C中的函数数组，带有void指针参数，动态分配。

huangapple
go评论93阅读模式
英文:

Array of functions in C, with void pointer argument, dinamically alocated

问题

我无法声明如何正确声明一个可以作为参数传递给get_operations函数的函数向量，然后我可以使用我之前声明的向量的组件来调用这8个函数。以下是我使用的结构和函数：

  1. void get_operations(void **operations) {
  2. 	operations[0] = tire_pressure_status;
  3. 	operations[1] = tire_temperature_status;
  4. 	operations[2] = tire_wear_level_status;
  5. 	operations[3] = tire_performance_score;
  6. 	operations[4] = pmu_compute_power;
  7. 	operations[5] = pmu_regenerate_energy;
  8. 	operations[6] = pmu_get_energy_usage;
  9. 	operations[7] = pmu_is_battery_healthy;
  10. }

请注意，这是您提供的代码段的翻译部分。

英文:

I can't declare how to properly declare a function vector that I can pass as an argument to the get_operations function, then I can call the 8 functions with the help of the components of my previously declared vector. Here is the structures I used and the functions:

  1. void get_operations(void **operations) {
  2. 	operations[0] = tire_pressure_status;
  3. 	operations[1] = tire_temperature_status;
  4. 	operations[2] = tire_wear_level_status;
  5. 	operations[3] = tire_performance_score;
  6. 	operations[4] = pmu_compute_power;
  7. 	operations[5] = pmu_regenerate_energy;
  8. 	operations[6] = pmu_get_energy_usage;
  9. 	operations[7] = pmu_is_battery_healthy;
  10. }

答案1

得分: 1

以下是您要翻译的代码部分：

  1. typedef int (*statfunc)(void *);
  3. int tire_pressure_status(void *);
  4. int tire_temperature_status(void *);
  5. int tire_wear_level_status(void *);
  6. int tire_performance_score(void *);
  8. void get_operations(void **operations) {
  9.     statfunc *vect = *operations;
  10.     vect[0] = tire_pressure_status;
  11.     vect[1] = tire_temperature_status;
  12.     vect[2] = tire_wear_level_status;
  13.     vect[3] = tire_performance_score;
  14. }
  16. int main(void) {
  17.     statfunc vector[4];
  18.     void *ptr_to_vector = vector;
  20.     get_operations(&ptr_to_vector);
  22.     vector[0](NULL);
  23.     vector[1](NULL);
  24.     vector[2](NULL);
  25.     vector[3](NULL);
  26. }
  28. int tire_pressure_status(void *) {
  29.     return printf("%s\n", __func__);
  30. }
  32. int tire_temperature_status(void *) {
  33.     return printf("%s\n", __func__);
  34. }
  36. int tire_wear_level_status(void *) {
  37.     return printf("%s\n", __func__);
  38. }
  40. int tire_performance_score(void *) {
  41.     return printf("%s\n", __func__);
  42. }

您提供的代码已经被翻译成中文，不包括不需要翻译的部分。

英文: 
  1. typedef int (*statfunc)(void *);
  3. int tire_pressure_status(void *);
  4. int tire_temperature_status(void *);
  5. int tire_wear_level_status(void *);
  6. int tire_performance_score(void *);
  8. void get_operations(void **operations) {
  9.     statfunc *vect = *operations;
  10.     vect[0] = tire_pressure_status;
  11.     vect[1] = tire_temperature_status;
  12.     vect[2] = tire_wear_level_status;
  13.     vect[3] = tire_performance_score;
  14. }
  16. int main(void)
  17. {
  18.     statfunc vector[4];
  19.     void *ptr_to_vector = vector;
  21.     get_operations(&ptr_to_vector);
  23.     vector[0](NULL);
  24.     vector[1](NULL);
  25.     vector[2](NULL);
  26.     vector[3](NULL);
  27. }
  30. int tire_pressure_status(void *)
  31. {
  32.     return printf("%s\n", __func__);
  33. }
  35. int tire_temperature_status(void *)
  36. {
  37.     return printf("%s\n", __func__);
  38. }
  40. int tire_wear_level_status(void *)
  41. {
  42.     return printf("%s\n", __func__);
  43. }
  45. int tire_performance_score(void *)
  46. {
  47.     return printf("%s\n", __func__);
  48. }

https://godbolt.org/z/1nTPKd8v1

huangapple
  • 本文由 发表于 2023年4月7日 03:12:27
  • 转载请务必保留本文链接：https://go.coder-hub.com/75952982.html
  • arrays
  • c
  • data-structures
匿名

发表评论

匿名网友

:?: :razz: :sad: :evil: :!: :smile: :oops: :grin: :eek: :shock: :???: :cool: :lol: :mad: :twisted: :roll: :wink: :idea: :arrow: :neutral: :cry: :mrgreen:

确定