size_type is meant to hold an unsigned integral. That's about it. There's no other assumption made.
This number must be big enough to hold the maximum number of characters a string can hold.
Since a string maximum lenght is machine/implementation dependant, the size_type companion type was created (as a typedef) to support machine-independant behavior. It can be an int, a long, the number of extra-marital kids the library implementator had at that time.
Originally Posted by brewbuck:
Reimplementing a large system in another language to get a 25% performance boost is nonsense. It would be cheaper to just get a computer which is 25% faster.
i still got errors on my compiler. btw, i'm using turbo c++ v.3. maybe it's just my compiler.
Well Turbo C++ 3.0 is about fourteen years old, so yeah, maybe it is.Originally Posted by painkiller05
System: Debian Sid and FreeBSD 7.0. Both with GCC 4.3.
Useful resources:
comp.lang.c FAQ | C++ FQA Lite
Just get the good-old dev.
Thanks for that info, Mario. Always informative! ... "the number of extra-marital kids the library implementator had at that time." .... right
Last edited by twomers; 09-02-2006 at 09:41 AM.
That's the way I would do it!
Originally Posted by brewbuck:
Reimplementing a large system in another language to get a 25% performance boost is nonsense. It would be cheaper to just get a computer which is 25% faster.
Dev-C++ -- it's not fourteen years old
Code:#include <stdio.h> void J(char*a){int f,i=0,c='1';for(;a[i]!='0';++i)if(i==81){ puts(a);return;}for(;c<='9';++c){for(f=0;f<9;++f)if(a[i-i%27+i%9 /3*3+f/3*9+f%3]==c||a[i%9+f*9]==c||a[i-i%9+f]==c)goto e;a[i]=c;J(a);a[i] ='0';e:;}}int main(int c,char**v){int t=0;if(c>1){for(;v[1][ t];++t);if(t==81){J(v[1]);return 0;}}puts("sudoku [0-9]{81}");return 1;}
in turbo C I think you have to use STRNG.h because string is already taken for strlen(), strcpy etc. I think.
