Michael Spencer / Smoothie

Fork of Smoothie to port to mbed non-LPC targets.

Dependencies:   mbed

Fork of Smoothie by Stéphane Cachat

libs/checksumm.h@3:f151d08d335c, 2014-03-02 (annotated)

Committer:
Bigcheese
Date:
Sun Mar 02 06:33:08 2014 +0000
Revision:
3:f151d08d335c
Parent:
2:1df0b61d3b5a 
Bunch of stuff. Need to locally merge in updated USB changes.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Michael J. Spencer 2:1df0b61d3b5a 1 /*
Michael J. Spencer 2:1df0b61d3b5a 2 This file is part of Smoothie (http://smoothieware.org/)
Michael J. Spencer 2:1df0b61d3b5a 3 The motion control part is heavily based on Grbl (https://github.com/simen/grbl)
Michael J. Spencer 2:1df0b61d3b5a 4
Michael J. Spencer 2:1df0b61d3b5a 5 Smoothie is free software: you can redistribute it and/or modify it under
Michael J. Spencer 2:1df0b61d3b5a 6 the terms of the GNU General Public License as published by the Free
Michael J. Spencer 2:1df0b61d3b5a 7 Software Foundation, either version 3 of the License, or (at your option)
Michael J. Spencer 2:1df0b61d3b5a 8 any later version.
Michael J. Spencer 2:1df0b61d3b5a 9
Michael J. Spencer 2:1df0b61d3b5a 10 Smoothie is distributed in the hope that it will be useful, but WITHOUT ANY
Michael J. Spencer 2:1df0b61d3b5a 11 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
Michael J. Spencer 2:1df0b61d3b5a 12 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
Michael J. Spencer 2:1df0b61d3b5a 13 details.
Michael J. Spencer 2:1df0b61d3b5a 14
Michael J. Spencer 2:1df0b61d3b5a 15 You should have received a copy of the GNU General Public License along
Michael J. Spencer 2:1df0b61d3b5a 16 with Smoothie. If not, see <http://www.gnu.org/licenses/>.
Michael J. Spencer 2:1df0b61d3b5a 17 */
Michael J. Spencer 2:1df0b61d3b5a 18 /* Calculates Fletcher Checksum at compile time using recursive macros. */
Michael J. Spencer 2:1df0b61d3b5a 19 #ifndef _CHECKSUM_MACRO_H_
Michael J. Spencer 2:1df0b61d3b5a 20 #define _CHECKSUM_MACRO_H_
Michael J. Spencer 2:1df0b61d3b5a 21
Michael J. Spencer 2:1df0b61d3b5a 22 /* There are two compile time checksumming approaches in this file. One uses
Michael J. Spencer 2:1df0b61d3b5a 23 the C preprocessor and the other uses new C++11 features. They should both
Michael J. Spencer 2:1df0b61d3b5a 24 do the same thing but my current compiler, GCC 4.7, doesn't always do the
Michael J. Spencer 2:1df0b61d3b5a 25 constant folding for the C++ approach and this causes code bloat. The C
Michael J. Spencer 2:1df0b61d3b5a 26 preprocessor approach can currently generate the exact same code in
Michael J. Spencer 2:1df0b61d3b5a 27 Checked/Release builds as the old method of pre-calculating checksums by
Michael J. Spencer 2:1df0b61d3b5a 28 hand and pasting them into the code.
Michael J. Spencer 2:1df0b61d3b5a 29
Michael J. Spencer 2:1df0b61d3b5a 30 Keeping both versions here: the active C version and the C++ version
Michael J. Spencer 2:1df0b61d3b5a 31 that we should switch to later if newer compilers do the required constant
Michael J. Spencer 2:1df0b61d3b5a 32 folding (maybe there are optimization flags to help here.)
Michael J. Spencer 2:1df0b61d3b5a 33 */
Michael J. Spencer 2:1df0b61d3b5a 34 #ifdef CHECKSUM_USE_CPP
Michael J. Spencer 2:1df0b61d3b5a 35
Michael J. Spencer 2:1df0b61d3b5a 36 #include <type_traits>
Michael J. Spencer 2:1df0b61d3b5a 37
Michael J. Spencer 2:1df0b61d3b5a 38 /* Cool C++11 approach contributed by bgamari on #smoothieware IRC channel.
Michael J. Spencer 2:1df0b61d3b5a 39 * Unfortunately this will have to wait until after we switch to GCC 4.7.
Michael J. Spencer 2:1df0b61d3b5a 40 */
Michael J. Spencer 2:1df0b61d3b5a 41 constexpr uint16_t checksum(const char* s, size_t n, size_t i, uint16_t sum1, uint16_t sum2) {
Michael J. Spencer 2:1df0b61d3b5a 42 return (i <= n) ? checksum(s, n, i+1, (sum1 + s[i]) % 255, (sum2 + sum1) % 255) : ((sum2 << 8) | sum1);
Michael J. Spencer 2:1df0b61d3b5a 43 }
Michael J. Spencer 2:1df0b61d3b5a 44
Michael J. Spencer 2:1df0b61d3b5a 45 constexpr uint16_t operator "" _checksum(const char* s, size_t n) {
Michael J. Spencer 2:1df0b61d3b5a 46 return checksum(s, n, 0, 0, 0);
Michael J. Spencer 2:1df0b61d3b5a 47 }
Michael J. Spencer 2:1df0b61d3b5a 48
Michael J. Spencer 2:1df0b61d3b5a 49 #define CHECKSUM(X) std::integral_constant<uint16_t, X##_checksum>::value
Michael J. Spencer 2:1df0b61d3b5a 50
Michael J. Spencer 2:1df0b61d3b5a 51 #else /* !CHECKSUM_USE_CPP */
Michael J. Spencer 2:1df0b61d3b5a 52
Michael J. Spencer 2:1df0b61d3b5a 53 /* Adam Green's old and crusty C approach. */
Michael J. Spencer 2:1df0b61d3b5a 54 /* Recursively define SUM1, the basic checksum % 255 */
Michael J. Spencer 2:1df0b61d3b5a 55 #define SUM1_1(X) ((X)[0] % 255)
Michael J. Spencer 2:1df0b61d3b5a 56 #define SUM1_2(X) ((SUM1_1(X) + (X)[1]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 57 #define SUM1_3(X) ((SUM1_2(X) + (X)[2]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 58 #define SUM1_4(X) ((SUM1_3(X) + (X)[3]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 59 #define SUM1_5(X) ((SUM1_4(X) + (X)[4]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 60 #define SUM1_6(X) ((SUM1_5(X) + (X)[5]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 61 #define SUM1_7(X) ((SUM1_6(X) + (X)[6]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 62 #define SUM1_8(X) ((SUM1_7(X) + (X)[7]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 63 #define SUM1_9(X) ((SUM1_8(X) + (X)[8]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 64 #define SUM1_10(X) ((SUM1_9(X) + (X)[9]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 65 #define SUM1_11(X) ((SUM1_10(X) + (X)[10]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 66 #define SUM1_12(X) ((SUM1_11(X) + (X)[11]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 67 #define SUM1_13(X) ((SUM1_12(X) + (X)[12]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 68 #define SUM1_14(X) ((SUM1_13(X) + (X)[13]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 69 #define SUM1_15(X) ((SUM1_14(X) + (X)[14]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 70 #define SUM1_16(X) ((SUM1_15(X) + (X)[15]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 71 #define SUM1_17(X) ((SUM1_16(X) + (X)[16]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 72 #define SUM1_18(X) ((SUM1_17(X) + (X)[17]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 73 #define SUM1_19(X) ((SUM1_18(X) + (X)[18]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 74 #define SUM1_20(X) ((SUM1_19(X) + (X)[19]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 75 #define SUM1_21(X) ((SUM1_20(X) + (X)[20]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 76 #define SUM1_22(X) ((SUM1_21(X) + (X)[21]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 77 #define SUM1_23(X) ((SUM1_22(X) + (X)[22]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 78 #define SUM1_24(X) ((SUM1_23(X) + (X)[23]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 79 #define SUM1_25(X) ((SUM1_24(X) + (X)[24]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 80 #define SUM1_26(X) ((SUM1_25(X) + (X)[25]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 81 #define SUM1_27(X) ((SUM1_26(X) + (X)[26]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 82 #define SUM1_28(X) ((SUM1_27(X) + (X)[27]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 83 #define SUM1_29(X) ((SUM1_28(X) + (X)[28]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 84 #define SUM1_30(X) ((SUM1_29(X) + (X)[29]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 85 #define SUM1_31(X) ((SUM1_30(X) + (X)[30]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 86 #define SUM1_32(X) ((SUM1_31(X) + (X)[31]) % 255)
Michael J. Spencer 2:1df0b61d3b5a 87
Michael J. Spencer 2:1df0b61d3b5a 88 /* Recursively define SUM2, the sum of SUM1s % 255 */
Michael J. Spencer 2:1df0b61d3b5a 89 #define SUM2_1(X) (SUM1_1(X) % 255)
Michael J. Spencer 2:1df0b61d3b5a 90 #define SUM2_2(X) ((SUM2_1(X) + SUM1_2(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 91 #define SUM2_3(X) ((SUM2_2(X) + SUM1_3(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 92 #define SUM2_4(X) ((SUM2_3(X) + SUM1_4(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 93 #define SUM2_5(X) ((SUM2_4(X) + SUM1_5(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 94 #define SUM2_6(X) ((SUM2_5(X) + SUM1_6(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 95 #define SUM2_7(X) ((SUM2_6(X) + SUM1_7(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 96 #define SUM2_8(X) ((SUM2_7(X) + SUM1_8(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 97 #define SUM2_9(X) ((SUM2_8(X) + SUM1_9(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 98 #define SUM2_10(X) ((SUM2_9(X) + SUM1_10(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 99 #define SUM2_11(X) ((SUM2_10(X) + SUM1_11(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 100 #define SUM2_12(X) ((SUM2_11(X) + SUM1_12(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 101 #define SUM2_13(X) ((SUM2_12(X) + SUM1_13(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 102 #define SUM2_14(X) ((SUM2_13(X) + SUM1_14(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 103 #define SUM2_15(X) ((SUM2_14(X) + SUM1_15(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 104 #define SUM2_16(X) ((SUM2_15(X) + SUM1_16(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 105 #define SUM2_17(X) ((SUM2_16(X) + SUM1_17(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 106 #define SUM2_18(X) ((SUM2_17(X) + SUM1_18(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 107 #define SUM2_19(X) ((SUM2_18(X) + SUM1_19(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 108 #define SUM2_20(X) ((SUM2_19(X) + SUM1_20(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 109 #define SUM2_21(X) ((SUM2_20(X) + SUM1_21(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 110 #define SUM2_22(X) ((SUM2_21(X) + SUM1_22(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 111 #define SUM2_23(X) ((SUM2_22(X) + SUM1_23(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 112 #define SUM2_24(X) ((SUM2_23(X) + SUM1_24(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 113 #define SUM2_25(X) ((SUM2_24(X) + SUM1_25(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 114 #define SUM2_26(X) ((SUM2_25(X) + SUM1_26(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 115 #define SUM2_27(X) ((SUM2_26(X) + SUM1_27(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 116 #define SUM2_28(X) ((SUM2_27(X) + SUM1_28(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 117 #define SUM2_29(X) ((SUM2_28(X) + SUM1_29(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 118 #define SUM2_30(X) ((SUM2_29(X) + SUM1_30(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 119 #define SUM2_31(X) ((SUM2_30(X) + SUM1_31(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 120 #define SUM2_32(X) ((SUM2_31(X) + SUM1_32(X)) % 255)
Michael J. Spencer 2:1df0b61d3b5a 121
Michael J. Spencer 2:1df0b61d3b5a 122 /* Define overall checksum as 16-bit combination of SUM1 in lower 8-bits and SUM2 in upper 8-bits. */
Michael J. Spencer 2:1df0b61d3b5a 123 #define CHECKSUM_(SUM1,SUM2) (SUM1) | (SUM2 << 8)
Michael J. Spencer 2:1df0b61d3b5a 124 #define CHECKSUM_1(X) CHECKSUM_(SUM1_1(X),SUM2_1(X))
Michael J. Spencer 2:1df0b61d3b5a 125 #define CHECKSUM_2(X) CHECKSUM_(SUM1_2(X),SUM2_2(X))
Michael J. Spencer 2:1df0b61d3b5a 126 #define CHECKSUM_3(X) CHECKSUM_(SUM1_3(X),SUM2_3(X))
Michael J. Spencer 2:1df0b61d3b5a 127 #define CHECKSUM_4(X) CHECKSUM_(SUM1_4(X),SUM2_4(X))
Michael J. Spencer 2:1df0b61d3b5a 128 #define CHECKSUM_5(X) CHECKSUM_(SUM1_5(X),SUM2_5(X))
Michael J. Spencer 2:1df0b61d3b5a 129 #define CHECKSUM_6(X) CHECKSUM_(SUM1_6(X),SUM2_6(X))
Michael J. Spencer 2:1df0b61d3b5a 130 #define CHECKSUM_7(X) CHECKSUM_(SUM1_7(X),SUM2_7(X))
Michael J. Spencer 2:1df0b61d3b5a 131 #define CHECKSUM_8(X) CHECKSUM_(SUM1_8(X),SUM2_8(X))
Michael J. Spencer 2:1df0b61d3b5a 132 #define CHECKSUM_9(X) CHECKSUM_(SUM1_9(X),SUM2_9(X))
Michael J. Spencer 2:1df0b61d3b5a 133 #define CHECKSUM_10(X) CHECKSUM_(SUM1_10(X),SUM2_10(X))
Michael J. Spencer 2:1df0b61d3b5a 134 #define CHECKSUM_11(X) CHECKSUM_(SUM1_11(X),SUM2_11(X))
Michael J. Spencer 2:1df0b61d3b5a 135 #define CHECKSUM_12(X) CHECKSUM_(SUM1_12(X),SUM2_12(X))
Michael J. Spencer 2:1df0b61d3b5a 136 #define CHECKSUM_13(X) CHECKSUM_(SUM1_13(X),SUM2_13(X))
Michael J. Spencer 2:1df0b61d3b5a 137 #define CHECKSUM_14(X) CHECKSUM_(SUM1_14(X),SUM2_14(X))
Michael J. Spencer 2:1df0b61d3b5a 138 #define CHECKSUM_15(X) CHECKSUM_(SUM1_15(X),SUM2_15(X))
Michael J. Spencer 2:1df0b61d3b5a 139 #define CHECKSUM_16(X) CHECKSUM_(SUM1_16(X),SUM2_16(X))
Michael J. Spencer 2:1df0b61d3b5a 140 #define CHECKSUM_17(X) CHECKSUM_(SUM1_17(X),SUM2_17(X))
Michael J. Spencer 2:1df0b61d3b5a 141 #define CHECKSUM_18(X) CHECKSUM_(SUM1_18(X),SUM2_18(X))
Michael J. Spencer 2:1df0b61d3b5a 142 #define CHECKSUM_19(X) CHECKSUM_(SUM1_19(X),SUM2_19(X))
Michael J. Spencer 2:1df0b61d3b5a 143 #define CHECKSUM_20(X) CHECKSUM_(SUM1_20(X),SUM2_20(X))
Michael J. Spencer 2:1df0b61d3b5a 144 #define CHECKSUM_21(X) CHECKSUM_(SUM1_21(X),SUM2_21(X))
Michael J. Spencer 2:1df0b61d3b5a 145 #define CHECKSUM_22(X) CHECKSUM_(SUM1_22(X),SUM2_22(X))
Michael J. Spencer 2:1df0b61d3b5a 146 #define CHECKSUM_23(X) CHECKSUM_(SUM1_23(X),SUM2_23(X))
Michael J. Spencer 2:1df0b61d3b5a 147 #define CHECKSUM_24(X) CHECKSUM_(SUM1_24(X),SUM2_24(X))
Michael J. Spencer 2:1df0b61d3b5a 148 #define CHECKSUM_25(X) CHECKSUM_(SUM1_25(X),SUM2_25(X))
Michael J. Spencer 2:1df0b61d3b5a 149 #define CHECKSUM_26(X) CHECKSUM_(SUM1_26(X),SUM2_26(X))
Michael J. Spencer 2:1df0b61d3b5a 150 #define CHECKSUM_27(X) CHECKSUM_(SUM1_27(X),SUM2_27(X))
Michael J. Spencer 2:1df0b61d3b5a 151 #define CHECKSUM_28(X) CHECKSUM_(SUM1_28(X),SUM2_28(X))
Michael J. Spencer 2:1df0b61d3b5a 152 #define CHECKSUM_29(X) CHECKSUM_(SUM1_29(X),SUM2_29(X))
Michael J. Spencer 2:1df0b61d3b5a 153 #define CHECKSUM_30(X) CHECKSUM_(SUM1_30(X),SUM2_30(X))
Michael J. Spencer 2:1df0b61d3b5a 154 #define CHECKSUM_31(X) CHECKSUM_(SUM1_31(X),SUM2_31(X))
Michael J. Spencer 2:1df0b61d3b5a 155 #define CHECKSUM_32(X) CHECKSUM_(SUM1_32(X),SUM2_32(X))
Michael J. Spencer 2:1df0b61d3b5a 156
Michael J. Spencer 2:1df0b61d3b5a 157 #ifdef DEBUG
Michael J. Spencer 2:1df0b61d3b5a 158
Michael J. Spencer 2:1df0b61d3b5a 159 #include <utils.h>
Michael J. Spencer 2:1df0b61d3b5a 160 #define CHECKSUM(X) get_checksum(X)
Michael J. Spencer 2:1df0b61d3b5a 161
Michael J. Spencer 2:1df0b61d3b5a 162 #else /* !DEBUG */
Michael J. Spencer 2:1df0b61d3b5a 163
Michael J. Spencer 2:1df0b61d3b5a 164 #define CHECKSUM(X) (sizeof(X) == 0 ? 0 : \
Michael J. Spencer 2:1df0b61d3b5a 165 sizeof(X) == 1 ? 0 : \
Michael J. Spencer 2:1df0b61d3b5a 166 sizeof(X) == 2 ? CHECKSUM_1(X) : \
Michael J. Spencer 2:1df0b61d3b5a 167 sizeof(X) == 3 ? CHECKSUM_2(X) : \
Michael J. Spencer 2:1df0b61d3b5a 168 sizeof(X) == 4 ? CHECKSUM_3(X) : \
Michael J. Spencer 2:1df0b61d3b5a 169 sizeof(X) == 5 ? CHECKSUM_4(X) : \
Michael J. Spencer 2:1df0b61d3b5a 170 sizeof(X) == 6 ? CHECKSUM_5(X) : \
Michael J. Spencer 2:1df0b61d3b5a 171 sizeof(X) == 7 ? CHECKSUM_6(X) : \
Michael J. Spencer 2:1df0b61d3b5a 172 sizeof(X) == 8 ? CHECKSUM_7(X) : \
Michael J. Spencer 2:1df0b61d3b5a 173 sizeof(X) == 9 ? CHECKSUM_8(X) : \
Michael J. Spencer 2:1df0b61d3b5a 174 sizeof(X) == 10 ? CHECKSUM_9(X) : \
Michael J. Spencer 2:1df0b61d3b5a 175 sizeof(X) == 11 ? CHECKSUM_10(X) : \
Michael J. Spencer 2:1df0b61d3b5a 176 sizeof(X) == 12 ? CHECKSUM_11(X) : \
Michael J. Spencer 2:1df0b61d3b5a 177 sizeof(X) == 13 ? CHECKSUM_12(X) : \
Michael J. Spencer 2:1df0b61d3b5a 178 sizeof(X) == 14 ? CHECKSUM_13(X) : \
Michael J. Spencer 2:1df0b61d3b5a 179 sizeof(X) == 15 ? CHECKSUM_14(X) : \
Michael J. Spencer 2:1df0b61d3b5a 180 sizeof(X) == 16 ? CHECKSUM_15(X) : \
Michael J. Spencer 2:1df0b61d3b5a 181 sizeof(X) == 17 ? CHECKSUM_16(X) : \
Michael J. Spencer 2:1df0b61d3b5a 182 sizeof(X) == 18 ? CHECKSUM_17(X) : \
Michael J. Spencer 2:1df0b61d3b5a 183 sizeof(X) == 19 ? CHECKSUM_18(X) : \
Michael J. Spencer 2:1df0b61d3b5a 184 sizeof(X) == 20 ? CHECKSUM_19(X) : \
Michael J. Spencer 2:1df0b61d3b5a 185 sizeof(X) == 21 ? CHECKSUM_20(X) : \
Michael J. Spencer 2:1df0b61d3b5a 186 sizeof(X) == 22 ? CHECKSUM_21(X) : \
Michael J. Spencer 2:1df0b61d3b5a 187 sizeof(X) == 23 ? CHECKSUM_22(X) : \
Michael J. Spencer 2:1df0b61d3b5a 188 sizeof(X) == 24 ? CHECKSUM_23(X) : \
Michael J. Spencer 2:1df0b61d3b5a 189 sizeof(X) == 25 ? CHECKSUM_24(X) : \
Michael J. Spencer 2:1df0b61d3b5a 190 sizeof(X) == 26 ? CHECKSUM_25(X) : \
Michael J. Spencer 2:1df0b61d3b5a 191 sizeof(X) == 27 ? CHECKSUM_26(X) : \
Michael J. Spencer 2:1df0b61d3b5a 192 sizeof(X) == 28 ? CHECKSUM_27(X) : \
Michael J. Spencer 2:1df0b61d3b5a 193 sizeof(X) == 29 ? CHECKSUM_28(X) : \
Michael J. Spencer 2:1df0b61d3b5a 194 sizeof(X) == 30 ? CHECKSUM_29(X) : \
Michael J. Spencer 2:1df0b61d3b5a 195 sizeof(X) == 31 ? CHECKSUM_30(X) : \
Michael J. Spencer 2:1df0b61d3b5a 196 sizeof(X) == 32 ? CHECKSUM_31(X) : \
Michael J. Spencer 2:1df0b61d3b5a 197 sizeof(X) == 33 ? CHECKSUM_32(X) : \
Michael J. Spencer 2:1df0b61d3b5a 198 0xFFFF)
Michael J. Spencer 2:1df0b61d3b5a 199 #endif /* DEBUG */
Michael J. Spencer 2:1df0b61d3b5a 200 #endif /* CHECKSUM_USE_CPP */
Michael J. Spencer 2:1df0b61d3b5a 201
Michael J. Spencer 2:1df0b61d3b5a 202 #endif /* _CHECKSUM_MACRO_H_ */