Sponsored Content
Full Discussion: is this a bug of g++?
Top Forums Programming is this a bug of g++? Post 302503710 by Corona688 on Friday 11th of March 2011 11:30:30 AM
Old 03-11-2011
It sounds like the same or similar problem as scanf() in C: It throws up on bad data but doesn't actually discard the bad data.

In C the usual approach is to read strings line-by-line with fgets or getline (fgets preferred because there's some very broken getline implementations out there), then feed the line into sscanf. Whether sscanf succeeds or not, the data is out of the input stream and out of your way.

C++ doesn't have special string-only functions, it uses stringstream to make a string act like ss>>var>>var; instead. Whether reading your vars from the string succeeds or not, the data is out of cin and can't come back to haunt you.

Here's an example.
 

8 More Discussions You Might Find Interesting

1. Programming

Bug has developed

Guys there is another bug that has developed.........now messaged above 6 bytes are trimmed and echoed back to client.After the first message the echo is not regular.I have put a loop in both client and server to check for closing.Moreover for connection close i also need to put another clause that... (3 Replies)
Discussion started by: arjunjag
3 Replies

2. Post Here to Contact Site Administrators and Moderators

Have I found a bug?

When searching for new posts, I see that my voting in one of the polls counts as a 'new post'. However, while the '<blah> minutes ago' entry updates correctly, the 'by <username>' is the last user to actually post a comment in the poll instead. Result: Poll: vB Guest Book 39... (4 Replies)
Discussion started by: Smiling Dragon
4 Replies

3. UNIX for Advanced & Expert Users

logrotate bug?

I have been mailing myself logs for a while, but just ran into a problem because of a process that cannot HUP its log. (I realize thats why they implemented the "copytruncate" option in the first place) When I use logrotate with "copytruncate" and "compress" there is a problem. The "myScript"... (0 Replies)
Discussion started by: jjinno
0 Replies

4. Shell Programming and Scripting

Is it a bug ..?

Hi All, I am using Red Hat Linux on my servers. The problem that I am facing is, sometimes the /opt usage on the server shows used percentage as 100% , when actually it is simply 20%. When I reboot the system, it comes back to 20%.Is this a bug in the system or my settings have gone wrong... (1 Reply)
Discussion started by: nua7
1 Replies

5. AIX

bug in 43 ???

xxxxserver# lsattr -El inet0 | grep 255.240.0.0,32.224.0.0,32.78.120.254 | grep '.40' route net,-hopcount,1,-netmask,255.240.0.0,32.224.0.0,32.78.120.254 How this is possible? (1 Reply)
Discussion started by: itik
1 Replies

6. UNIX for Dummies Questions & Answers

where's the bug?

#!/bin/bash if then #echo "infinite loop" exit 0 fi when I run this file I get the following error: ./test_infinite_loop: line 5: syntax error near unexpected token `fi' ./test_infinite_loop: line 5: `fi' :confused: (4 Replies)
Discussion started by: jon80
4 Replies

7. Shell Programming and Scripting

How to fix this bug?

Hi gurus, I have script as below: #!/bin/ksh while : do cat /dev/null > srcfile exit_time=`TZ=GMT-20 date +%Y%m%d1950` cur_time=`date +%Y%m%d%H%M` flag=1 if ; then ... (7 Replies)
Discussion started by: ken6503
7 Replies

8. UNIX for Advanced & Expert Users

A $(( expression )) bug?

This is for the big guns... I have been modifying AudioScope.sh to bring it inline with more current practices. I hit a bug which IS not present in the original code but was after modification. Shell check first:- #!/bin/sh txt="1234567890" echo "$(( $txt ))" echo "$(( ${#txt} - 1 ))" echo... (17 Replies)
Discussion started by: wisecracker
17 Replies
voice_set_playmode(3alleg4)					  Allegro manual				       voice_set_playmode(3alleg4)

NAME
voice_set_playmode - Adjusts the loop status of the specified voice. Allegro game programming library. SYNOPSIS
#include <allegro.h> void voice_set_playmode(int voice, int playmode); DESCRIPTION
Adjusts the loop status of the specified voice. This can be done while the voice is playing, so you can start a sample in looped mode (hav- ing set the loop start and end positions to the appropriate values), and then clear the loop flag when you want to end the sound, which will cause it to continue past the loop end, play the subsequent part of the sample, and finish in the normal way. The mode parameter is a bitfield containing the following values: PLAYMODE_PLAY Plays the sample a single time. This is the default if you don't set the loop flag. PLAYMODE_LOOP Loops repeatedly through the sample, jumping back to the loop start position upon reaching the loop end. PLAYMODE_FORWARD Plays the sample from beginning to end. This is the default if you don't set the backward flag. PLAYMODE_BACKWARD Reverses the direction of the sample. If you combine this with the loop flag, the sample jumps to the loop end position upon reaching the loop start (ie. you do not need to reverse the loop start and end values when you play the sample in reverse). PLAYMODE_BIDIR When used in combination with the loop flag, causes the sample to change direction each time it reaches one of the loop points, so it alternates between playing forwards and in reverse. SEE ALSO
Allegro version 4.4.2 voice_set_playmode(3alleg4)
All times are GMT -4. The time now is 02:52 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy