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Full Discussion: Unclear pointer and array
Top Forums Programming Unclear pointer and array Post 302884190 by yifangt on Saturday 18th of January 2014 08:32:17 AM
Old 01-18-2014
Thanks.
Does your code waste some memory for a if you have
Code:
#define IOBufLen        100

for the print out line:
Code:
printf("substring = \"%s\"\n", substring(start, end, text, a, IOBufLen));

as a is only the substring of text? In another way,
Code:
strncpy(text, argv[1], IOBufLen - 1); // -1 to be sure text is null terminated.

does this line always allocate 100 bytes to text even text is only 10 char long?
I am concerned if to process 100 millions of lines (my sequences).

Last edited by yifangt; 01-18-2014 at 09:50 AM..
 

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set_color(1)							       fish							      set_color(1)

NAME
set_color - set_color - set the terminal color set_color - set the terminal color Synopsis set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR] Description Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple, cyan, white and normal. o -b, --background Set the background color o -c, --print-colors Prints a list of all valid color names o -h, --help Display help message and exit o -o, --bold Set bold or extra bright mode o -u, --underline Set underlined mode o -v, --version Display version and exit Calling set_color normal will set the terminal color to whatever is the default color of the terminal. Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey font color, while set_color --bold white will result in a white font color. Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator. set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of ncurses and recompile fish against it in order to fix this issue. Version 1.23.1 Sun Jan 8 2012 set_color(1)
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