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/* nasmlib.c header file for nasmlib.h
*
* The Netwide Assembler is copyright (C) 1996 Simon Tatham and
* Julian Hall. All rights reserved. The software is
* redistributable under the licence given in the file "Licence"
* distributed in the NASM archive.
*/
#ifndef NASM_NASMLIB_H
#define NASM_NASMLIB_H
/*
* Wrappers around malloc, realloc and free. nasm_malloc will
* fatal-error and die rather than return NULL; nasm_realloc will
* do likewise, and will also guarantee to work right on being
* passed a NULL pointer; nasm_free will do nothing if it is passed
* a NULL pointer.
*/
void nasm_set_malloc_error (efunc);
void *nasm_malloc (size_t);
void *nasm_realloc (void *, size_t);
void nasm_free (void *);
char *nasm_strdup (char *);
/*
* ANSI doesn't guarantee the presence of `stricmp' or
* `strcasecmp'.
*/
int nasm_stricmp (char *, char *);
int nasm_strnicmp (char *, char *, int);
/*
* Convert a string into a number, using NASM number rules. Sets
* `*error' to TRUE if an error occurs, and FALSE otherwise.
*/
long readnum(char *str, int *error);
/*
* seg_init: Initialise the segment-number allocator.
* seg_alloc: allocate a hitherto unused segment number.
*/
void seg_init(void);
long seg_alloc(void);
/*
* many output formats will be able to make use of this: a standard
* function to add an extension to the name of the input file
*/
void standard_extension (char *inname, char *outname, char *extension,
efunc error);
/*
* some handy macros that will probably be of use in more than one
* output format: convert integers into little-endian byte packed
* format in memory
*/
#define WRITELONG(p,v) \
do { \
*(p)++ = (v) & 0xFF; \
*(p)++ = ((v) >> 8) & 0xFF; \
*(p)++ = ((v) >> 16) & 0xFF; \
*(p)++ = ((v) >> 24) & 0xFF; \
} while (0)
#define WRITESHORT(p,v) \
do { \
*(p)++ = (v) & 0xFF; \
*(p)++ = ((v) >> 8) & 0xFF; \
} while (0)
/*
* and routines to do the same thing to a file
*/
void fwriteshort (int data, FILE *fp);
void fwritelong (long data, FILE *fp);
/*
* Routines to manage a dynamic random access array of longs which
* may grow in size to be more than the largest single malloc'able
* chunk.
*/
struct RAA;
struct RAA *raa_init (void);
void raa_free (struct RAA *);
long raa_read (struct RAA *, long);
struct RAA *raa_write (struct RAA *r, long posn, long value);
/*
* Routines to manage a dynamic sequential-access array, under the
* same restriction on maximum mallocable block. This array may be
* written to in two ways: a contiguous chunk can be reserved of a
* given size, and a pointer returned, or single-byte data may be
* written. The array can also be read back in the same two ways:
* as a series of big byte-data blocks or as a list of structures
* of a given size.
*/
struct SAA;
struct SAA *saa_init (long elem_len); /* 1 == byte */
void saa_free (struct SAA *);
void *saa_wstruct (struct SAA *); /* return a structure of elem_len */
void saa_wbytes (struct SAA *, void *, long); /* write arbitrary bytes */
void saa_rewind (struct SAA *); /* for reading from beginning */
void *saa_rstruct (struct SAA *); /* return NULL on EOA */
void *saa_rbytes (struct SAA *, long *); /* return 0 on EOA */
void saa_rnbytes (struct SAA *, void *, long); /* read a given no. of bytes */
void saa_fread (struct SAA *s, long posn, void *p, long len); /* fixup */
void saa_fwrite (struct SAA *s, long posn, void *p, long len); /* fixup */
void saa_fpwrite (struct SAA *, FILE *);
#endif
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