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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <string.h>
  4. #include "stdint.h"
  5.  
  6.  
  7. uint32_t strtoint (char * str);
  8. double stringtof (char * s);
  9.  
  10. int main()
  11. {
  12.  
  13.    printf("decimal value : %0.2lu\n" ,strtoint("salam=123456789") );
  14.    printf("float value : %7.2f\n" ,stringtof("salam=12.5sdd") );
  15.  
  16. }
  17.  
  18. uint32_t strtoint (char * s)
  19. {
  20.  
  21.     int i=0,j,k=0;
  22.     int llen=0;
  23.  
  24.  
  25.  
  26.     llen=strlen(s);
  27.     for(i =0;i<llen;i++)
  28.     {
  29.       if(isdigit(s[i])==1)
  30.       {
  31.        break;
  32.       }
  33.     }
  34.  
  35.     char str2[llen-i];
  36.  
  37. for (j=i;j<llen;j++)
  38.     {
  39.     str2[k]=s[j];
  40.     k++;
  41.     }
  42.     return (atoi(str2));
  43. }
  44.  
  45.  
  46.  
  47.  
  48. double stringtof (char * s)
  49. {
  50.      int i=0,j,k=0;
  51.     int llen=0;
  52.  
  53.  
  54.  
  55.     llen=strlen(s);
  56.     for(i =0;i<llen;i++)
  57.     {
  58.       if(isdigit(s[i])==1)
  59.       {
  60.        break;
  61.       }
  62.     }
  63.  
  64.     char str2[llen-i];
  65.  
  66. for (j=i;j<llen;j++)
  67.     {
  68.     str2[k]=s[j];
  69.     k++;
  70.     }
  71.    // * val=atof(str2);
  72. return (atof(str2));
  73. }
  74.  
Success #stdin #stdout 0s 4828KB
comments (?)
stdin
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Standard input is empty
stdout
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decimal value : 123456789
float value :   12.50
https://ideone.com/UhjEXn
language:
C (gcc 8.3)
created:
4 years ago
visibility:
public

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