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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <string.h>
  4.  
  5. int main(void) {
  6.         char  buffer[256];
  7.         printf("enter an integer:");
  8.         scanf("%255s",buffer);
  9.  
  10.         char  valueStr[256];
  11.         sprintf(valueStr,"%d", atoi(buffer));
  12.         if(strcmp(valueStr,buffer)==0)
  13.                 printf("'%s' is an integer\n",buffer);
  14.         else
  15.                 printf("'%s' isn't an integer\n", buffer);
  16.  
  17.         return 0;
  18. }
  19.  
Success #stdin #stdout 0s 4440KB
comments (?)
stdin
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5.00
stdout
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enter an integer:'5.00' isn't an integer
https://ideone.com/ryRaWa
language:
C (gcc 8.3)
created:
5 years ago
visibility:
public

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