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Re: malloc 14 Years Ago by Aranarth malloc(500) Re: malloc, free 13 Years Ago by Narue malloc() and free() are declared in <stdlib.h>, you failed to include that header. Re: malloc functions 13 Years Ago by hkdani … to typecast a pointer to an integer pointer to what malloc expects to be a pointer to a variable of whatever…., then [B]HeapAlloc[/B] will be more forgiving than [B]malloc.[/B] Re: malloc problem. 14 Years Ago by jonsca malloc sets aside a block of memory, it does nothing to … Re: malloc, calloc and realloc 13 Years Ago by cse.avinash … are for dynaminc allocation in memory. basic differences are in malloc() single parameter is passed which is only the size of… of blocks to be taken and another one is size. malloc() initializes garbage value as a default while calloc() has zero… Re: malloc, calloc and realloc 17 Years Ago by plgriffith malloc returns a block of memory that is allocated for the programmer to use, but is uninitialized. calloc allocates memory and then initializes it. realloc is used to grow or shrink a block of memory. Re: malloc, calloc and realloc 13 Years Ago by Bhushan2987 malloc returns the blocks in random way(dynamic) calloc returns the blocks in sequencial way means one after another realloc is used to minimise already allocated memory blocks or maximize the same Re: malloc vs calloc 11 Years Ago by deceptikon > malloc() is a pre-defined function which is available in <alloc.h>. `stdlib.h`. `alloc.h` is ancient and non-standardized. Unless you copied that information from a hideously outdated source, I'd recommend updating your knowledge of C. A *lot* of things have changed since Turbo C, including best practice. Re: malloc 14 Years Ago by sabareesh if(bRangeValid == TRUE) { // pszReplace is malloc array // function calling pszReplace = StrReplaceString(*ppszLine,…_mbstrlen(pszReplace); // free(ppszLine); this is also a malloc array error come here i wnat ot remoce this … malloc 16 Years Ago by bobrien314 I have this assignment to write my own malloc program and I am having some trouble. I am using … Re: malloc 16 Years Ago by bobrien314 sorry, Idk what you mean by code tags, comments??? but i need to use sbrk because i am writing my own malloc, my problem is that i am trying to add 18 to a pointer which i know returns 502048h, but when adding the the 2 it returns 502240 malloc 14 Years Ago by sabareesh I created a dyanamic array through malloc() function. (size is 1024) next time i want to change buffersize as 500 . how can do this? Re: malloc 14 Years Ago by sabareesh … the buffer before using realloc if(bRangeValid == TRUE) { // pszReplace is malloc array // function calling pszReplace = StrReplaceString(*ppszLine, pCmdList->szFirstArgument, pCmdList… malloc(); in C [Short tutorial] 15 Years Ago by lionaneesh … my very short tutorial explaining basic uses of "malloc" function in C language. [NOTE : You… for lets get started.. [B][U]About Malloc[/U][/B] Malloc() is a very powerfull function in C language…;}; char *p; /* char pointer for use with malloc() */ p = (char *)malloc(sizeof(words)); /* Explained in the following text */… Re: malloc(); in C [Short tutorial] 15 Years Ago by Salem … if on UNIX or LINUX */ This is all wrong. malloc is prototyped in stdlib.h > p = (char… *)malloc(sizeof(words)); You don't need to cast malloc in C programs. Have you tried…applying sizeof to a variable. p = malloc(sizeof words ); Other issues: - you didn't check malloc for success - you didn't describe… Re: malloc(); in C [Short tutorial] 14 Years Ago by mitrmkar [QUOTE=lionaneesh;1214245] [B][U]About Malloc[/U][/B] Malloc() is ... [/QUOTE] It is malloc (not Malloc). [QUOTE] [B][U]References[/U][/B] No references guyz ... Only one my "brain" .. LOL.. [/QUOTE] You can find the current draft standard here .. [url]http://www.open-std.org/JTC1/SC22/WG14/www/docs/n1256.pdf[/url] malloc error checking methods 9 Years Ago by COKEDUDE …quot;Error! memory not allocated."); exit(1); } res = malloc(strlen(str1) + strlen(str2) + 1); if (!res) {…; } char* allocCharBuffer(size_t numberOfChars) { char *ptr = (char *)malloc(sizeof(char) * numberOfChars); if (ptr == NULL) { fprintf(stderr… Re: malloc(); in C [Short tutorial] 14 Years Ago by jephthah …" button. especially with something as critical as malloc(). improper/sloppy use of malloc() is the source of very many problems in… Re: malloc(); in C [Short tutorial] 14 Years Ago by gerard4143 [QUOTE=Salem;1214254] The parentheses are optional when applying sizeof to a variable. p = malloc(sizeof words ); [/QUOTE] Now I didn't know that. I guess that's why I keep coming back. Re: malloc(); in C [Short tutorial] 14 Years Ago by koved [QUOTE]char words[]={"Hey this is a simple tutorial on malloc\n"};[/QUOTE] i think it shoud end with \0 or nothing is required over there Re: malloc error checking methods 9 Years Ago by deceptikon …, you don't need to cast the return value of `malloc`. In fact, doing so can hide legitimate errors such as…. > I have seen a few different ways of doing malloc error checking? Is one way better than the other? As… Re: malloc() and free(): segmentation fault unavoidable? 18 Years Ago by Ancient Dragon … will always be correct. [url]http://c-faq.com/malloc/sizeofchar.html[/url][/QUOTE] from your own link [quote]…sizeof(char) is, by definition, exactly 1.[/quote] [inlinecode]p = malloc ( number * sizeof(char) );[/inlinecode] is the same thing as …are aware of this but others may not) with using malloc(), of course, is that when the value of [b… Re: malloc error checking methods 9 Years Ago by Soft_1 When you identify a blunder with malloc(), calloc() and realloc() (i.e they give back a NULL … malloc() and free(): segmentation fault unavoidable? 18 Years Ago by tehloki …for part 2 */ char ** createStringArray(int num) { char **stringPtr = malloc(num * sizeof(char *)); return stringPtr; } void setStringArray(char ** stringPtr, …int position, char * setstring) { stringPtr[position] = malloc(strlen(setstring) * sizeof(char)); strcpy (stringPtr[position], setstring); } char *… Re: malloc, calloc and realloc 13 Years Ago by Narue … size_t size) { size_t total = count * size; void *mem = malloc(total); if (mem != NULL) memset(mem, 0, total); return mem…return NULL; } else if (p == NULL) { return malloc(size); } else { void *new = malloc(size); if (new != NULL) { memcpy(new, p, … malloc, free 13 Years Ago by lastbencher …*pi; float f, *pf; pi = (int *) malloc(sizeof(int)); pf = (float *) malloc(sizeof(float)); *pi = 1024; *pf = 3.14… gives the following error: [B]malloc.c: In function ‘main’: malloc.c:6:15: warning: incompatible …implicit declaration of built-in function ‘malloc’ malloc.c:11:2: warning: incompatible implicit declaration … Re: malloc does not allocate beyond 65872 15 Years Ago by AutoC …didn't include stdlib.h and thus the compiler considers malloc as returning an int rather than a pointer? >…allocate beyond 65872. > > Is this the only malloc call in your program? > Is it really an array…where the problem is */ myRIFF->data = (short int*)malloc(sizeof(short int)*size); for(i=0; i <size… malloc behaving strangely 15 Years Ago by lotrgandalf …is the code fragment: [code=c] float **t; t=(float **)malloc(sizeof(float *)*A); perror("\nError status 1:"); for…(i=0;i<600;i++) { t[i]=malloc(sizeof(float)*B); } perror("\nError Status 2:"); [/… Status 2: Not enough space I tried putting additional malloc test statements after the loop to see if I was… Re: malloc() and free(): segmentation fault unavoidable? 18 Years Ago by Salem True, but always writing malloc calls in this form [inlinecode]p = malloc ( number * sizeof *p );[/inlinecode] will ensure that the scaling for the size of object being allocated will always be correct. [url]http://c-faq.com/malloc/sizeofchar.html[/url] Re: malloc fails after 7000 to 8000 loops - available memory is 1GB 16 Years Ago by jephthah … to be either a flaw in MSVC++ or perhaps in malloc itself. I know, ive been there. but take this as… a lesson, right now, to quit using malloc in programs where the need for extended runtime is critical… and/or sloppy programmers who use malloc most often. 99% of the time i see malloc used, it is completely unnecessary and…