| ??? 10/14/08 12:13 Read: times |
#159040 - How many bytes will be written ?? |
Maybe a simple query for most of you...
I have a printf() as below : ( sorry its a bit long one ;-) printf("%02.2d/%02.2d/%02.2d %02.2d:%02.2d:%02.2d\t%04ld\t%04ld\t%04ld\t%04ld\t%04ld\r\n",RTCmonth[x],RTCday[x],RTCyear[x],RTChr[x],RTCmin[x],RTCsec[x],Temp[x],Humi[x],V1[x],V2[x],VBat[x]); And following are the data types : int8 RTCmonth[DATABUFFER]; int8 RTCday[DATABUFFER]; int8 RTCyear[DATABUFFER]; int8 RTChr[DATABUFFER]; int8 RTCmin[DATABUFFER]; int8 RTCsec[DATABUFFER]; int16 V1[DATABUFFER]; int16 V2[DATABUFFER]; int16 VBat[DATABUFFER]; int16 Temp[DATABUFFER]; int16 Humi[DATABUFFER]; What I need to know is how many bytes will be sent to an UART as a result of the above printf() ? I am writing the data into a USB Flash through a Vinculum chip. Just prior to calling the FileWrite function I need to load the exact number of bytes that will be written. I am not sure how printf() handles tab instructions ? Right now I have, by trial and error, found out the number of bytes to be 44 and it works. But any change to the format is a problem unless I know how to calculate the number of bytes. Thanks Raghu |
| Topic | Author | Date |
| How many bytes will be written ?? | 01/01/70 00:00 | |
| return value? | 01/01/70 00:00 | |
| OT: That's why you should never use TABs! | 01/01/70 00:00 | |
| go ahead and use tabs | 01/01/70 00:00 | |
| No, don't! | 01/01/70 00:00 | |
| Any programmers editor | 01/01/70 00:00 | |
| insert spaces for TABs | 01/01/70 00:00 | |
| Oh Yes ... the sprintf()... | 01/01/70 00:00 | |
| So here we go | 01/01/70 00:00 | |
| Wrong! | 01/01/70 00:00 | |
| Valid warnings. But... | 01/01/70 00:00 | |
| No buts! | 01/01/70 00:00 | |
| maintability and engineering | 01/01/70 00:00 | |
| Not entirely true? | 01/01/70 00:00 | |
| You are correct | 01/01/70 00:00 | |
| Good example of counting dangers | 01/01/70 00:00 | |
Good interaction. | 01/01/70 00:00 |