Is it possible to use float precision to print digits before the decimal? If so, how? If not, is there another way to print the following output using float precision?

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Example: Create a printf statement that uses float precision to print the following output: 3.21.

What I have tried:

How to use float precision to print digits before decimal?

Posted 3-Oct-22 6:19am

Member 15018472

Updated 3-Oct-22 6:32am

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0x01AA · Answer 1 · 2022-10-03T06:27:00

Solution 1

'Left pad' with '0':

printf("%07.3f", 3.3);

results in '003.300'

'Left pad' with space:

printf("%7.3f", 3.3);

results in ' 3.300'

Simply googled, try i also ;)

Posted 3-Oct-22 6:27am

0x01AA

Comments

CPallini 3-Oct-22 16:05pm

5.

0x01AA 4-Oct-22 3:49am

Thank you.

Richard MacCutchan · Answer 2 · 2022-10-03T06:31:00

Solution 2

It's all explained in the documentation: Format Specification Syntax: `printf` and `wprintf` Functions | Microsoft Learn[^].

Posted 3-Oct-22 6:31am

Richard MacCutchan

Comments

CPallini 3-Oct-22 16:05pm

5.

Richard MacCutchan 3-Oct-22 16:14pm

Thanks, easy to find with Google.

k5054 · Answer 3 · 2022-10-03T06:32:00

Take a look at the printf documentation printf, fprintf, sprintf, snprintf, printf_s, fprintf_s, sprintf_s, snprintf_s - cppreference.com[^]
In particular pay attention to the width and precision specifiers. In particular, the width determines the minimum width of the printed field, and precision specifies the number of places after the decimal to display. Note that the width includes the decimal point and the leading sign.