Description:
Discussion about C.
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Printing with fprintf on Win XP
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I'm trying to print to a LaserJet P1006 plugged into a USB port with this: ...int main(int argc, char *argv[]) { FILE *p; int tmp; p = fopen("USB001", "w"); tmp = fprintf(p, "Sample\n"); if (tmp == EOF) puts("EOF"); else printf("Return: %d.\n", tmp); return 0; ...tmp == 7 which is gratifying, but nothing comes out of the printer... more »
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Profiling and generating call graphs
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I'm trying to use the wonderful [1] gprof2dot to generate graphs of function calls. And I think I'm missing something because I don't get all the possible calls and the percent of time used. I added all the possible options found like gcc -pg -g (when compiling) And for gprof and gprof2dot gprof --static-call-graph -m 0 $PROG | $GPROF2DOT -e0.01 -n0.01... more »
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Bounds Checking as Undefined Behaviour?
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Does the following code imply undefined behaviour? int main(void) { union { char bar[1]; char baz[2]; } foo; foo.baz[0] = 'z'; foo.baz[1] = 'z'; foo.bar[0] = 'r'; return foo.bar[1]; /* Undefined behaviour for O.O.B. */ ...I don't believe it does, since I believe that 'foo.bar' "decays" to a... more »
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Macro function syntax
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I have a macro function that's like the following: int function2(int*,int,int,int); ...int x[100],i; \ for(i=0;i<c;i++) x[i] = something(a,b,c); \ function2(x,a,b,c); \ ...where "something" is a mathematical expression of a,b and c, and "function2" is a function returning int. Calls like: xyz(1,2,3);... more »
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128 bit integer
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Hi all, How to program 128 bit integer in C language ? Thank you.
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converting string to hex
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Hi, I need to convert the following string in hex format : "11173339460123456709498765432 1" which should result in "16907B2A24ABC16A2E5C004B1". (resulting hex string) Thank you for any help.
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The Miracle and Challenge of the Quran
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The Miracle and Challenge of the Quran ------------------------------ ------------------------------ ------------------ [link] [link] ------------------------------ ------------------------------ ----------------------------- -------------------------... more »
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GHD IV Kiss - Pink Hair Straighteners Limited Edition
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Although there can be many reasons for the cause of hair loss in women, there is one in particular that is most common, and it’s also the most treatable. The cause of hair loss in women can be temporary like after pregnancy, during illness or a very stressful time, but the usual one is a hormonal imbalance.... more »
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zlib.h
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Hi everyone, I would like to compress some data, in practice some ip packets that have to be compressed and then sent chunked and sent over the network. I've seen zlib.h and it looks nice, but I have some trouble understanding how ti works. I tried to understand the zpipe example and modified for me and I got... more »
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C decompiler/disassembler?
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I recently downloaded a program (*.EXE) written in C, and I discovered it had a few bugs. The original author of the program is apparently unreachable, so I figure it falls on me to try and crack into the program and fix the bugs. Does anyone know of a good C decompiler or disassembler I can use to do this, that will read an EXE program as... more »
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