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- /* Copyright (C) 2003 Manuel Novoa III
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * The GNU C Library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with the GNU C Library; see the file COPYING.LIB. If
- * not, see <http://www.gnu.org/licenses/>.
- */
- /* ATTENTION! ATTENTION! ATTENTION! ATTENTION! ATTENTION!
- *
- * This code is currently under development. Also, I plan to port
- * it to elks which is a 16-bit environment with a fairly limited
- * compiler. Therefore, please refrain from modifying this code
- * and, instead, pass any bug-fixes, etc. to me. Thanks. Manuel
- *
- * ATTENTION! ATTENTION! ATTENTION! ATTENTION! ATTENTION! */
- #ifndef _UINTMAXTOSTR_H
- #define _UINTMAXTOSTR_H 1
- #include <features.h>
- #include <limits.h>
- #include <stdint.h>
- #if INTMAX_MAX <= 2147483647L
- #define __UIM_BUFLEN 12 /* 10 digits + 1 nul + 1 sign */
- #elif INTMAX_MAX <= 9223372036854775807LL
- #define __UIM_BUFLEN 22 /* 20 digits + 1 nul + 1 sign */
- #else
- #error unknown number of digits for intmax_t!
- #endif
- #ifdef LLONG_MAX /* --------------- */
- #if LLONG_MAX <= 2147483647L
- #define __UIM_BUFLEN_LLONG 12 /* 10 digits + 1 nul + 1 sign */
- #elif LLONG_MAX <= 9223372036854775807LL
- #define __UIM_BUFLEN_LLONG 22 /* 20 digits + 1 nul + 1 sign */
- #else
- #error unknown number of digits for long long!
- #endif
- #endif /* ULLONG_MAX ----------------------------- */
- #if LONG_MAX <= 2147483647L
- #define __UIM_BUFLEN_LONG 12 /* 10 digits + 1 nul + 1 sign */
- #elif LONG_MAX <= 9223372036854775807LL
- #define __UIM_BUFLEN_LONG 22 /* 20 digits + 1 nul + 1 sign */
- #else
- #error unknown number of digits for long!
- #endif
- #if INT_MAX <= 32767
- #define __UIM_BUFLEN_INT 7 /* 10 digits + 1 nul + 1 sign */
- #elif INT_MAX <= 2147483647L
- #define __UIM_BUFLEN_INT 12 /* 10 digits + 1 nul + 1 sign */
- #else
- #error unknown number of digits for int!
- #endif
- typedef enum {
- __UIM_DECIMAL = 0,
- __UIM_GROUP = ',', /* Base 10 locale-dependent grouping. */
- __UIM_LOWER = 'a' - 10,
- __UIM_UPPER = 'A' - 10,
- } __UIM_CASE;
- /* Convert the int val to a string in base abs(base). val is treated as
- * an unsigned ??? int type if base > 0, and signed if base < 0. This
- * is an internal function with _no_ error checking done unless assert()s
- * are enabled.
- *
- * Note: bufend is a pointer to the END of the buffer passed.
- * Call like this:
- * char buf[SIZE], *p;
- * p = _xltostr(buf + sizeof(buf) - 1, {unsigned int}, 10, __UIM_DECIMAL)
- * p = _xltostr(buf + sizeof(buf) - 1, {int}, -10, __UIM_DECIMAL)
- *
- * WARNING: If base > 10, case _must_be_ either __UIM_LOWER or __UIM_UPPER
- * for lower and upper case alphas respectively.
- * WARNING: If val is really a signed type, make sure base is negative!
- * Otherwise, you could overflow your buffer.
- */
- extern char *_uintmaxtostr(char * __restrict bufend, uintmax_t uval,
- int base, __UIM_CASE alphacase) attribute_hidden;
- /* TODO -- make this either a (possibly inline) function? */
- #ifndef __BCC__
- #define _int10tostr(bufend, intval) \
- _uintmaxtostr((bufend), (intval), -10, __UIM_DECIMAL)
- #else /* bcc doesn't do prototypes, we need to explicitly cast */
- #define _int10tostr(bufend, intval) \
- _uintmaxtostr((bufend), (uintmax_t)(intval), -10, __UIM_DECIMAL)
- #endif
- #define __BUFLEN_INT10TOSTR __UIM_BUFLEN_INT
- #endif /* _UINTMAXTOSTR_H */
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