msgs[x].code == code) {
35 return msgs[x].msg;
39 /* generic reply for invalid code */
40 return "Invalid error code";
43 #endif
45 /* $Source: /cvs/libtom/libtommath/bn_error.c,v $ */
46 /* $Revision: 1.4 $ */
47 /* $Date: 2006/12/28 01:25:13 $ */