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formatting, strncpy

This commit is contained in:
Kamila Szewczyk 2023-10-08 18:20:19 +02:00
parent 3981746d2a
commit f10dd4afce
Signed by: Palaiologos
GPG Key ID: E34D7BADA3DACC14
7 changed files with 26 additions and 16 deletions
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2
Makefile
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@ -4,7 +4,7 @@ CFLAGS=-Ilib83 -c -mz80 --std-sdcc2x --no-std-crt0 --reserve-regs-iy --opt-code-
OBJS=_crt0.rel clrscr.rel putchar.rel puts.rel exit.rel gotoxy.rel __assert_fail.rel \
getchar.rel put_int.rel ctype.rel memcpy.rel memset.rel memmove.rel memcmp.rel \
strcpy.rel strlen.rel \
strcpy.rel strlen.rel strncpy.rel \
main.rel
.PHONY: all clean try

2
lib83/_crt0.c
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@ -3,7 +3,7 @@
extern void main();
void AppHeader() {
void _start() {
__asm
.db 0x80, 0x0F
.db 0, 0, 0, 0

2
lib83/assert.h
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@ -4,6 +4,6 @@
#define assert(expr) ((expr) ? (void) (0) : __assert_fail(#expr, __FILE__, __LINE__, __func__))
extern void __assert_fail(const char *__assertion, const char *__file, unsigned int __line, const char *__function);
extern void __assert_fail(const char * __assertion, const char * __file, unsigned int __line, const char * __function);
#endif

4
lib83/memcmp.c
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@ -4,10 +4,10 @@
int8_t memcmp(void * buf1, void * buf2, size_t count) {
if (!count) return 0;
while (--count && *(unsigned char*)buf1 == *(unsigned char*)buf2) {
while (--count && *(unsigned char *)buf1 == *(unsigned char *)buf2) {
buf1 = 1 + (unsigned char *)buf1; buf2 = 1 + (unsigned char *)buf2;
}
return *(char*)buf1 - *(char*)buf2;
return *(char *)buf1 - *(char *)buf2;
}

2
lib83/stddef.h
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@ -2,7 +2,7 @@
#ifndef _STDDEF_H
#define _STDDEF_H
#define NULL ((void *)0)
#define NULL ((void *) 0)
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;

20
lib83/string.h
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@ -4,17 +4,17 @@
#include <stddef.h>
extern void *memcpy(void *dest, const void *src, size_t n);
extern void *memset(void *s, unsigned char c, size_t n);
extern void *memmove(void *dest, const void *src, size_t n);
extern int8_t memcmp(const void *s1, const void *s2, size_t n);
extern void * memcpy(void * dest, const void * src, size_t n);
extern void * memset(void * s, unsigned char c, size_t n);
extern void * memmove(void * dest, const void * src, size_t n);
extern int8_t memcmp(const void * s1, const void * s2, size_t n);
extern char *strcpy(char *dest, const char *src);
extern char *strncpy(char *dest, const char *src, size_t n);
extern size_t strlen(const char *s);
extern int8_t strcmp(const char *s1, const char *s2);
extern int8_t strncmp(const char *s1, const char *s2, size_t n);
extern char * strcat(char *dest, const char *src);
extern char * strcpy(char * dest, const char * src);
extern char * strncpy(char * dest, const char * src, size_t n);
extern size_t strlen(const char * s);
extern int8_t strcmp(const char * s1, const char * s2);
extern int8_t strncmp(const char * s1, const char * s2, size_t n);
extern char * strcat(char * dest, const char * src);
#endif

10
lib83/strncpy.c Normal file
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@ -0,0 +1,10 @@
#include <string.h>
char * strncpy(char * d, const char * s, size_t n) {
register char * d1 = d;
while (n && *s) { n--; *d++ = *s++; }
while (n--) *d++ = '\0' ;
return d1;
}