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Replace strcmp with strstr.

I'm afraid it's too generalized. You should try to cut your code down to the smallest, compilable example that demonstrates the problem. This process, while probably painful, might reveal the problem. It seems likely that the function you're calling is doing something that you don't realize...

You need to allocate memory for a inside polyfit: double* polyfit(double* x,double* y,long order,long n) { double *a = malloc(sizeof *a); ... ... return a; }

Assuming you're on a Windows platform, see: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/gdi/prntspol_62ia.asp

Here's a basic program that uses Curl and reads the body into a buffer. Hope it helps. #include <assert.h> #include <stdio.h> #include <stdlib.h> #include <curl/curl.h> static unsigned char *body; static size_t body_size; static size_t body_capacity; #define INIT_BODY_SIZE 1024 size_t...

I've never had a problem with not initializing everything, even when the codebase becomes as large as you mention. I don't personally think that the trade-off of changing a declaration to file scope (which reduces program integrity and tends to increase bugs as the variable can now be modified...

It's certainly debatable if an initialization constitutes &quot;good programming practice&quot; in all instances, particularly if that initialization constitutes a hit on runtime performance.

Why would he need memset there?

The closest you can come is to use multiple case statements and take advantage of &quot;fall-through&quot;: case 'T': case 'V': case 'K': /* do something */ break; If you don't plan on modifying the contents of proddir, you can do what rwb suggested and change proddir to a pointer and...

Incidentally, if %n weren't specified by the C standard (it is, as manvid points out), we don't know how printf will behave when encountering it. The implementation might provide a meaning for it or it might not. Your program might conceivably crash if you pass printf an unrecognized conversion...

Easy: You could store each person retrieved in an array and then do a linear search or binary search on the array to retrieve it (for the latter, you would have to keep the array sorted). Your framework could be something like this: #define MAXNAME 50 #define MAXPERSONS 100 struct person {...

If you want to be careful not to offend anyone, you might try &quot;Hey you all&quot; or &quot;Hey y'all&quot;. :)

You're right in that you can use vectorname.size() inside the conditional, rather than assign it to a variable and then test the variable in the condition. I believe in most of the examples the author creates a typedef and uses that typedef in two or more cases throughout the program, so that...

I use int *pint; Only because this has become the de facto convention. Neither one is inherently better.

I'll admit that my earlier comments did constitute a &quot;casual review&quot; and I retract my statements comparing rot13 to butthead's algorithm. I glanced over the code, without taking note that a key was being used and thought that it amounted to simple letter substitution. My apologies to...

You asked me to decipher the message using rot13, so I did, but it still doesn't make any sense to me.

Okay... qsI^[$k:o\[r15U|C_!Q]SlUvT*T,j%*&F2ho)L@70u+d ?K]mJk*c!@%iq#i(J2@e93!7?]s'( <4IRLb|C%aSfWwGVP2u I'm afraid I don't see your point.

atoll isn't part of C89, but is part of C99 (the new C standard). However, most C compilers are C89 compilers and therefore may not provide atoll. See the compiler documentation and see the linker options mentioned in the diagnostic. If your compiler doesn't provide it, there may be atoll...

Thanks guys :)

No offense, but you'll want to use something else unless you're satisfied with the cryptographic strength of rot13.