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Diffstat (limited to 'winsup/mingw/mingwex/strtoimax.c')
-rw-r--r--winsup/mingw/mingwex/strtoimax.c112
1 files changed, 0 insertions, 112 deletions
diff --git a/winsup/mingw/mingwex/strtoimax.c b/winsup/mingw/mingwex/strtoimax.c
deleted file mode 100644
index 0cf2c01ed..000000000
--- a/winsup/mingw/mingwex/strtoimax.c
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- This source code was extracted from the Q8 package created and
- placed in the PUBLIC DOMAIN by Doug Gwyn <gwyn@arl.mil>
- last edit: 1999/11/05 gwyn@arl.mil
-
- Implements subclause 7.8.2 of ISO/IEC 9899:1999 (E).
-
- This particular implementation requires the matching <inttypes.h>.
- It also assumes that character codes for A..Z and a..z are in
- contiguous ascending order; this is true for ASCII but not EBCDIC.
-*/
-#include <stdlib.h>
-#include <errno.h>
-#include <ctype.h>
-#include <inttypes.h>
-
-/* Helper macros */
-
-/* convert digit character to number, in any base */
-#define ToNumber(c) (isdigit(c) ? (c) - '0' : \
- isupper(c) ? (c) - 'A' + 10 : \
- islower(c) ? (c) - 'a' + 10 : \
- -1 /* "invalid" flag */ \
- )
-/* validate converted digit character for specific base */
-#define valid(n, b) ((n) >= 0 && (n) < (b))
-
-intmax_t
-strtoimax(nptr, endptr, base)
- register const char * __restrict__ nptr;
- char ** __restrict__ endptr;
- register int base;
- {
- register uintmax_t accum; /* accumulates converted value */
- register int n; /* numeral from digit character */
- int minus; /* set iff minus sign seen */
- int toobig; /* set iff value overflows */
-
- if ( endptr != NULL )
- *endptr = (char *)nptr; /* in case no conversion's performed */
-
- if ( base < 0 || base == 1 || base > 36 )
- {
- errno = EDOM;
- return 0; /* unspecified behavior */
- }
-
- /* skip initial, possibly empty sequence of white-space characters */
-
- while ( isspace(*nptr) )
- ++nptr;
-
- /* process subject sequence: */
-
- /* optional sign */
- if ( (minus = *nptr == '-') || *nptr == '+' )
- ++nptr;
-
- if ( base == 0 ) {
- if ( *nptr == '0' ) {
- if ( nptr[1] == 'X' || nptr[1] == 'x' )
- base = 16;
- else
- base = 8;
- }
- else
- base = 10;
- }
- /* optional "0x" or "0X" for base 16 */
-
- if ( base == 16 && *nptr == '0' && (nptr[1] == 'X' || nptr[1] == 'x') )
- nptr += 2; /* skip past this prefix */
-
- /* check whether there is at least one valid digit */
-
- n = ToNumber(*nptr);
- ++nptr;
-
- if ( !valid(n, base) )
- return 0; /* subject seq. not of expected form */
-
- accum = n;
-
- for ( toobig = 0; n = ToNumber(*nptr), valid(n, base); ++nptr )
- if ( accum > INTMAX_MAX / base + 2 ) /* major wrap-around */
- toobig = 1; /* but keep scanning */
- else
- accum = base * accum + n;
-
- if ( endptr != NULL )
- *endptr = (char *)nptr; /* points to first not-valid-digit */
-
- if ( minus )
- {
- if ( accum > (uintmax_t)INTMAX_MAX + 1 )
- toobig = 1;
- }
- else
- if ( accum > (uintmax_t)INTMAX_MAX )
- toobig = 1;
-
- if ( toobig )
- {
- errno = ERANGE;
- return minus ? INTMAX_MIN : INTMAX_MAX;
- }
- else
- return (intmax_t)(minus ? -accum : accum);
- }
-
-long long __attribute__ ((alias ("strtoimax")))
-strtoll (const char* __restrict__ nptr, char ** __restrict__ endptr, int base);