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<TITLE>RE: [LCP]which one better?</TITLE>
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<P><FONT SIZE=2>> which one of the following is better performance wise.</FONT>
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<P><FONT SIZE=2>Depends on your libc.</FONT>
<BR><FONT SIZE=2>Probably the isspace one: it usually is just a lookup in a boolean</FONT>
<BR><FONT SIZE=2>table, 256 bytes, going to be quite fast as it's a short loop and</FONT>
<BR><FONT SIZE=2>everything will be in cache after the first hit.</FONT>
<BR><FONT SIZE=2>If using wchar_t, however, isspace might be a complex thingie</FONT>
<BR><FONT SIZE=2>testing for different locales and considering various characters</FONT>
<BR><FONT SIZE=2>differently depending on locale.</FONT>
<BR><FONT SIZE=2>If you want an even faster one, you might be able to do so with</FONT>
<BR><FONT SIZE=2>a non ASCII encoding for your characters, and be able to test for</FONT>
<BR><FONT SIZE=2>spaceness four chars at a time (for 32 bit word size) - though it</FONT>
<BR><FONT SIZE=2>would probably be only faster for lots of spaces at start of line.</FONT>
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<P><FONT SIZE=2>-- </FONT>
<BR><FONT SIZE=2>Vincent Penquerc'h </FONT>
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