diff options
Diffstat (limited to 'src/H5Tbit.c')
| -rw-r--r-- | src/H5Tbit.c | 138 |
1 files changed, 62 insertions, 76 deletions
diff --git a/src/H5Tbit.c b/src/H5Tbit.c index c6c1777..0d8103a 100644 --- a/src/H5Tbit.c +++ b/src/H5Tbit.c @@ -16,17 +16,14 @@ * the bytes are in little-endian order. */ -#include "H5Tmodule.h" /* This source code file is part of the H5T module */ +#include "H5Tmodule.h" /* This source code file is part of the H5T module */ +#include "H5private.h" /*generic functions */ +#include "H5Eprivate.h" /*error handling */ +#include "H5MMprivate.h" /* Memory management */ +#include "H5Tpkg.h" /*data-type functions */ +#include "H5WBprivate.h" /* Wrapped Buffers */ -#include "H5private.h" /*generic functions */ -#include "H5Eprivate.h" /*error handling */ -#include "H5MMprivate.h" /* Memory management */ -#include "H5Tpkg.h" /*data-type functions */ -#include "H5WBprivate.h" /* Wrapped Buffers */ - - - /*------------------------------------------------------------------------- * Function: H5T__bit_copy * @@ -37,12 +34,11 @@ *------------------------------------------------------------------------- */ void -H5T__bit_copy(uint8_t *dst, size_t dst_offset, const uint8_t *src, - size_t src_offset, size_t size) +H5T__bit_copy(uint8_t *dst, size_t dst_offset, const uint8_t *src, size_t src_offset, size_t size) { - size_t shift; - size_t mask_lo, mask_hi; - size_t s_idx, d_idx; + size_t shift; + size_t mask_lo, mask_hi; + size_t s_idx, d_idx; FUNC_ENTER_PACKAGE_NOERR @@ -71,9 +67,9 @@ H5T__bit_copy(uint8_t *dst, size_t dst_offset, const uint8_t *src, */ while (src_offset && size > 0) { size_t nbits = MIN3(size, 8 - dst_offset, 8 - src_offset); - size_t mask = ((size_t)1 << nbits) - 1; + size_t mask = ((size_t)1 << nbits) - 1; - dst[d_idx] &= (uint8_t)~(mask << dst_offset); + dst[d_idx] &= (uint8_t) ~(mask << dst_offset); dst[d_idx] = (uint8_t)(dst[d_idx] | (((src[s_idx] >> src_offset) & (uint8_t)mask) << dst_offset)); src_offset += nbits; @@ -111,7 +107,7 @@ H5T__bit_copy(uint8_t *dst, size_t dst_offset, const uint8_t *src, * bits). SHIFT is three since the source must be shifted right three bits * to line up with the destination. */ - shift = dst_offset; + shift = dst_offset; mask_lo = ((size_t)1 << (8 - shift)) - 1; mask_hi = (~mask_lo) & 0xff; @@ -128,8 +124,8 @@ H5T__bit_copy(uint8_t *dst, size_t dst_offset, const uint8_t *src, /* Finish up */ while (size > 0) { - size_t nbits = (size_t)MIN3 (size, 8 - dst_offset, 8 - src_offset); - size_t mask = ((size_t)1 << nbits) - 1; + size_t nbits = (size_t)MIN3(size, 8 - dst_offset, 8 - src_offset); + size_t mask = ((size_t)1 << nbits) - 1; dst[d_idx] &= (uint8_t)(~(mask << dst_offset)); dst[d_idx] = (uint8_t)(dst[d_idx] | (((src[s_idx] >> src_offset) & (uint8_t)mask) << dst_offset)); @@ -152,7 +148,6 @@ H5T__bit_copy(uint8_t *dst, size_t dst_offset, const uint8_t *src, FUNC_LEAVE_NOAPI_VOID } /* end H5T__bit_copy() */ - /*------------------------------------------------------------------------- * Function: H5T__bit_shift * @@ -173,9 +168,9 @@ H5T__bit_copy(uint8_t *dst, size_t dst_offset, const uint8_t *src, herr_t H5T__bit_shift(uint8_t *buf, ssize_t shift_dist, size_t offset, size_t size) { - uint8_t tmp_buf[512]; /* Temporary buffer */ - H5WB_t *wb = NULL; /* Wrapped buffer for temporary buffer */ - herr_t ret_value = SUCCEED; /* Return value */ + uint8_t tmp_buf[512]; /* Temporary buffer */ + H5WB_t *wb = NULL; /* Wrapped buffer for temporary buffer */ + herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE @@ -189,7 +184,7 @@ H5T__bit_shift(uint8_t *buf, ssize_t shift_dist, size_t offset, size_t size) if (abs_shift_dist >= size) H5T__bit_set(buf, offset, size, 0); else { - size_t buf_size = (size / 8) + 1; /* Size of shift buffer needed */ + size_t buf_size = (size / 8) + 1; /* Size of shift buffer needed */ uint8_t *shift_buf; /* Pointer to shift buffer */ /* Wrap the local buffer for serialized header info */ @@ -217,7 +212,7 @@ H5T__bit_shift(uint8_t *buf, ssize_t shift_dist, size_t offset, size_t size) H5T__bit_set(buf, offset + size - abs_shift_dist, abs_shift_dist, 0); } } /* end else */ - } /* end if */ + } /* end if */ done: /* Release resources */ @@ -227,7 +222,6 @@ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T__bit_shift() */ - /*------------------------------------------------------------------------- * Function: H5T__bit_get_d * @@ -244,24 +238,24 @@ done: uint64_t H5T__bit_get_d(uint8_t *buf, size_t offset, size_t size) { - uint64_t val = 0; - size_t i, hs; - uint64_t ret_value = 0; /* Return value */ + uint64_t val = 0; + size_t i, hs; + uint64_t ret_value = 0; /* Return value */ FUNC_ENTER_PACKAGE_NOERR HDassert(8 * sizeof(val) >= size); - H5T__bit_copy((uint8_t*)&val, (size_t)0, buf, offset, size); - switch(H5T_native_order_g) { + H5T__bit_copy((uint8_t *)&val, (size_t)0, buf, offset, size); + switch (H5T_native_order_g) { case H5T_ORDER_LE: break; case H5T_ORDER_BE: for (i = 0, hs = sizeof(val) / 2; i < hs; i++) { - uint8_t tmp = ((uint8_t*)&val)[i]; - ((uint8_t*)&val)[i] = ((uint8_t*)&val)[sizeof(val) - (i + 1)]; - ((uint8_t*)&val)[sizeof(val) - (i + 1)] = tmp; + uint8_t tmp = ((uint8_t *)&val)[i]; + ((uint8_t *)&val)[i] = ((uint8_t *)&val)[sizeof(val) - (i + 1)]; + ((uint8_t *)&val)[sizeof(val) - (i + 1)] = tmp; } break; @@ -281,7 +275,6 @@ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T__bit_get_d() */ - /*------------------------------------------------------------------------- * Function: H5T__bit_set_d * @@ -294,20 +287,20 @@ done: void H5T__bit_set_d(uint8_t *buf, size_t offset, size_t size, uint64_t val) { - size_t i, hs; + size_t i, hs; FUNC_ENTER_PACKAGE_NOERR HDassert(8 * sizeof(val) >= size); - switch(H5T_native_order_g) { + switch (H5T_native_order_g) { case H5T_ORDER_LE: break; case H5T_ORDER_BE: for (i = 0, hs = sizeof(val) / 2; i < hs; i++) { - uint8_t tmp = ((uint8_t *)&val)[i]; - ((uint8_t *)&val)[i] = ((uint8_t *)&val)[sizeof(val) - (i + 1)]; + uint8_t tmp = ((uint8_t *)&val)[i]; + ((uint8_t *)&val)[i] = ((uint8_t *)&val)[sizeof(val) - (i + 1)]; ((uint8_t *)&val)[sizeof(val) - (i + 1)] = tmp; } break; @@ -320,12 +313,11 @@ H5T__bit_set_d(uint8_t *buf, size_t offset, size_t size, uint64_t val) HDabort(); } - H5T__bit_copy(buf, offset, (uint8_t*)&val, (size_t)0, size); + H5T__bit_copy(buf, offset, (uint8_t *)&val, (size_t)0, size); FUNC_LEAVE_NOAPI_VOID } /* end H5T__bit_set_d() */ - /*------------------------------------------------------------------------- * Function: H5T__bit_set * @@ -339,7 +331,7 @@ H5T__bit_set_d(uint8_t *buf, size_t offset, size_t size, uint64_t val) void H5T__bit_set(uint8_t *buf, size_t offset, size_t size, hbool_t value) { - int idx; + int idx; FUNC_ENTER_PACKAGE_NOERR @@ -349,8 +341,8 @@ H5T__bit_set(uint8_t *buf, size_t offset, size_t size, hbool_t value) /* The first partial byte */ if (size && offset % 8) { - size_t nbits = MIN(size, 8 - offset); - unsigned mask = ((unsigned)1 << nbits) - 1; + size_t nbits = MIN(size, 8 - offset); + unsigned mask = ((unsigned)1 << nbits) - 1; if (value) buf[idx] = (uint8_t)(buf[idx] | (mask << offset)); @@ -378,7 +370,6 @@ H5T__bit_set(uint8_t *buf, size_t offset, size_t size, hbool_t value) FUNC_LEAVE_NOAPI_VOID } /* end H5T__bit_set() */ - /*------------------------------------------------------------------------- * Function: H5T__bit_find * @@ -397,13 +388,12 @@ H5T__bit_set(uint8_t *buf, size_t offset, size_t size, hbool_t value) *------------------------------------------------------------------------- */ ssize_t -H5T__bit_find(uint8_t *buf, size_t offset, size_t size, H5T_sdir_t direction, - hbool_t value) +H5T__bit_find(uint8_t *buf, size_t offset, size_t size, H5T_sdir_t direction, hbool_t value) { - ssize_t base = (ssize_t)offset; - ssize_t idx, i; - size_t iu; - ssize_t ret_value = (-1); /* Return value */ + ssize_t base = (ssize_t)offset; + ssize_t idx, i; + size_t iu; + ssize_t ret_value = (-1); /* Return value */ /* Use FUNC_ENTER_PACKAGE_NOERR here to avoid performance issues */ FUNC_ENTER_PACKAGE_NOERR @@ -486,7 +476,6 @@ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T__bit_find() */ - /*------------------------------------------------------------------------- * Function: H5T__bit_inc * @@ -500,9 +489,9 @@ done: hbool_t H5T__bit_inc(uint8_t *buf, size_t start, size_t size) { - size_t idx = start / 8; - unsigned carry = 1; - unsigned acc, mask; + size_t idx = start / 8; + unsigned carry = 1; + unsigned acc, mask; /* Use FUNC_ENTER_PACKAGE_NOERR here to avoid performance issues */ FUNC_ENTER_PACKAGE_NOERR @@ -513,7 +502,7 @@ H5T__bit_inc(uint8_t *buf, size_t start, size_t size) /* The first partial byte */ if (start) { - if(size + start < 8) + if (size + start < 8) mask = ((unsigned)1 << size) - 1; else mask = ((unsigned)1 << (8 - start)) - 1; @@ -531,7 +520,7 @@ H5T__bit_inc(uint8_t *buf, size_t start, size_t size) while (carry && size >= 8) { acc = buf[idx]; acc++; - carry = acc & 0x100; + carry = acc & 0x100; buf[idx] = (uint8_t)(acc & 0xff); idx++; size -= 8; @@ -540,7 +529,7 @@ H5T__bit_inc(uint8_t *buf, size_t start, size_t size) /* The last bits */ if (carry && size > 0) { mask = ((unsigned)1 << size) - 1; - acc = buf[idx] & mask; + acc = buf[idx] & mask; acc++; carry = acc & ((unsigned)1 << size); buf[idx] &= (uint8_t)(~mask); @@ -550,7 +539,6 @@ H5T__bit_inc(uint8_t *buf, size_t start, size_t size) FUNC_LEAVE_NOAPI(carry ? TRUE : FALSE) } /* end H5T__bit_inc() */ - /*------------------------------------------------------------------------- * Function: H5T__bit_dec * @@ -565,10 +553,10 @@ H5T__bit_inc(uint8_t *buf, size_t start, size_t size) hbool_t H5T__bit_dec(uint8_t *buf, size_t start, size_t size) { - size_t idx = start / 8; - size_t pos = start % 8; - uint8_t tmp; - unsigned borrow = 0; + size_t idx = start / 8; + size_t pos = start % 8; + uint8_t tmp; + unsigned borrow = 0; /* Use FUNC_ENTER_PACKAGE_NOERR here to avoid performance issues */ FUNC_ENTER_PACKAGE_NOERR @@ -617,18 +605,17 @@ H5T__bit_dec(uint8_t *buf, size_t start, size_t size) * and get 10111100. A bit is borrowed from 6th bit(buf[idx]>>6=00000010, tmp>>6=00000011, * not equal). We need to put this bit back by increment 1000000. */ - tmp = buf[idx]; + tmp = buf[idx]; buf[idx] = (uint8_t)(buf[idx] - (1 << pos)); if ((buf[idx] >> (pos + size)) != tmp >> (pos + size)) { buf[idx] = (uint8_t)(buf[idx] + (1 << (pos + size))); - borrow = 1; + borrow = 1; } } FUNC_LEAVE_NOAPI(borrow ? TRUE : FALSE) } /* end H5T__bit_dec() */ - /*------------------------------------------------------------------------- * Function: H5T__bit_neg * @@ -642,9 +629,9 @@ H5T__bit_dec(uint8_t *buf, size_t start, size_t size) void H5T__bit_neg(uint8_t *buf, size_t start, size_t size) { - size_t idx = start / 8; - size_t pos = start % 8; - uint8_t tmp[1]; + size_t idx = start / 8; + size_t pos = start % 8; + uint8_t tmp[1]; /* Use FUNC_ENTER_PACKAGE_NOERR here to avoid performance issues */ FUNC_ENTER_PACKAGE_NOERR @@ -656,30 +643,29 @@ H5T__bit_neg(uint8_t *buf, size_t start, size_t size) tmp[0] = (uint8_t)~buf[idx]; /* Simply copy the negated bit field back to the original byte */ - if((size + start - 1) / 8 > idx) { /*bit sequence doesn't end in the same byte as starts*/ - H5T__bit_copy(&(buf[idx]), pos, tmp, pos, (8-pos)); + if ((size + start - 1) / 8 > idx) { /*bit sequence doesn't end in the same byte as starts*/ + H5T__bit_copy(&(buf[idx]), pos, tmp, pos, (8 - pos)); idx++; size -= (8 - pos); /* The middle bytes */ - while(size >= 8) { - buf[idx] = (uint8_t)~(buf[idx]); + while (size >= 8) { + buf[idx] = (uint8_t) ~(buf[idx]); idx++; size -= 8; } /* The last partial byte */ - if(size > 0) { + if (size > 0) { /* Similar to the first byte case, where sequence ends in the same byte as starts */ tmp[0] = (uint8_t)~buf[idx]; H5T__bit_copy(&(buf[idx]), (size_t)0, tmp, (size_t)0, size); } } - else { + else { /* bit sequence ends in the same byte as starts */ H5T__bit_copy(&(buf[idx]), pos, tmp, pos, size); } FUNC_LEAVE_NOAPI_VOID } /* end H5T__bit_neg() */ - |