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What is a good Hash Function?
...l, with an order of magnitude more collisions than we want. In particular, strings that differ only in the last 4 bytes can collide easily. If you have a 30 character string, that differ in the last 4 bytes, after 28 bytes have been processes, the hashes differ only in the last 2 bytes. That means y...
Do I cast the result of malloc?
...that pesky stdlib.h is the REAL important thing to remember!"
It forces an extra cognitive cross-check. It puts the (alleged) desired type right next to the arithmetic you're doing for the raw size of that variable. I bet you could do an SO study that shows that malloc() bugs are caught much faster ...
How do you reverse a string in place in C or C++?
How do you reverse a string in C or C++ without requiring a separate buffer to hold the reversed string?
30 Answers
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How to turn on (literally) ALL of GCC's warnings?
...ode that has a different meaning (or doesn't work) in traditional C, e.g. "string " "concatenation", or ISO C function definitions! Do you really care about compatibility with 30 year old compilers? Do you really want a warning for writing int inc(int i) { return i+1; } ?
I think -Weffc++ is too n...
Java: parse int value from a char
... know if there's a better solution to parse a number from a character in a string (assuming that we know that the character at index n is a number).
...
TLSF源码及算法介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...*/
#ifndef USE_PRINTF
#define USE_PRINTF (1)
#endif
#include <string.h>
#ifndef TLSF_USE_LOCKS
#define TLSF_USE_LOCKS (0)
#endif
#ifndef TLSF_STATISTIC
#define TLSF_STATISTIC (0)
#endif
#ifndef USE_MMAP
#define USE_MMAP (0)
#endif
#ifndef USE_SBRK
#define USE_SBRK ...
How to create a SQL Server function to “join” multiple rows from a subquery into a single delimited
...
Note that Matt's code will result in an extra comma at the end of the string; using COALESCE (or ISNULL for that matter) as shown in the link in Lance's post uses a similar method but doesn't leave you with an extra comma to remove. For the sake of completeness, here's the relevant code from L...
urlencode vs rawurlencode?
...f I want to create a URL using a variable I have two choices to encode the string. urlencode() and rawurlencode() .
11 A...
Remove portion of a string after a certain character
I'm just wondering how I could remove everything after a certain substring in PHP
15 Answers
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Passing variable number of arguments around
...t and use that va_list in your second function. Specifically;
void format_string(char *fmt,va_list argptr, char *formatted_string);
void debug_print(int dbg_lvl, char *fmt, ...)
{
char formatted_string[MAX_FMT_SIZE];
va_list argptr;
va_start(argptr,fmt);
format_string(fmt, argptr, forma...