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  1. #include <stdio.h>
  2. #include <string.h>
  3. #include <stdint.h>
  4. #include <stddef.h>
  5.  
  6. #define LIBKODIK_PARAMS_TYPES_START 7           /* Длина начала параматра в строке `type=` */
  7. #define LIBKODIK_PARAMS_TYPES_NO_VALUE 42       /* Позиция в строке, если парамерт необходимо удалить полностью */
  8. #define LIBKODIK_PARAMS_TYPES_MAX 12            /* Максимально возможное кол-во параметров для type=... */
  9. #define LIBKODIK_PARAMS_PRINTF_LENGTH_STRING 3  /* Размер `%s,` */
  10.  
  11. void
  12. libkodik_api_countries_param_types_remove_unusable_values(char *psz_value, uint8_t i_count) {
  13.     size_t const s_strlen = strlen(psz_value);
  14.     char buffer[s_strlen];
  15.     (void) strcpy(buffer, psz_value);
  16.     if (0 == i_count) { /* Кол-во параметров равно нулю? Просто срезает от и до */
  17.         (void) memcpy
  18.         (
  19.             psz_value,
  20.             &buffer[LIBKODIK_PARAMS_TYPES_NO_VALUE],
  21.             s_strlen - LIBKODIK_PARAMS_TYPES_NO_VALUE + 1
  22.         );
  23.         return;
  24.     }
  25.     (void) memmove
  26.     (
  27.         &psz_value[LIBKODIK_PARAMS_TYPES_START],
  28.         &buffer[LIBKODIK_PARAMS_TYPES_START] + (LIBKODIK_PARAMS_PRINTF_LENGTH_STRING * (LIBKODIK_PARAMS_TYPES_MAX - i_count)),
  29.         s_strlen - (LIBKODIK_PARAMS_PRINTF_LENGTH_STRING * (LIBKODIK_PARAMS_TYPES_MAX - i_count) + 1)
  30.     );
  31. }
  32.  
  33. int main(void) {
  34. 	char buffer_flags[] = "types=%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s&year=%lu&translation_id=%lu&translation_type=%s&sort=%s";
  35. 	char buffer_flags2[] = "types=%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s&year=%lu&translation_id=%lu&translation_type=%s&sort=%s";
  36.     uint8_t i_flags_count = 4;
  37.     if (12 != i_flags_count) {
  38.         libkodik_api_countries_param_types_remove_unusable_values(buffer_flags, i_flags_count);
  39.     }
  40.     printf("Changed:   %s\n", 	buffer_flags);
  41.     printf("Original:  %s\n",	"types=%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s&year=%lu&translation_id=%lu&translation_type=%s&sort=%s");
  42.     i_flags_count = 0;
  43.     if (12 != i_flags_count) {
  44.         libkodik_api_countries_param_types_remove_unusable_values(buffer_flags2, i_flags_count);
  45.     }
  46.     printf("Changed2:  %s\n", 	buffer_flags2);
  47.     printf("Original2: %s\n",	"types=%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s&year=%lu&translation_id=%lu&translation_type=%s&sort=%s");
  48. 	return 0;
  49. }
  50.  
Success #stdin #stdout 0s 4328KB
comments (?)
stdin 
Standard input is empty
stdout 
Changed:   types=%s,%s,%s,%s&year=%lu&translation_id=%lu&translation_type=%s&sort=%s
Original:  types=%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s&year=%lu&translation_id=%lu&translation_type=%s&sort=%s
Changed2:  year=%lu&translation_id=%lu&translation_type=%s&sort=%s
Original2: types=%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s&year=%lu&translation_id=%lu&translation_type=%s&sort=%s
https://ideone.com/i3wWl8
language:
C (gcc 8.3)
created:
5 years ago
visibility:
public

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