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snprintf and Visual Studio 2010
...g.h>
#else
#include <cstdarg>
extern "C"
{
#endif
#define insane_free(ptr) { free(ptr); ptr = 0; }
int vasprintf(char **strp, const char *fmt, va_list ap);
int asprintf(char **strp, const char *fmt, ...);
#ifdef __cplusplus
}
#endif
#endif
asprintf.c:
#include "asprintf.h"
int aspri...
Reason to Pass a Pointer by Reference in C++?
...ternal data buffer and read/write to it, but it cannot – for example – free that buffer using delete or rebind that pointer to some other place in memory? Or did I get it wrong?
– BarbaraKwarc
Aug 4 '16 at 1:09
...
What modern C++ libraries should be in my toolbox? [closed]
...
Cross-platform libraries that are free for commercial (or non-commercial) applications
Feel free to expand this list
General Purpose
Boost
Loki
MiLi
POCO
STL (of course)
STXXL (STL re-implementation for extra large data sets)
Qt
ASL
JUCE
Audio
FM...
Why can't C++ be parsed with a LR(1) parser?
...tween the two potential parses. But a parser
that does this isn't context free, and LR parsers
(the pure ones, etc.) are (at best) context free.
One can cheat, and add per-rule reduction-time semantic checks in the
to LR parsers to do this disambiguation. (This code often isn't simple). Most o...
libevent+protobuf轻松搭建tcpserver - C/C++ - 清泛网 - 专注C/C++及内核技术
...nt_t*)opaque;
if (client->data && strlen(client->data) != 0)
free(client->data);
client->data = NULL;
client->total_len = 0;
client->cur_size = 0;
}
void buffer_on_error(struct bufferevent *ev_buf, short what, void *opqaue)
{
// 给出错误信息
pision_c...
When should I use the new keyword in C++?
...
Method 1 (using new)
Allocates memory for the object on the free store (This is frequently the same thing as the heap)
Requires you to explicitly delete your object later. (If you don't delete it, you could create a memory leak)
Memory stays allocated until you delete it. (i.e. you...
Best/Most Comprehensive API for Stocks/Financial Data [closed]
What is the most recommended free/public API for accessing financial market stats and stock quotes (preferrably real-time quotes)? I'm not too picky about how it's exposed (SOAP, REST, some proprietary XML setup, etc.), as long as it's got some decent documentation.
...
Do I use , , or for SVG files?
...ml#SVG_in_HTML
If you use <object> then you get raster fallback for free*:
<object data="your.svg" type="image/svg+xml">
<img src="yourfallback.jpg" />
</object>
*) Well, not quite for free, because some browsers download both resources, see Larry's suggestion below for...
Converting Select results into Insert script - SQL Server [closed]
...
SSMS Toolpack (which is FREE as in beer) has a variety of great features - including generating INSERT statements from tables.
Update: for SQL Server Management Studio 2012 (and newer), SSMS Toolpack is no longer free, but requires a modest licensi...
strdup() - what does it do in C?
... string(c) and return the new address (which the caller is responsible for freeing at some point).
Keep in mind that's the conceptual definition. Any library writer worth their salary may have provided heavily optimised code targeting the particular processor being used.
(a) However, functions ...