Codice

358 volume VI os16
Sorgenti della libreria generale 359
105.11.6 lib/string/memset.c
105.11.11 lib/string/strcpy.c
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Si veda la sezione 98.72.
Si veda la sezione 98.108.
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3140001 |#include
3140002 |//----------------------------------------------------------------------
3190001 |#include
3190002 |//----------------------------------------------------------------------
3140003 |void *
3140004 |memset (void *memory, int c, size_t n)
3140005 |{
3140006 | char *m = (char *) memory;
3140007 | size_t i;
3140008 | for (i = 0; n > 0 && i < n; i++)
3140009 | {
3140010 | m[i] = (char) c;
3140011 | }
3140012 | return memory;
3140013 |}
3190003 |char *
3190004 |strcpy (char *restrict dst, const char *restrict org)
3190005 |{
3190006 | size_t i;
3190007 | for (i = 0; org[i] != 0; i++)
3190008 | {
3190009 | dst[i] = org[i];
3190010 | }
3190011 | dst[i] = 0;
3190012 | return dst;
3190013 |}
105.11.7 lib/string/strcat.c
105.11.12 lib/string/strcspn.c
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Si veda la sezione 98.104.
Si veda la sezione 98.118.
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3150001 |#include
3150002 |//----------------------------------------------------------------------
3150003 |char *
3150004 |strcat (char *restrict dst, const char *restrict org)
3150005 |{
3150006 | size_t i;
3150007 | size_t j;
3150008 | for (i = 0; dst[i] != 0; i++)
3150009 | {
3150010 | ; // Just look for the null character.
3150011 | }
3150012 | for (j = 0; org[j] != 0; i++, j++)
3150013 | {
3150014 | dst[i] = org[j];
3150015 | }
3150016 | dst[i] = 0;
3150017 | return dst;
3150018 |}
105.11.8 lib/string/strchr.c
Si veda la sezione 98.105.
3160001 |#include
3160002 |//----------------------------------------------------------------------
3200001 |#include
3200002 |//----------------------------------------------------------------------
3200003 |size_t
3200004 |strcspn (const char *string, const char *reject)
3200005 |{
3200006 | size_t i;
3200007 | size_t j;
3200008 | int found;
3200009 | for (i = 0; string[i] != 0; i++)
3200010 | {
3200011 | for (j = 0, found = 0; reject[j] != 0 || found; j++)
3200012 | {
3200013 | if (string[i] == reject[j])
3200014 | {
3200015 | found = 1;
3200016 | break;
3200017 | }
3200018 | }
3200019 | if (found)
3200020 | {
3200021 | break;
3200022 | }
3200023 | }
3200024 | return i;
3200025 |}
3160003 |char *
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3160004 |strchr (const char *string, int c)
3160005 |{
3160006 | size_t i;
3160007 | for (i = 0; ; i++)
3160008 | {
3160009 | if (string[i] == (char) c)
3160010 | {
3160011 | return (char *) (string + i);
3160012 | }
3160013 | else if (string[i] == 0)
3160014 | {
3160015 | return NULL;
3160016 | }
3160017 | }
3160018 |}
105.11.9 lib/string/strcmp.c
Si veda la sezione 98.106.
3170001 |#include
3170002 |//----------------------------------------------------------------------
3170003 |int
3170004 |strcmp (const char *string1, const char *string2)
3170005 |{
3170006 | char *a = (char *) string1;
3170007 | char *b = (char *) string2;
3170008 | size_t i;
3170009 | for (i = 0; ; i++)
3170010 | {
3170011 | if (a[i] > b[i])
3170012 | {
3170013 | return 1;
3170014 | }
3170015 | else if (a[i] < b[i])
3170016 | {
3170017 | return -1;
3170018 | }
3170019 | else if (a[i] == 0 && b[i] == 0)
3170020 | {
3170021 | return 0;
3170022 | }
3170023 | }
3170024 |}
105.11.10 lib/string/strcoll.c
Si veda la sezione 98.106.
3180001 |#include
3180002 |//----------------------------------------------------------------------
3180003 |int
3180004 |strcoll (const char *string1, const char *string2)
3180005 |{
3180006 | return (strcmp (string1, string2));
3180007 |}
105.11.13 lib/string/strdup.c
Si veda la sezione 98.110.
3210001 |#include
3210002 |#include
3210003 |#include
3210004 |//----------------------------------------------------------------------
3210005 |char *
3210006 |strdup (const char *string)
3210007 |{
3210008 | size_t size;
3210009 | char *copy;
3210010 | //
3210011 | // Get string size: must be added 1, to count the termination null
3210012 | // character.
3210013 | //
3210014 | size = strlen (string) + 1;
3210015 | //
3210016 | copy = malloc (size);
3210017 | //
3210018 | if (copy == NULL)
3210019 | {
3210020 | errset (ENOMEM); // Not enough memory.
3210021 | return (NULL);
3210022 | }
3210023 | //
3210024 | strcpy (copy, string);
3210025 | //
3210026 | return (copy);
3210027 |}
105.11.14 lib/string/strerror.c
Si veda la sezione 98.111.
3220001 |#include
3220002 |#include
3220003 |//----------------------------------------------------------------------
3220004 |#define ERROR_MAX 100
3220005 |//----------------------------------------------------------------------
3220006 |char *
3220007 |strerror (int errnum)
3220008 |{
3220009 | static char *err[ERROR_MAX];
3220010 | //
3220011 | err[0] = "No error";
3220012 | err[E2BIG] = TEXT_E2BIG;
3220013 | err[EACCES] = TEXT_EACCES;
3220014 | err[EADDRINUSE] = TEXT_EADDRINUSE;
3220015 | err[EADDRNOTAVAIL] = TEXT_EADDRNOTAVAIL;
3220016 | err[EAFNOSUPPORT] = TEXT_EAFNOSUPPORT;
3220017 | err[EAGAIN] = TEXT_EAGAIN;
3220018 | err[EALREADY] = TEXT_EALREADY;
3220019 | err[EBADF] = TEXT_EBADF;
3220020 | err[EBADMSG] = TEXT_EBADMSG;
3220021 | err[EBUSY] = TEXT_EBUSY;
3220022 | err[ECANCELED] = TEXT_ECANCELED;
3220023 | err[ECHILD] = TEXT_ECHILD;
3220024 | err[ECONNABORTED] = TEXT_ECONNABORTED;
3220025 | err[ECONNREFUSED] = TEXT_ECONNREFUSED;
3220026 | err[ECONNRESET] = TEXT_ECONNRESET;
3220027 | err[EDEADLK] = TEXT_EDEADLK;
3220028 | err[EDESTADDRREQ] = TEXT_EDESTADDRREQ;
3220029 | err[EDOM] = TEXT_EDOM;
3220030 | err[EDQUOT] = TEXT_EDQUOT;
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