diff options
Diffstat (limited to 'stdio-common/_itoa.c')
| -rw-r--r-- | stdio-common/_itoa.c | 51 |
1 files changed, 29 insertions, 22 deletions
diff --git a/stdio-common/_itoa.c b/stdio-common/_itoa.c index 285fde2ab9..14ee85d4e0 100644 --- a/stdio-common/_itoa.c +++ b/stdio-common/_itoa.c @@ -78,10 +78,12 @@ struct base_table_t #endif +/* We do not compile _itoa if we always can use _itoa_word. */ +#if LLONG_MAX != LONG_MAX /* Local variables. */ const struct base_table_t _itoa_base_table[] attribute_hidden = { -#if BITS_PER_MP_LIMB == 64 +# if BITS_PER_MP_LIMB == 64 /* 2 */ {SEL1(0ull) 1, 1}, /* 3 */ {SEL1(0xaaaaaaaaaaaaaaabull) 0, 1}, /* 4 */ {SEL1(0ull) 1, 2}, @@ -117,8 +119,8 @@ const struct base_table_t _itoa_base_table[] attribute_hidden = /* 34 */ {SEL1(0xf0f0f0f0f0f0f0f1ull) 0, 5}, /* 35 */ {SEL1(0xea0ea0ea0ea0ea0full) 0, 5}, /* 36 */ {SEL1(0xe38e38e38e38e38full) 0, 5} -#endif -#if BITS_PER_MP_LIMB == 32 +# endif +# if BITS_PER_MP_LIMB == 32 /* 2 */ {SEL1(0ul) 1, 1, {0, 31, 0x80000000ul SEL2(0xfffffffful)}}, /* 3 */ {SEL1(0xaaaaaaabul) 0, 1, {0, 20, 0xcfd41b91ul SEL2(0x3b563c24ul)}}, /* 4 */ {SEL1(0ul) 1, 2, {1, 15, 0x40000000ul SEL2(0xfffffffful)}}, @@ -154,8 +156,9 @@ const struct base_table_t _itoa_base_table[] attribute_hidden = /* 34 */ {SEL1(0xf0f0f0f1ul) 0, 5, {1, 6, 0x5c13d840ul SEL2(0x63dfc229ul)}}, /* 35 */ {SEL1(0xd41d41d5ul) 1, 6, {1, 6, 0x6d91b519ul SEL2(0x2b0fee30ul)}}, /* 36 */ {SEL1(0x38e38e39ul) 0, 3, {0, 6, 0x81bf1000ul SEL2(0xf91bd1b6ul)}} -#endif +# endif }; +#endif /* Lower-case digits. */ extern const char _itoa_lower_digits[]; @@ -201,6 +204,7 @@ _itoa_word (unsigned long value, char *buflim, #undef SPECIAL +#if LLONG_MAX != LONG_MAX char * _itoa (value, buflim, base, upper_case) unsigned long long int value; @@ -215,7 +219,7 @@ _itoa (value, buflim, base, upper_case) switch (base) { -#define RUN_2N(BITS) \ +# define RUN_2N(BITS) \ do \ { \ /* `unsigned long long int' always has 64 bits. */ \ @@ -270,7 +274,7 @@ _itoa (value, buflim, base, upper_case) default: { char *bufend = buflim; -#if BITS_PER_MP_LIMB == 64 +# if BITS_PER_MP_LIMB == 64 mp_limb_t base_multiplier = brec->base_multiplier; if (brec->flag) while (value != 0) @@ -294,8 +298,8 @@ _itoa (value, buflim, base, upper_case) *--buflim = digits[rem]; value = quo; } -#endif -#if BITS_PER_MP_LIMB == 32 +# endif +# if BITS_PER_MP_LIMB == 32 mp_limb_t t[3]; int n; @@ -303,11 +307,11 @@ _itoa (value, buflim, base, upper_case) Optimize for frequent cases of 32 bit numbers. */ if ((mp_limb_t) (value >> 32) >= 1) { -#if UDIV_TIME > 2 * UMUL_TIME || UDIV_NEEDS_NORMALIZATION +# if UDIV_TIME > 2 * UMUL_TIME || UDIV_NEEDS_NORMALIZATION int big_normalization_steps = brec->big.normalization_steps; mp_limb_t big_base_norm = brec->big.base << big_normalization_steps; -#endif +# endif if ((mp_limb_t) (value >> 32) >= brec->big.base) { mp_limb_t x1hi, x1lo, r; @@ -316,7 +320,7 @@ _itoa (value, buflim, base, upper_case) always be very small. It might be faster just to subtract in a tight loop. */ -#if UDIV_TIME > 2 * UMUL_TIME +# if UDIV_TIME > 2 * UMUL_TIME mp_limb_t x, xh, xl; if (big_normalization_steps == 0) @@ -341,7 +345,7 @@ _itoa (value, buflim, base, upper_case) udiv_qrnnd_preinv (t[0], x, xh, xl, big_base_norm, brec->big.base_ninv); t[1] = x >> big_normalization_steps; -#elif UDIV_NEEDS_NORMALIZATION +# elif UDIV_NEEDS_NORMALIZATION mp_limb_t x, xh, xl; if (big_normalization_steps == 0) @@ -363,17 +367,17 @@ _itoa (value, buflim, base, upper_case) xl = x1lo << big_normalization_steps; udiv_qrnnd (t[0], x, xh, xl, big_base_norm); t[1] = x >> big_normalization_steps; -#else +# else udiv_qrnnd (x1hi, r, 0, (mp_limb_t) (value >> 32), brec->big.base); udiv_qrnnd (x1lo, t[2], r, (mp_limb_t) value, brec->big.base); udiv_qrnnd (t[0], t[1], x1hi, x1lo, brec->big.base); -#endif +# endif n = 3; } else { -#if (UDIV_TIME > 2 * UMUL_TIME) +# if UDIV_TIME > 2 * UMUL_TIME mp_limb_t x; value <<= brec->big.normalization_steps; @@ -381,17 +385,17 @@ _itoa (value, buflim, base, upper_case) (mp_limb_t) value, big_base_norm, brec->big.base_ninv); t[1] = x >> brec->big.normalization_steps; -#elif UDIV_NEEDS_NORMALIZATION +# elif UDIV_NEEDS_NORMALIZATION mp_limb_t x; value <<= big_normalization_steps; udiv_qrnnd (t[0], x, (mp_limb_t) (value >> 32), (mp_limb_t) value, big_base_norm); t[1] = x >> big_normalization_steps; -#else +# else udiv_qrnnd (t[0], t[1], (mp_limb_t) (value >> 32), (mp_limb_t) value, brec->big.base); -#endif +# endif n = 2; } } @@ -407,7 +411,7 @@ _itoa (value, buflim, base, upper_case) mp_limb_t ti = t[--n]; int ndig_for_this_limb = 0; -#if UDIV_TIME > 2 * UMUL_TIME +# if UDIV_TIME > 2 * UMUL_TIME mp_limb_t base_multiplier = brec->base_multiplier; if (brec->flag) while (ti != 0) @@ -433,7 +437,7 @@ _itoa (value, buflim, base, upper_case) ti = quo; ++ndig_for_this_limb; } -#else +# else while (ti != 0) { mp_limb_t quo, rem; @@ -444,7 +448,7 @@ _itoa (value, buflim, base, upper_case) ti = quo; ++ndig_for_this_limb; } -#endif +# endif /* If this wasn't the most significant word, pad with zeros. */ if (n != 0) while (ndig_for_this_limb < brec->big.ndigits) @@ -454,7 +458,7 @@ _itoa (value, buflim, base, upper_case) } } while (n != 0); -#endif +# endif if (buflim == bufend) *--buflim = '0'; } @@ -463,6 +467,7 @@ _itoa (value, buflim, base, upper_case) return buflim; } +#endif char * _fitoa_word (unsigned long value, char *buf, unsigned int base, int upper_case) @@ -474,6 +479,7 @@ _fitoa_word (unsigned long value, char *buf, unsigned int base, int upper_case) return buf; } +#if LLONG_MAX != LONG_MAX char * _fitoa (unsigned long long value, char *buf, unsigned int base, int upper_case) { @@ -483,3 +489,4 @@ _fitoa (unsigned long long value, char *buf, unsigned int base, int upper_case) *buf++ = *cp++; return buf; } +#endif |