Left-pad printf with spaces

Question

How can I pad a string with spaces on the left when using printf   For example  I want to print  Hello  with 40 spaces preceding it   Also  the string I want to print consists of multiple lines   Do I need to print each line separately   EDIT  Just to be clear  I want exactly 40 spaces printed before every line

User · Answer

If you want exactly 40 spaces before the string then you should just do:

printf("                                        %s\n", myStr );

If that is too dirty, you can do (but it will be slower than manually typing the 40 spaces): printf("%40s%s", "", myStr );

If you want the string to be lined up at column 40 (that is, have up to 39 spaces proceeding it such that the right most character is in column 40) then do this: printf("%40s", myStr);

You can also put "up to" 40 spaces AfTER the string by doing: printf("%-40s", myStr);

User · Answer

I use this function to indent my output  for example to print a tree structure   The indent is the number of spaces before the string   void print with indent int indent  char   string        printf    s s   indent      string

User · Answer

If you want exactly 40 spaces before the string then you should just do:

printf("                                        %s\n", myStr );

If that is too dirty, you can do (but it will be slower than manually typing the 40 spaces): printf("%40s%s", "", myStr );

If you want the string to be lined up at column 40 (that is, have up to 39 spaces proceeding it such that the right most character is in column 40) then do this: printf("%40s", myStr);

You can also put "up to" 40 spaces AfTER the string by doing: printf("%-40s", myStr);

User · Answer

int space   40  printf    s   space   Hello      This statement will reserve a row of 40 characters  print string at the end of the row  removing extra spaces such that the total row length is constant at 40   Same can be used for characters and integers as follows   printf    d   space  10   printf    c   space   x      This method using a parameter to determine spaces is useful where a variable number of spaces is required  These statements will still work with integer literals as follows   printf    d   10  10   printf    c   20   x    printf    s   30   Hello      Hope this helps someone like me in future

User · Answer

If you want the word  Hello  to print in a column that s 40 characters wide  with spaces padding the left  use the following   char  ptr    Hello   printf   40s n   ptr     That will give you 35 spaces  then the word  Hello    This is how you format stuff when you know how wide you want the column  but the data changes  well  it s one way you can do it    If you know you want exactly 40 spaces then some text  just save the 40 spaces in a constant and print them   If you need to print multiple lines  either use multiple printf statements like the one above  or do it in a loop  changing the value of ptr each time

User · Answer

If you want exactly 40 spaces before the string then you should just do:

printf("                                        %s\n", myStr );

If that is too dirty, you can do (but it will be slower than manually typing the 40 spaces): printf("%40s%s", "", myStr );

If you want the string to be lined up at column 40 (that is, have up to 39 spaces proceeding it such that the right most character is in column 40) then do this: printf("%40s", myStr);

You can also put "up to" 40 spaces AfTER the string by doing: printf("%-40s", myStr);

User · Answer

If you want the word  Hello  to print in a column that s 40 characters wide  with spaces padding the left  use the following   char  ptr    Hello   printf   40s n   ptr     That will give you 35 spaces  then the word  Hello    This is how you format stuff when you know how wide you want the column  but the data changes  well  it s one way you can do it    If you know you want exactly 40 spaces then some text  just save the 40 spaces in a constant and print them   If you need to print multiple lines  either use multiple printf statements like the one above  or do it in a loop  changing the value of ptr each time

User · Answer

If you want exactly 40 spaces before the string then you should just do:

printf("                                        %s\n", myStr );

If that is too dirty, you can do (but it will be slower than manually typing the 40 spaces): printf("%40s%s", "", myStr );

If you want the string to be lined up at column 40 (that is, have up to 39 spaces proceeding it such that the right most character is in column 40) then do this: printf("%40s", myStr);

You can also put "up to" 40 spaces AfTER the string by doing: printf("%-40s", myStr);

User · Answer

If you want the word  Hello  to print in a column that s 40 characters wide  with spaces padding the left  use the following   char  ptr    Hello   printf   40s n   ptr     That will give you 35 spaces  then the word  Hello    This is how you format stuff when you know how wide you want the column  but the data changes  well  it s one way you can do it    If you know you want exactly 40 spaces then some text  just save the 40 spaces in a constant and print them   If you need to print multiple lines  either use multiple printf statements like the one above  or do it in a loop  changing the value of ptr each time

User · Answer

I use this function to indent my output  for example to print a tree structure   The indent is the number of spaces before the string   void print with indent int indent  char   string        printf    s s   indent      string

User · Answer

int space   40  printf    s   space   Hello      This statement will reserve a row of 40 characters  print string at the end of the row  removing extra spaces such that the total row length is constant at 40   Same can be used for characters and integers as follows   printf    d   space  10   printf    c   space   x      This method using a parameter to determine spaces is useful where a variable number of spaces is required  These statements will still work with integer literals as follows   printf    d   10  10   printf    c   20   x    printf    s   30   Hello      Hope this helps someone like me in future

User · Answer

If you want the word  Hello  to print in a column that s 40 characters wide  with spaces padding the left  use the following   char  ptr    Hello   printf   40s n   ptr     That will give you 35 spaces  then the word  Hello    This is how you format stuff when you know how wide you want the column  but the data changes  well  it s one way you can do it    If you know you want exactly 40 spaces then some text  just save the 40 spaces in a constant and print them   If you need to print multiple lines  either use multiple printf statements like the one above  or do it in a loop  changing the value of ptr each time

[c] Left-pad printf with spaces

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