Comments on: scratching my head over a c problem… http://whatstheplot.com/blog/2007/05/17/scratching-my-head-over-a-c-problem/ a plotting plotter plotted a plot at whatstheplot.com Wed, 21 Jul 2010 13:45:13 +0000 hourly 1 http://wordpress.org/?v=3.1-alpha By: Dolmen http://whatstheplot.com/blog/2007/05/17/scratching-my-head-over-a-c-problem/comment-page-1/#comment-4111 Dolmen Thu, 31 May 2007 11:52:15 +0000 http://whatstheplot.com/blog/2007/05/17/scratching-my-head-over-a-c-problem/#comment-4111 No problem with this test code under RHEL 4.3 (libc-2.3.4) on x86_64. However, for a complete test, you should also provide the content of "testfile". No problem with this test code under RHEL 4.3 (libc-2.3.4) on x86_64.
However, for a complete test, you should also provide the content of “testfile”.

]]> By: ahmedre http://whatstheplot.com/blog/2007/05/17/scratching-my-head-over-a-c-problem/comment-page-1/#comment-4107 ahmedre Tue, 29 May 2007 08:00:16 +0000 http://whatstheplot.com/blog/2007/05/17/scratching-my-head-over-a-c-problem/#comment-4107 yup, seems as though its related to which libc you compile against... one of my friends found that the tls libc breaks while the normal one doesn't - will report here if i find out anything else. yup, seems as though its related to which libc you compile against… one of my friends found that the tls libc breaks while the normal one doesn’t – will report here if i find out anything else.

]]> By: Jamal http://whatstheplot.com/blog/2007/05/17/scratching-my-head-over-a-c-problem/comment-page-1/#comment-4099 Jamal Mon, 21 May 2007 01:29:50 +0000 http://whatstheplot.com/blog/2007/05/17/scratching-my-head-over-a-c-problem/#comment-4099 Salaam, I have a prayer timing widget idea for Vista. Any ideas on how I can get access to a databse/pool of comprehensive prayer timings to cities all around the world, or at least North America? Jazak'Allah, Jamal. contact me at: jamal.saq [at] gmail.com Salaam,

I have a prayer timing widget idea for Vista. Any ideas on how I can get access to a databse/pool of comprehensive prayer timings to cities all around the world, or at least North America?

Jazak’Allah,
Jamal.

contact me at: jamal.saq [at] gmail.com

]]> By: ahmedre http://whatstheplot.com/blog/2007/05/17/scratching-my-head-over-a-c-problem/comment-page-1/#comment-4096 ahmedre Thu, 17 May 2007 08:13:06 +0000 http://whatstheplot.com/blog/2007/05/17/scratching-my-head-over-a-c-problem/#comment-4096 by the way, the output of valgrid [short version] is: <code> ==20776== Invalid read of size 2 ==20776== at 0x4B82483: getdelim (in /lib64/libc-2.5.so) ==20776== by 0x40061F: main (broken.c:7) ==20776== Address 0x0 is not stack'd, malloc'd or (recently) free'd </code> so getline calls getdelim and getdelim is broken on x86_64? by the way, the output of valgrid [short version] is:


==20776== Invalid read of size 2
==20776== at 0x4B82483: getdelim (in /lib64/libc-2.5.so)
==20776== by 0x40061F: main (broken.c:7)
==20776== Address 0x0 is not stack'd, malloc'd or (recently) free'd

so getline calls getdelim and getdelim is broken on x86_64?

]]> By: ahmedre http://whatstheplot.com/blog/2007/05/17/scratching-my-head-over-a-c-problem/comment-page-1/#comment-4095 ahmedre Thu, 17 May 2007 08:06:15 +0000 http://whatstheplot.com/blog/2007/05/17/scratching-my-head-over-a-c-problem/#comment-4095 thanks for your response - so setting tmp to NULL didn't fix it. however, malloc before calling getline results in the file pointer being preserved. seems as though maybe getline is having an issue allocating the buffer, but why? thanks for your response –
so setting tmp to NULL didn’t fix it. however, malloc before calling getline results in the file pointer being preserved. seems as though maybe getline is having an issue allocating the buffer, but why?

]]> By: reda http://whatstheplot.com/blog/2007/05/17/scratching-my-head-over-a-c-problem/comment-page-1/#comment-4094 reda Thu, 17 May 2007 07:51:11 +0000 http://whatstheplot.com/blog/2007/05/17/scratching-my-head-over-a-c-problem/#comment-4094 "now fp is: not null" i compiled your code and didn't have that problem try initializing tmp with NULL, since getline only allocates memory if the pointer is NULL... or better yet malloc it yourself and give it to getline. “now fp is: not null”
i compiled your code and didn’t have that problem

try initializing tmp with NULL, since getline only allocates memory if the pointer is NULL… or better yet malloc it yourself and give it to getline.

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