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Source Code Standard Types div_t jmp_buf ldiv_t ptrdiff_t size_t va_list wchar_t Routines By Category Buffer Manipulation Routines Character Routines Data Conversion Routines Math Routines Memory Allocation Routines Stream I/O Routines String Routines Variable Length Argument Routines Miscellaneous Routines Include Files SFR Definitions assert.h ctype.h float.h inttypes.h limits.h math.h setjmp.h stdarg.h stddef.h stdio.h stdlib.h string.h Reference _chkdouble_ _chkfloat_ _getkey _tolower _toupper abs acos asin assert atan atan2 atof atoi atol calloc ceil cos cosh div exp fabs floor fmod free getchar gets init_mempool isalnum isalpha iscntrl isdigit isgraph islower isprint ispunct isspace isupper isxdigit labs ldiv log log10 longjmp malloc memccpy memchr memcmp memcpy memmove memset modf offsetof pow printf putchar puts rand realloc scanf setjmp sin sinh sprintf sqrt srand sscanf strcat strchr strcmp strcpy strcspn strlen strncat strncmp strncpy strpbrk strpos strrchr strrpbrk strrpos strspn strtod strtol strtoul tan tanh toascii toint tolower toupper ungetchar va_arg va_end va_start vprintf vsprintf Appendixmalloc
| Summary | #include <stdlib.h> void *malloc ( unsigned int size); /* block size to allocate */ |
| Description | The malloc function allocates a memory block from the memory pool of size bytes in length. Note
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| Return Value | The malloc function returns a pointer to the allocated block or a null pointer if there is not enough memory to satisfy the allocation request. |
| See Also | |
| Example |
#include <stdlib.h>
#include <stdio.h> /* for printf */
void tst_malloc (void) {
unsigned char *p;
p = malloc (1000); /* allocate 1000 bytes */
if (p == 0)
printf ("Not enough memory space\n");
else
printf ("Memory allocated\n");
}
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