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utils-std

Collection of commonly available Unix tools git clone https://anongit.hacktivis.me/git/utils-std.git/

t_humanize.c (1909B)

    

  1. // utils-std: Collection of commonly available Unix tools
  2. // SPDX-FileCopyrightText: 2017 Haelwenn (lanodan) Monnier <contact+utils@hacktivis.me>
  3. // SPDX-License-Identifier: MPL-2.0
  5. #define _POSIX_C_SOURCE 200809L
  6. #include "../lib/humanize.h"
  8. #include <assert.h>
  9. #include <stdio.h> // printf
  11. const char *argv0 = "t_humanize";
  12. int counter = 0;
  13. int err = 0;
  15. static void
  16. t_dtosi(double in, bool iec, double out, unsigned exponent)
  17. {
  18. 	int id = ++counter;
  20. 	struct si_scale ret = dtosi(in, iec);
  22. 	if(ret.number == out && ret.exponent == exponent)
  23. 	{
  24. 		printf("ok %d - dtosi(%f, %d) => {.number = %g, .exponent = %d}\n",
  25. 		       id,
  26. 		       in,
  27. 		       iec,
  28. 		       ret.number,
  29. 		       ret.exponent);
  30. 		return;
  31. 	}
  33. 	err = 1;
  34. 	printf("not ok %d - dtosi(%f, %d) => {.number = %g, .exponent = %d}\n",
  35. 	       id,
  36. 	       in,
  37. 	       iec,
  38. 	       ret.number,
  39. 	       ret.exponent);
  40. 	printf("# Expected: {.number = %g, .exponent = %d}\n", out, exponent);
  41. }
  43. int
  44. main(void)
  45. {
  46. 	int plan = 18;
  47. 	printf("1..%d\n", plan);
  49. 	t_dtosi(0, false, 0, 0);
  50. 	t_dtosi(0, true, 0, 0);
  52. 	t_dtosi(1000, false, 1000, 0);
  53. 	t_dtosi(10000, false, 10, 1);
  55. 	t_dtosi(-1000, false, -1000, 0);
  56. 	t_dtosi(-10000, false, -10, 1);
  58. 	t_dtosi(1024, true, 1024, 0);
  59. 	t_dtosi(10240, true, 10240 / 1024, 1);
  61. 	t_dtosi(-1024, true, -1024, 0);
  62. 	t_dtosi(-10240, true, -10240 / 1024, 1);
  64. #define IEC_QiB 1267650600228229401496703205376.0 /* 1024^10 */
  65. 	t_dtosi(1024 * IEC_QiB, true, 1024, 10);
  66. 	t_dtosi(-1024 * IEC_QiB, true, -1024, 10);
  67. 	t_dtosi(1024 * 1024 * IEC_QiB, true, 1024 * 1024, 10);
  68. 	t_dtosi(-1024 * 1024 * IEC_QiB, true, -1024 * 1024, 10);
  70. #define SI_Q 1000000000000000000000000000000.0 /* 1000^10 */
  71. 	t_dtosi(1000 * SI_Q, false, 1000, 10);
  72. 	t_dtosi(-1000 * SI_Q, false, -1000, 10);
  73. 	t_dtosi(1000 * 1000 * SI_Q, false, 1000 * 1000, 10);
  74. 	t_dtosi(-1000 * 1000 * SI_Q, false, -1000 * 1000, 10);
  76. 	assert(counter == plan);
  77. 	return err;
  78. }