Revert "Initial commit - work done up through 11 Feb 2020"

This reverts commit 2bc7401904.
This commit is contained in:
Gitea 2020-02-11 23:21:47 -06:00
parent 2bc7401904
commit 56f77cf071
27 changed files with 0 additions and 478 deletions

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@ -1,107 +0,0 @@
#include <limits.h>
#include <stdbool.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
static bool print(const char * str, size_t len) {
const unsigned char * bytes = (const unsigned char *) str;
for(size_t i = 0; i < len; i++) {
if(putchar(bytes[i]) == EOF) {
return false;
}
}
return true;
}
int printf(const char * restrict format, ...) {
va_list parameters;
va_start(parameters, format);
int written = 0;
while(*format != '\0') {
size_t maxrem = INT_MAX - written;
if(format[0] != '%' || format[1] == '%') {
if(format[0] == '%') {
format++;
}
size_t amount = 1;
while(format[amount] && format[amount] != '%') {
amount++;
}
if(maxrem < amount) {
/* TODO: Set errno to EOVERFLOW after implementing errno.h */
return -1;
}
if(!print(format, amount)) {
return -1;
}
format += amount;
written += amount;
continue;
}
const char * format_begun_at = format++;
/* TODO: Implement all format specifiers (%g, %o, &c.) */
if(*format == 'c') {
format++;
char c = (char) va_arg(parameters, int);
if(!maxrem) {
/* TODO: Set errno to EOVERFLOW after implementing errno.h */
return -1;
}
if(!print(&c, sizeof(c))) {
return -1;
}
written++;
}
else if(*format == 's') {
format++;
const char * str = va_arg(parameters, const char *);
size_t len = strlen(str);
if(maxrem < len) {
/* TODO: Set errno to EOVERFLOW after implementing errno.h */
return -1;
}
if(!print(str, len)) {
return -1;
}
written += len;
}
else {
format = format_begun_at;
size_t len = strlen(format);
if(maxrem < len) {
/* TODO: Set errno to EOVERFLOW after implementing errno.h */
return -1;
}
if(!print(format, len)) {
return -1;
}
format += len;
}
}
va_end(parameters);
return(written);
}

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@ -1,6 +0,0 @@
stdio/printf.libk.o: stdio/printf.c \
/usr/home/helmsulfrinn/opt/cross/lib/gcc/i686-elf/9.2.0/include-fixed/limits.h \
/usr/home/helmsulfrinn/opt/cross/lib/gcc/i686-elf/9.2.0/include/stdbool.h \
/usr/home/helmsulfrinn/opt/cross/lib/gcc/i686-elf/9.2.0/include/stdarg.h \
include/stdio.h include/sys/cdefs.h include/string.h \
/usr/home/helmsulfrinn/opt/cross/lib/gcc/i686-elf/9.2.0/include/stddef.h

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@ -1,16 +0,0 @@
#include <stdio.h>
#ifdef __is_libk
#include <kernel/tty.h>
#endif
int putchar(int ic) {
#ifdef __is_libk
char c = (char) ic;
term_write(&c, sizeof(c));
#else
/* TODO: Implement write system call to do this part */
#endif
return ic;
}

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@ -1,3 +0,0 @@
stdio/putchar.libk.o: stdio/putchar.c include/stdio.h include/sys/cdefs.h \
/home/helmsulfrinn/Documents/projects/coding/active/fenix/sysroot/usr/include/kernel/tty.h \
/usr/home/helmsulfrinn/opt/cross/lib/gcc/i686-elf/9.2.0/include/stddef.h

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@ -1,5 +0,0 @@
#include <stdio.h>
int puts(const char * string) {
return printf("%s\n", string);
}

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@ -1 +0,0 @@
stdio/puts.libk.o: stdio/puts.c include/stdio.h include/sys/cdefs.h