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  1. #include <stdio.h>
  2. #include <string.h> // For strlen
  3.  
  4. int main() {
  5.     char *s1 = "Hello";                           // Length 5
  6.     char *s2 = "This is a 43 character string exactly long."; // Length 43
  7.     char *s3 = "This is a very very very long string that will be truncated at 43 characters."; // Length 80
  8.  
  9.     printf("'%s' (len %zu)\n", s1, strlen(s1));
  10.     printf("'%s' (len %zu)\n", s2, strlen(s2));
  11.     printf("'%s' (len %zu)\n", s3, strlen(s3));
  12.     printf("---\n");
  13.  
  14.     printf("'%s'\n", s1);
  15.     printf("Formatted: '%-43.43s'\n", s1); // Original len 5 -> "Hello" + 38 spaces
  16.  
  17.     printf("Formatted: '%-43.43s'\n", s2); // Original len 43 -> "This is a 43 character string exactly long."
  18.                                            // No truncation, no padding
  19.  
  20.     printf("Formatted: '%-43.43s'\n", s3); // Original len 80 -> "This is a very very very long string t"
  21.                                            // Truncated to 43 chars, no padding
  22.     printf("---\n");
  23.     printf("Example with a 10 char string:\n");
  24.     printf("'%s'\n", "1234567890");
  25.     printf("Formatted: '%-43.43s'\n", "1234567890"); // "1234567890" + 33 spaces
  26.     return 0;
  27. }
Success #stdin #stdout 0s 5320KB
comments (?)
stdin
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Standard input is empty
stdout
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'Hello' (len 5)
'This is a 43 character string exactly long.' (len 43)
'This is a very very very long string that will be truncated at 43 characters.' (len 77)
---
'Hello'
Formatted: 'Hello                                      '
Formatted: 'This is a 43 character string exactly long.'
Formatted: 'This is a very very very long string that w'
---
Example with a 10 char string:
'1234567890'
Formatted: '1234567890                                 '
https://ideone.com/nxexH2
language:
C (gcc 8.3)
created:
10 days ago
visibility:
public

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