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Full Discussion: fgets problems
Top Forums Programming fgets problems Post 302396135 by CRGreathouse on Wednesday 17th of February 2010 09:41:57 PM
Old 02-17-2010
Quote:
Originally Posted by Corona688
That is not the minimal code to crash it... it works absolutely fine.
I was afraid of that. This is part of a huge project, so I tried to extract what I could to make it fail without involving too much complexity. In particular, the actual code is using the Pari library.

Quote:
Originally Posted by Corona688
The crash is probably in some destructor somewhere. Or it may be that you've already corrupted the heap by the time you've started calling fread, maybe with that pari_sp object? Try getting it down to a really minimal program that still crashes.
Working on it. The pari_sp isn't actually doing anything at the moment (it was going to be a part of the garbage collection process) so I know that's not it.
 

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ppmtopgm(1)						      General Commands Manual						       ppmtopgm(1)

NAME
ppmtopgm - convert a portable pixmap into a portable graymap SYNOPSIS
ppmtopgm [ppmfile] DESCRIPTION
Reads a portable pixmap as input. Produces a portable graymap as output. The output is a "black and white" rendering of the original image, as in a black and white photograph. The quantization formula used is .299 r + .587 g + .114 b. Note that although there is a pgmtoppm program, it is not necessary for simple conversions from pgm to ppm , because any ppm program can read pgm (and pbm ) files automatically. pgmtoppm is for colorizing a pgm file. Also, see ppmtorgb3 for a different way of converting color to gray. And ppmdist generates a grayscale image from a color image, but in a way that makes it easy to differentiate the original colors, not necessarily a way that looks like a black and white photograph. QUOTE
Cold-hearted orb that rules the night Removes the colors from our sight Red is gray, and yellow white But we decide which is right And which is a quantization error. SEE ALSO
pgmtoppm(1),ppmtorgb3(1),rgb3toppm(1),ppmdist(1),ppm(5),pgm(5) AUTHOR
Copyright (C) 1989 by Jef Poskanzer. 10 April 2000 ppmtopgm(1)
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