pen_strdup (0.17.1) speed up

The length of the string is calculated twice, once by strlen and once (by implication of
looking for the NUL terminator) by strcpy.

Better to calculated it once and remember:

*** Open.c 2007-08-27 08:53:40.000000000 +0100
--- pen.c 2007-08-27 08:55:50.000000000 +0100
***************
*** 241,248 ****
  
  static char *pen_strdup(char *p)
  {
! char *b = pen_malloc(strlen(p)+1);
! return strcpy(b, p);
  }
  
  static int pen_strncasecmp(const char *p, const char *q, size_t n)
--- 241,254 ----
  
  static char *pen_strdup(char *p)
  {
! size_t len = strlen(p);
! char *b = pen_malloc(len + 1);
!
! if(b) {
! memcpy(b, p, len);
! b[len] = '\0';
! }
! return b;
  }
  
  static int pen_strncasecmp(const char *p, const char *q, size_t n)

-- 
Nigel Horne. Adjudicator, Arranger, Band Trainer, Composer, Tutor, Typesetter.
NJH Music, Barnsley, UK.  ICQ#20252325
njh@bandsman.co.uk http://www.bandsman.co.uk