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CARM Introduction Compiling Programs Language Extensions Preprocessor Advanced Programming Error Messages 
Library Reference Library Files 
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 AppendixSource Code
Source code is provided (in the \KEIL\ARM\LIB folder) for the following library routines:
| Library Routine | Filename | Description |
|---|---|---|
| calloc | calloc.c | Allocates memory for an array of elements. |
| free | free.c | Releases memory allocated with calloc, malloc, or realloc. |
| _getkey | getkey.c | Waits for a character to be received from the serial port. |
| init_mempool | init_mem.c | Initializes the memory pool used by the calloc, free, malloc, and realloc routines. |
| malloc | malloc.c | Allocates a memory block from the memory pool. |
| putchar | putchar.c | Transmits a character using the serial port. |
| realloc | realloc.c | Changes the size of a previously allocated memory block. |
You may modify these routines and substitute them for the default routines stored in the library.
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