99718a8b7a
* src/math.c (greater_p): Fix INT_MAX > 0.
(less_p): Fix INT_MIN < 0.
* tests/math.test ("< INT-MIN"): Test it.
("< INT-MAX"):
("> INT-MAX"):
("> INT-MAX 0"):
("> INT-MIN"):
* tests/srfi-13.test ("string->number INT-MAX"): Test it.
("string->number INT-MIN"):
("number->string INT-MAX"):
("number->string INT-MIN"):
* scaffold/tests/60-math.c (test): Test it.
177 lines
3.1 KiB
C
177 lines
3.1 KiB
C
/* -*-comment-start: "//";comment-end:""-*-
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* Mes --- Maxwell Equations of Software
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* Copyright © 2017 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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*
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* This file is part of Mes.
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*
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* Mes is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* Mes is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Mes. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <limits.h>
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#include <stdio.h>
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#include <string.h>
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#include "30-test.i"
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int
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add (int a, int b)
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{
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return a + b;
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}
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int
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inc (int i)
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{
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return i + 1;
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}
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int
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test ()
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{
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int i;
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puts ("\n");
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puts ("t: 0 < 0\n");
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if (0 < 0) return 1;
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puts ("t: 2 < 1\n");
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if (2 < 1) return 2;
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puts ("t: -1 < -2\n");
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if (-1 < -2) return 3;
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puts ("t: 0 < -1\n");
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if (0 < -1) return 4;
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puts ("t: 0 > 0\n");
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if (0 > 0) return 5;
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puts ("t: 1 > 2\n");
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if (1 > 2) return 6;
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puts ("t: -2 > -1\n");
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if (-2 > -1) return 7;
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puts ("t: -1 > 0\n");
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if (-1 > 0) return 9;
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puts ("t: 1 == inc (0)\n");
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if (1 == inc (0)) goto ok0;
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return 10;
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ok0:
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puts ("t: 0 < inc (0)\n");
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if (0 < inc (0)) goto ok1;
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return 11;
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ok1:
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puts ("t: inc (0) + 2 != 3\n");
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if (inc (0) + inc (1) != 3) return 12;
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puts ("t: 4/2=");
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i = 4 / 2;
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if (i!=2) return 13;
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i += 48;
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putchar (i);
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puts ("\n");
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puts ("t: 3*4=\n");
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i = 3 * 4;
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if (i!=12) return 14;
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puts ("t: i /= 4\n");
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i /= 4;
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if (i!=3) return 15;
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puts ("t: i *= 4\n");
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i *= 4;
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if (i!=12) return 16;
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puts ("t: 1 << 3\n");
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if (1 << 3 != 8) return 1 << 3;
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puts ("t: 3 << 4\n");
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if (3 << 4 != 48) return 3 << 4;
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puts ("t: 48 >> 3\n");
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if (48 >> 4 != 3) return 48 >> 4;
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puts ("t: 10 >> 1\n");
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if (10 >> 1 != 5) return 10 >> 1;
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puts ("t: 1 | 4\n");
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if ((1 | 4) != 5) return 1 | 4;
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i = -3;
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puts ("t: -i\n");
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if (-i != 3) return 22;
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puts ("t: -1 + 2\n");
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if (-1 + 2 != 1) return 23;
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puts ("t: 1 & 3\n");
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if ((1 & 3) != 1) return 24;
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puts ("t: ~0\n");
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if (~0 != -1) return 25;
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puts ("t: 1 | 3\n");
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if ((1 | 2) != 3) return 26;
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puts ("t: ^ 1 \n");
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if ((1 ^ 3) != 2) return 27;
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puts ("t: 3 == 3\n");
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if ((3 == 3) != 1) return 28;
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puts ("t: 3 != 3\n");
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if ((3 != 3) != 0) return 29;
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puts ("t: 011 == 15\n");
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if (011 != 9) return 30;
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puts ("t: 0b11 == 3\n");
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if (0b11 != 3) return 31;
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puts ("t: 0x11 == 3\n");
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if (0x11 != 17) return 32;
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puts ("t: i = INT_MAX\n");
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i = INT_MAX;
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if (strcmp ("2147483647", itoa (i)))
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return 33;
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puts ("t: i = 2147483646\n");
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i = 2147483646;
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puts ("t: i++\n");
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i++;
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puts ("t: i = INT_MIN\n");
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i = INT_MIN;
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if (strcmp ("-2147483648", itoa (i)))
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return 34;
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puts ("t: i = -2147483647\n");
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i = -2147483647;
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puts ("t: i--\n");
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i--;
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return 0;
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}
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