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Diffstat (limited to 'runtime/GCCLibraries/libc/atox.c')
| -rw-r--r-- | runtime/GCCLibraries/libc/atox.c | 118 |
1 files changed, 0 insertions, 118 deletions
diff --git a/runtime/GCCLibraries/libc/atox.c b/runtime/GCCLibraries/libc/atox.c deleted file mode 100644 index 726f432..0000000 --- a/runtime/GCCLibraries/libc/atox.c +++ /dev/null @@ -1,118 +0,0 @@ -//===-- atox.c - Ascii string parsers for LLVM libc Library -------*- C -*-===// -// -// A lot of this code is ripped gratuitously from glibc and libiberty. -// -//===----------------------------------------------------------------------===// - - -#define isspace(x) ((x) == ' ' || (x) == '\t' || (x) == '\n') -#define isdigit(x) ((x) >= '0' && (x) <= '9') -#define isupper(x) ((x) >= 'A' && (x) <= 'Z') -#define islower(x) ((x) >= 'a' && (x) <= 'z') -#define isalpha(x) (isupper(x) || islower(x)) - -#ifndef ULONG_MAX -#define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF */ -#endif - -#ifndef LONG_MAX -#define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF */ -#endif - -#ifndef LONG_MIN -#define LONG_MIN ((long)(~LONG_MAX)) /* 0x80000000 */ -#endif - -#if 0 -/* - * Convert a string to a long integer. - * - * Ignores `locale' stuff. Assumes that the upper and lower case - * alphabets and digits are each contiguous. - */ -long strtol(const char *nptr, char **endptr, int base) { - register const char *s = nptr; - register unsigned long acc; - register int c; - register unsigned long cutoff; - register int neg = 0, any, cutlim; - - /* - * Skip white space and pick up leading +/- sign if any. - * If base is 0, allow 0x for hex and 0 for octal, else - * assume decimal; if base is already 16, allow 0x. - */ - do { - c = *s++; - } while (isspace(c)); - if (c == '-') { - neg = 1; - c = *s++; - } else if (c == '+') - c = *s++; - if ((base == 0 || base == 16) && - c == '0' && (*s == 'x' || *s == 'X')) { - c = s[1]; - s += 2; - base = 16; - } - if (base == 0) - base = c == '0' ? 8 : 10; - - /* - * Compute the cutoff value between legal numbers and illegal - * numbers. That is the largest legal value, divided by the - * base. An input number that is greater than this value, if - * followed by a legal input character, is too big. One that - * is equal to this value may be valid or not; the limit - * between valid and invalid numbers is then based on the last - * digit. For instance, if the range for longs is - * [-2147483648..2147483647] and the input base is 10, - * cutoff will be set to 214748364 and cutlim to either - * 7 (neg==0) or 8 (neg==1), meaning that if we have accumulated - * a value > 214748364, or equal but the next digit is > 7 (or 8), - * the number is too big, and we will return a range error. - * - * Set any if any `digits' consumed; make it negative to indicate - * overflow. - */ - cutoff = neg ? -(unsigned long)LONG_MIN : LONG_MAX; - cutlim = cutoff % (unsigned long)base; - cutoff /= (unsigned long)base; - for (acc = 0, any = 0;; c = *s++) { - if (isdigit(c)) - c -= '0'; - else if (isalpha(c)) - c -= isupper(c) ? 'A' - 10 : 'a' - 10; - else - break; - if (c >= base) - break; - if (any < 0 || acc > cutoff || acc == cutoff && c > cutlim) - any = -1; - else { - any = 1; - acc *= base; - acc += c; - } - } - if (any < 0) { - acc = neg ? LONG_MIN : LONG_MAX; - } else if (neg) - acc = -acc; - if (endptr != 0) - *endptr = (char *) (any ? s - 1 : nptr); - return (acc); -} - - -/* Convert a string to an int. */ -int atoi(const char *nptr) { - return (int)strtol(nptr, 0, 10); -} - -/* Convert a string to a long int. */ -long int atol(const char *nptr) { - return strtol(nptr, 0, 10); -} -#endif |