static void strtol_func() { /* Without integner prefix(e.g. 0x, 0b...) */ char text[1024] = "12345670qwert\0"; char text2[1024] = "qwert12345670qwert\0"; char text3[1024] = "qwert12345670\0"; char* non_intger; long int rtn = 0; int base = 0; /* base 0 */ rtn = __strtol(text, &non_intger, base); assert_int_equal(rtn, 12345670); assert_memory_equal(non_intger, text + 8, strlen(text + 8)); // rtn = __strtol(text2, &non_intger, base); // assert_int_equal(rtn, 12345670); // assert_memory_equal(non_intger, text2 + 8, strlen(text2 + 8)); // // rtn = __strtol(text3, &non_intger, base); // assert_int_equal(rtn, 12345670); // assert_memory_equal(non_intger, text3 + 8, strlen(text3 + 8)); /* base 8 */ base = 8; rtn = __strtol(text, &non_intger, base); assert_int_equal(rtn, 012345670); assert_memory_equal(non_intger, text + 8, strlen(text + 8)); // base = 8; // rtn = __strtol(text2, &non_intger, base); // assert_int_equal(rtn, 012345670); // assert_memory_equal(non_intger, text2 + 8, strlen(text2 + 8)); // // base = 8; // rtn = __strtol(text3, &non_intger, base); // assert_int_equal(rtn, 012345670); // assert_memory_equal(non_intger, text3 + 8, strlen(text3 + 8)); /* base 10 */ base = 10; rtn = __strtol(text, &non_intger, base); assert_int_equal(rtn, 12345670); assert_memory_equal(non_intger, text + 8, strlen(text + 8)); // base = 10; // rtn = __strtol(text2, &non_intger, base); // assert_int_equal(rtn, 12345670); // assert_memory_equal(non_intger, text2 + 8, strlen(text2 + 8)); // // base = 10; // rtn = __strtol(text3, &non_intger, base); // assert_int_equal(rtn, 12345670); // assert_memory_equal(non_intger, text3 + 8, strlen(text3 + 8)); /* base 16 */ base = 16; rtn = __strtol(text, &non_intger, base); assert_int_equal(rtn, 0x12345670); assert_memory_equal(non_intger, text + 8, strlen(text + 8)); // base = 16; // rtn = __strtol(text2, &non_intger, base); // assert_int_equal(rtn, 0x12345670); // assert_memory_equal(non_intger, text2 + 8, strlen(text2 + 8)); // // base = 16; // rtn = __strtol(text3, &non_intger, base); // assert_int_equal(rtn, 0x12345670); // assert_memory_equal(non_intger, text3 + 8, strlen(text3 + 8)); /* With prefix 0(octet)*/ memset(text, 0, 1024); strncpy(text, "012345670qwert", strlen("012345670qwert")); // memset(text2, 0, 1024); // strncpy(text2, "qwert012345670qwert", strlen("qwert012345670qwert")); // // memset(text, 0, 1024); // strncpy(text, "qwert012345670", strlen("qwert012345670")); /* base 0 */ base = 0; rtn = __strtol(text, &non_intger, base); assert_int_equal(rtn, 012345670); assert_memory_equal(non_intger, text + 9, strlen(text + 9)); // base = 0; // rtn = __strtol(text2, &non_intger, base); // assert_int_equal(rtn, 012345670); // assert_memory_equal(non_intger, text2 + 9, strlen(text2 + 9)); // // base = 0; // rtn = __strtol(text3, &non_intger, base); // assert_int_equal(rtn, 012345670); // assert_memory_equal(non_intger, text3 + 9, strlen(text3 + 9)); /* base 8 */ base = 8; rtn = __strtol(text, &non_intger, base); assert_int_equal(rtn, 012345670); assert_memory_equal(non_intger, text + 9, strlen(text + 9)); // base = 8; // rtn = __strtol(text2, &non_intger, base); // assert_int_equal(rtn, 012345670); // assert_memory_equal(non_intger, text2 + 9, strlen(text2 + 9)); // // base = 8; // rtn = __strtol(text3, &non_intger, base); // assert_int_equal(rtn, 012345670); // assert_memory_equal(non_intger, text3 + 9, strlen(text3 + 9)); /* base 10 */ base = 10; rtn = __strtol(text, &non_intger, base); assert_int_equal(rtn, 12345670); assert_memory_equal(non_intger, text + 9, strlen(text + 9)); // base = 10; // rtn = __strtol(text2, &non_intger, base); // assert_int_equal(rtn, 12345670); // assert_memory_equal(non_intger, text2 + 9, strlen(text2 + 9)); // // base = 10; // rtn = __strtol(text3, &non_intger, base); // assert_int_equal(rtn, 12345670); // assert_memory_equal(non_intger, text3 + 9, strlen(text3 + 9)); /* base 16 */ base = 16; rtn = __strtol(text, &non_intger, base); assert_int_equal(rtn, 0x12345670); assert_memory_equal(non_intger, text + 9, strlen(text + 9)); // base = 16; // rtn = __strtol(text2, &non_intger, base); // assert_int_equal(rtn, 0x12345670); // assert_memory_equal(non_intger, text2 + 9, strlen(text2 + 9)); // // base = 16; // rtn = __strtol(text3, &non_intger, base); // assert_int_equal(rtn, 0x12345670); // assert_memory_equal(non_intger, text3 + 9, strlen(text3 + 9)); /* With prefix 0x(hex)*/ memset(text, 0, 1024); strncpy(text, "0x12345670qwert", strlen("0x12345670qwert")); // memset(text2, 0, 1024); // strncpy(text2, "qwert0x12345670qwert", strlen("qwert0x12345670qwert")); // // memset(text3, 0, 1024); // strncpy(text3, "qwert0x12345670", strlen("qwert0x12345670qwert")); /* base 0 */ base = 0; rtn = __strtol(text, &non_intger, base); assert_int_equal(rtn, 0x12345670); assert_memory_equal(non_intger, text + 10, strlen(text + 10)); // base = 0; // rtn = __strtol(text2, &non_intger, base); // assert_int_equal(rtn, 0x12345670); // assert_memory_equal(non_intger, text2 + 10, strlen(text2 + 10)); // // base = 0; // rtn = __strtol(text3, &non_intger, base); // assert_int_equal(rtn, 0x12345670); // assert_memory_equal(non_intger, text3 + 10, strlen(text3 + 10)); /* base 8 */ base = 8; rtn = __strtol(text, &non_intger, base); assert_int_equal(rtn, 0); assert_memory_equal(non_intger, text + 1, strlen(text + 1)); // base = 8; // rtn = __strtol(text2, &non_intger, base); // assert_int_equal(rtn, 0); // assert_memory_equal(non_intger, text2 + 1, strlen(text2 + 1)); // // base = 8; // rtn = __strtol(text3, &non_intger, base); // assert_int_equal(rtn, 0); // assert_memory_equal(non_intger, text3 + 1, strlen(text3 + 1)); /* base 10 */ base = 10; rtn = __strtol(text, &non_intger, base); assert_int_equal(rtn, 0); assert_memory_equal(non_intger, text + 1, strlen(text + 1)); // base = 10; // rtn = __strtol(text2, &non_intger, base); // assert_int_equal(rtn, 0); // assert_memory_equal(non_intger, text2 + 1, strlen(text2 + 1)); // // base = 10; // rtn = __strtol(text3, &non_intger, base); // assert_int_equal(rtn, 0); // assert_memory_equal(non_intger, text3 + 1, strlen(text3 + 1)); /* base 16 */ base = 16; rtn = __strtol(text, &non_intger, base); assert_int_equal(rtn, 0x12345670); assert_memory_equal(non_intger, text + 10, strlen(text + 10)); // base = 16; // rtn = __strtol(text2, &non_intger, base); // assert_int_equal(rtn, 0x12345670); // assert_memory_equal(non_intger, text2 + 10, strlen(text + 10)); // // base = 16; // rtn = __strtol(text3, &non_intger, base); // assert_int_equal(rtn, 0x12345670); // assert_memory_equal(non_intger, text3 + 10, strlen(text + 10)); }
strtol_error __xstrtol (const char *s, char **ptr, int strtol_base, __strtol_t *val, const char *valid_suffixes) { char *t_ptr; char **p; __strtol_t tmp; strtol_error err = LONGINT_OK; assert (0 <= strtol_base && strtol_base <= 36); p = (ptr ? ptr : &t_ptr); if (! TYPE_SIGNED (__strtol_t)) { const char *q = s; unsigned char ch = *q; while (isspace (ch)) ch = *++q; if (ch == '-') return LONGINT_INVALID; } errno = 0; tmp = __strtol (s, p, strtol_base); if (*p == s) { /* If there is no number but there is a valid suffix, assume the number is 1. The string is invalid otherwise. */ if (valid_suffixes && **p && strchr (valid_suffixes, **p)) tmp = 1; else return LONGINT_INVALID; } else if (errno != 0) { if (errno != ERANGE) return LONGINT_INVALID; err = LONGINT_OVERFLOW; } /* Let valid_suffixes == NULL mean `allow any suffix'. */ /* FIXME: update all callers except the ones that allow suffixes after the number, changing last parameter NULL to `""'. */ if (!valid_suffixes) { *val = tmp; return err; } if (**p != '\0') { int base = 1024; int suffixes = 1; strtol_error overflow; if (!strchr (valid_suffixes, **p)) { *val = tmp; return err | LONGINT_INVALID_SUFFIX_CHAR; } if (strchr (valid_suffixes, '0')) { /* The ``valid suffix'' '0' is a special flag meaning that an optional second suffix is allowed, which can change the base. A suffix "B" (e.g. "100MB") stands for a power of 1000, whereas a suffix "iB" (e.g. "100MiB") stands for a power of 1024. If no suffix (e.g. "100M"), assume power-of-1024. */ switch (p[0][1]) { case 'i': if (p[0][2] == 'B') suffixes += 2; break; case 'B': case 'D': /* 'D' is obsolescent */ base = 1000; suffixes++; break; } } switch (**p) { case 'b': overflow = bkm_scale (&tmp, 512); break; case 'B': overflow = bkm_scale (&tmp, 1024); break; case 'c': overflow = 0; break; case 'E': /* exa or exbi */ overflow = bkm_scale_by_power (&tmp, base, 6); break; case 'G': /* giga or gibi */ case 'g': /* 'g' is undocumented; for compatibility only */ overflow = bkm_scale_by_power (&tmp, base, 3); break; case 'k': /* kilo */ case 'K': /* kibi */ overflow = bkm_scale_by_power (&tmp, base, 1); break; case 'M': /* mega or mebi */ case 'm': /* 'm' is undocumented; for compatibility only */ overflow = bkm_scale_by_power (&tmp, base, 2); break; case 'P': /* peta or pebi */ overflow = bkm_scale_by_power (&tmp, base, 5); break; case 'T': /* tera or tebi */ case 't': /* 't' is undocumented; for compatibility only */ overflow = bkm_scale_by_power (&tmp, base, 4); break; case 'w': overflow = bkm_scale (&tmp, 2); break; case 'Y': /* yotta or 2**80 */ overflow = bkm_scale_by_power (&tmp, base, 8); break; case 'Z': /* zetta or 2**70 */ overflow = bkm_scale_by_power (&tmp, base, 7); break; default: *val = tmp; return err | LONGINT_INVALID_SUFFIX_CHAR; } err |= overflow; *p += suffixes; if (**p) err |= LONGINT_INVALID_SUFFIX_CHAR; } *val = tmp; return err; }
strtol_error __xstrtol (const char *s, char **ptr, int strtol_base, __strtol_t *val, const char *valid_suffixes) { char *t_ptr; char **p; __strtol_t tmp; assert (0 <= strtol_base && strtol_base <= 36); p = (ptr ? ptr : &t_ptr); if (! TYPE_SIGNED (__strtol_t)) { const char *q = s; while (ISSPACE ((unsigned char) *q)) ++q; if (*q == '-') return LONGINT_INVALID; } errno = 0; tmp = __strtol (s, p, strtol_base); if (errno != 0) return LONGINT_OVERFLOW; if (*p == s) return LONGINT_INVALID; /* Let valid_suffixes == NULL mean `allow any suffix'. */ /* FIXME: update all callers except the ones that allow suffixes after the number, changing last parameter NULL to `""'. */ if (!valid_suffixes) { *val = tmp; return LONGINT_OK; } if (**p != '\0') { int base = 1024; int suffixes = 1; int overflow; if (!strchr (valid_suffixes, **p)) { *val = tmp; return LONGINT_INVALID_SUFFIX_CHAR; } if (strchr (valid_suffixes, '0')) { /* The ``valid suffix'' '0' is a special flag meaning that an optional second suffix is allowed, which can change the base, e.g. "100MD" for 100 megabytes decimal. */ switch (p[0][1]) { case 'B': suffixes++; break; case 'D': base = 1000; suffixes++; break; } } switch (**p) { case 'b': overflow = bkm_scale (&tmp, 512); break; case 'B': overflow = bkm_scale (&tmp, 1024); break; case 'c': overflow = 0; break; case 'E': /* Exa */ overflow = bkm_scale_by_power (&tmp, base, 6); break; case 'G': /* Giga */ overflow = bkm_scale_by_power (&tmp, base, 3); break; case 'k': /* kilo */ overflow = bkm_scale_by_power (&tmp, base, 1); break; case 'M': /* Mega */ case 'm': /* 'm' is undocumented; for backward compatibility only */ overflow = bkm_scale_by_power (&tmp, base, 2); break; case 'P': /* Peta */ overflow = bkm_scale_by_power (&tmp, base, 5); break; case 'T': /* Tera */ overflow = bkm_scale_by_power (&tmp, base, 4); break; case 'w': overflow = bkm_scale (&tmp, 2); break; case 'Y': /* Yotta */ overflow = bkm_scale_by_power (&tmp, base, 8); break; case 'Z': /* Zetta */ overflow = bkm_scale_by_power (&tmp, base, 7); break; default: *val = tmp; return LONGINT_INVALID_SUFFIX_CHAR; break; } if (overflow) return LONGINT_OVERFLOW; (*p) += suffixes; } *val = tmp; return LONGINT_OK; }