src/utils.c@929016224c3c (annotated)
src/utils.c
Mon, 27 Dec 2021 16:51:10 +0100
- author
- Mike Becker <universe@uap-core.de>
- date
- Mon, 27 Dec 2021 16:51:10 +0100
- changeset 483
- 929016224c3c
- child 674
- dc514a5d42a5
- permissions
- -rw-r--r--
add ported UCX buffer implementation
Notes:
* ucx_buffer_extend has been removed
in favor of cxBufferMinimumCapacity
* the buffer struct now has a union for
char* and unsigned char* buffers
| universe@483 | 1 | /* |
| universe@483 | 2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
| universe@483 | 3 | * |
| universe@483 | 4 | * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved. |
| universe@483 | 5 | * |
| universe@483 | 6 | * Redistribution and use in source and binary forms, with or without |
| universe@483 | 7 | * modification, are permitted provided that the following conditions are met: |
| universe@483 | 8 | * |
| universe@483 | 9 | * 1. Redistributions of source code must retain the above copyright |
| universe@483 | 10 | * notice, this list of conditions and the following disclaimer. |
| universe@483 | 11 | * |
| universe@483 | 12 | * 2. Redistributions in binary form must reproduce the above copyright |
| universe@483 | 13 | * notice, this list of conditions and the following disclaimer in the |
| universe@483 | 14 | * documentation and/or other materials provided with the distribution. |
| universe@483 | 15 | * |
| universe@483 | 16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| universe@483 | 17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| universe@483 | 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| universe@483 | 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| universe@483 | 20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| universe@483 | 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| universe@483 | 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| universe@483 | 23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| universe@483 | 24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| universe@483 | 25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| universe@483 | 26 | * POSSIBILITY OF SUCH DAMAGE. |
| universe@483 | 27 | */ |
| universe@483 | 28 | |
| universe@483 | 29 | #include "cx/utils.h" |
| universe@483 | 30 | |
| universe@483 | 31 | #ifndef CX_SZMUL_BUILTIN |
| universe@483 | 32 | int cx_szmul_impl(size_t a, size_t b, size_t *result) { |
| universe@483 | 33 | if(a == 0 || b == 0) { |
| universe@483 | 34 | *result = 0; |
| universe@483 | 35 | return 0; |
| universe@483 | 36 | } |
| universe@483 | 37 | size_t r = a * b; |
| universe@483 | 38 | if(r / b == a) { |
| universe@483 | 39 | *result = r; |
| universe@483 | 40 | return 0; |
| universe@483 | 41 | } else { |
| universe@483 | 42 | *result = 0; |
| universe@483 | 43 | return 1; |
| universe@483 | 44 | } |
| universe@483 | 45 | } |
| universe@483 | 46 | #endif |
