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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <string.h>
  4.  
  5. static inline int onerror(char **result){
  6. 	*result = malloc(6);
  7. 	strcpy(*result, "error");
  8. 	return 0;
  9. }
  10.  
  11. int addStringAtoB(char string[], char **result){
  12. 	static const char *delimiter = " ,";
  13. 	char *token = strtok( string, delimiter);
  14.  
  15. 	if (token == NULL)
  16. 		return onerror(result);
  17.  
  18. 	char *stringA = token;
  19.  
  20. 	token = strtok( NULL, delimiter);
  21. 	if (token == NULL)
  22. 		return onerror(result);
  23.  
  24. 	char *stringB = token;
  25. 	char *endp;
  26. 	int valA = strtol(stringA, &endp, 10);
  27. 	if(*endp != '\0')
  28. 		return onerror(result);
  29. 	int valB = strtol(stringB, &endp, 10);
  30. 	if(*endp != '\0')
  31. 		return onerror(result);
  32.  
  33. 	int val_result = valA + valB;
  34. 	int len = snprintf(NULL, 0, "%d", val_result) + 1;
  35. 	*result = malloc(len);
  36. 	snprintf(*result,len , "%d", val_result);
  37. 	return 1;
  38. }
  39.  
  40. void test(void) {
  41. 	char A[] = "123,563";
  42. 	char *result = NULL;
  43. 	addStringAtoB(A, &result);
  44. 	printf("\n result :----- %s \n", result);
  45. 	free(result);
  46. }
  47.  
  48. int main(void){
  49. 	test();
  50. }
Success #stdin #stdout 0s 2300KB
comments (?)
stdin 
Standard input is empty
stdout 
 result :----- 686
https://ideone.com/BYik11
language:
C99 (gcc 8.3)
created:
9 years ago
visibility:
public

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