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https://github.com/c3lang/c3c.git
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352 lines
14 KiB
C
352 lines
14 KiB
C
// Copyright (c) 2021 Christoffer Lerno. All rights reserved.
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// Use of this source code is governed by the MIT license
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// a copy of which can be found in the LICENSE_STDLIB file.
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module libc;
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// stdlib
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// Constants need to be per os/arch
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const int EXIT_FAILURE = 1;
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const int EXIT_SUCCESS = 0;
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const int RAND_MAX = 0x7fffffff;
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struct DivResult
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{
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int quot;
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int rem;
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}
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struct LongDivResult
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{
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long quot;
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long rem;
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}
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fn Errno errno()
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{
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$if (env::OS_TYPE == OsType.WIN32):
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return (Errno)windows::errno();
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$elif (env::OS_TYPE == OsType.MACOSX):
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return (Errno)macos::errno();
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$elif (env::OS_TYPE == OsType.LINUX):
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return (Errno)linux::errno();
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$else:
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return errno::ENOTRECOVERABLE;
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$endif;
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}
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define TerminateFunction = fn void();
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define CompareFunction = fn int(void*, void*);
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extern fn double atof(char* str);
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extern fn int atoi(char* str);
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extern fn CLongLong atoll(char* str);
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extern fn double strtod(char* str, char** endptr);
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extern fn CLong strtol(char* str, char** endptr, int base);
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extern fn CULong stroul(char* str, char** endptr, int base);
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extern fn void abort();
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extern fn void atexit(TerminateFunction f);
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extern fn void exit(int status);
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extern fn char* getenv(char* name);
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extern fn int system(char* str);
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extern fn void bsearch(void* key, void *base, usize items, usize size, CompareFunction compare);
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extern fn void qsort(void* base, usize items, usize size, CompareFunction compare);
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extern fn int abs(int x);
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extern fn DivResult div(int numer, int denom);
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extern fn long labs(long x);
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extern fn LongDivResult ldiv(long number, long denom);
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extern fn int rand();
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extern fn void srand(uint seed);
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// MB functions omitted
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// string
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extern fn void* memchr(void* str, int c, usize n);
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extern fn int memcmp(void* str1, void* str2, usize n);
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extern fn void* memcpy(void* dest, void* src, usize n);
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extern fn void* memmove(void* dest, void* src, usize n);
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extern fn void* memset(void* dest, usize n);
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extern fn char* strcat(char* dest, char* src);
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extern fn char* strncat(char* dest, char* src, usize n);
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extern fn char* strchr(char* str, int c);
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extern fn int strcmp(char* str1, char* str2);
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extern fn int strncmp(char* str1, char* str2, usize n);
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extern fn int strcoll(char* str1, char* str2);
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extern fn char* strcpy(char* dst, char* src);
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extern fn char* strncpy(char* dst, char* src, usize n);
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extern fn usize strcspn(char* str1, char* str2);
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extern fn char* strerror(int errn);
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extern fn usize strlen(char* str);
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extern fn char* strpbrk(char* str1, char* str2);
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extern fn usize strspn(char* str1, char* str2);
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extern fn char* strstr(char* haystack, char* needle);
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extern fn char* strtok(char* str, char* delim);
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extern fn usize strxfrm(char* dest, char* src, usize n);
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// malloc
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extern fn void* malloc(usize size);
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extern fn void* calloc(usize count, usize size);
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extern fn void* free(void*);
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extern fn void* realloc(void* ptr, usize size);
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// stdio
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define Fpos = long;
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define CFile = void*;
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$switch (env::OS_TYPE):
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$case OsType.LINUX:
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extern CFile __stdin @extname("stdin");
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extern CFile __stdout @extname("stdout");
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extern CFile __stderr @extname("stderr");
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macro CFile stdin() { return __stdin; }
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macro CFile stdout() { return __stdout; }
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macro CFile stderr() { return __stderr; }
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$case OsType.MACOSX:
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extern CFile __stdinp;
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extern CFile __stdoutp;
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extern CFile __stderrp;
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macro CFile stdin() { return __stdinp; }
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macro CFile stdout() { return __stdoutp; }
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macro CFile stderr() { return __stderrp; }
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$case OsType.WIN32:
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extern fn CFile __acrt_iob_func(CInt c);
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macro CFile stdin() { return __acrt_iob_func(0); }
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macro CFile stdout() { return __acrt_iob_func(1); }
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macro CFile stderr() { return __acrt_iob_func(2); }
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$default:
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$endswitch;
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// The following needs to be set per arch+os
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// For now I have simply pulled the defaults from MacOS
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const int SEEK_SET = 0;
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const int SEEK_CUR = 1;
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const int SEEK_END = 2;
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const int _IOFBF = 0; // Fully buffered
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const int _IOLBF = 1; // Line buffered
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const int _IONBF = 2; // Unbuffered
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const int BUFSIZ = 1024;
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const int EOF = -1;
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const int FOPEN_MAX = 20;
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const int FILENAME_MAX = 1024;
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define Errno = distinct CInt;
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define SeekIndex = CLong;
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extern fn int fclose(CFile stream);
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extern fn void clearerr(CFile stream);
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extern fn int feof(CFile stream);
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extern fn int ferror(CFile stream);
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extern fn int fflush(CFile stream);
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extern fn int fgetpos(CFile stream, Fpos* pos);
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extern fn CFile fopen(char* filename, char* mode);
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extern fn usize fread(void* ptr, usize size, usize nmemb, CFile stream);
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extern fn CFile freopen(char* filename, char* mode, CFile stream);
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extern fn int fseek(CFile stream, SeekIndex offset, int whence);
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extern fn int fsetpos(CFile stream, Fpos* pos);
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extern fn SeekIndex ftell(CFile stream);
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extern fn usize fwrite(void* ptr, usize size, usize nmemb, CFile stream);
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extern fn int remove(char* filename);
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extern fn int rename(char* old_name, char* new_name);
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extern fn void rewind(CFile stream);
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extern fn void setbuf(CFile stream, char* buffer);
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extern fn void setvbuf(CFile stream, char* buffer, int mode, usize size);
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extern fn CFile tmpnam(char* str);
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extern fn int fprintf(CFile stream, char* format, ...);
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extern fn int printf(char* format, ...);
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extern fn int sprintf(char* str, char* format, ...);
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extern fn int snprintf(char* str, usize size, char* format, ...);
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extern fn int fscanf(CFile stream, char* format, ...);
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extern fn int scanf(char* format, ...);
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extern fn int sscanf(char* str, char* format, ...);
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extern fn int fgetc(CFile stream);
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extern fn char* fgets(char* str, int n, CFile stream);
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extern fn int fputc(int c, CFile stream);
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extern fn int getc(CFile stream);
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extern fn int getchar();
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extern fn int putc(char c, CFile stream);
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extern fn int putchar(int c);
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extern fn int puts(char* str);
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extern fn int ungetc(int c, CFile stream);
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extern fn void perror(char* str);
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// vsprintf vprintf not supported
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// time.h
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define TimeOffset = CLong;
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struct Tm
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{
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int tm_sec; /* seconds after the minute [0-60] */
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int tm_min; /* minutes after the hour [0-59] */
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int tm_hour; /* hours since midnight [0-23] */
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int tm_mday; /* day of the month [1-31] */
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int tm_mon; /* months since January [0-11] */
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int tm_year; /* years since 1900 */
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int tm_wday; /* days since Sunday [0-6] */
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int tm_yday; /* days since January 1 [0-365] */
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int tm_isdst; /* Daylight Savings Time flag */
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TimeOffset tm_gmtoff; /* offset from UTC in seconds */
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char *tm_zone; /* timezone abbreviation */
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}
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// Likely wrong, must be per platform.
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const CLOCKS_PER_SEC = 1000000;
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// Time also needs to be per platform
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define Time = long;
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define Clock = ulong;
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extern fn char* asctime(Tm *timeptr);
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extern fn Clock clock();
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extern fn char* ctime(Time *timer);
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extern fn double difftime(Time time1, Time time2);
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extern fn Tm* gmtime(Time *timer);
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extern fn Tm* localtime(Time *timer);
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extern fn Time mktime(Tm *timeptr);
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extern fn usize strftime(char* str, usize maxsize, char* format, Tm *timeptr);
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extern fn Time time(Time *timer);
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// signal
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define SignalFunction = fn void(int);
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extern fn SignalFunction signal(int sig, SignalFunction function);
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// Incomplete
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module libc::errno;
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const Errno EPERM = 1; /* Operation not permitted */
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const Errno ENOENT = 2; /* No such file or directory */
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const Errno ESRCH = 3; /* No such process */
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const Errno EINTR = 4; /* Interrupted system call */
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const Errno EIO = 5; /* I/O error */
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const Errno ENXIO = 6; /* No such device or address */
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const Errno E2BIG = 7; /* Argument list too long */
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const Errno ENOEXEC = 8; /* Exec format error */
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const Errno EBADF = 9; /* Bad file number */
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const Errno ECHILD = 10; /* No child processes */
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const Errno EAGAIN = 11; /* Try again */
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const Errno ENOMEM = 12; /* Out of memory */
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const Errno EACCES = 13; /* Permission denied */
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const Errno EFAULT = 14; /* Bad address */
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const Errno ENOTBLK = 15; /* Block device required */
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const Errno EBUSY = 16; /* Device or resource busy */
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const Errno EEXIST = 17; /* File exists */
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const Errno EXDEV = 18; /* Cross-device link */
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const Errno ENODEV = 19; /* No such device */
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const Errno ENOTDIR = 20; /* Not a directory */
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const Errno EISDIR = 21; /* Is a directory */
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const Errno EINVAL = 22; /* Invalid argument */
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const Errno ENFILE = 23; /* File table overflow */
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const Errno EMFILE = 24; /* Too many open files */
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const Errno ENOTTY = 25; /* Not a typewriter */
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const Errno ETXTBSY = 26; /* Text file busy */
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const Errno EFBIG = 27; /* File too large */
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const Errno ENOSPC = 28; /* No space left on device */
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const Errno ESPIPE = 29; /* Illegal seek */
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const Errno EROFS = 30; /* Read-only file system */
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const Errno EMLINK = 31; /* Too many links */
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const Errno EPIPE = 32; /* Broken pipe */
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const Errno EDOM = 33; /* Math argument out of domain of func */
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const Errno ERANGE = 34; /* Math result not representable */
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const Errno EDEADLK = 35; /* Resource deadlock would occur */
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const Errno ENAMETOOLONG = 36; /* File name too long */
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const Errno ENOLCK = 37; /* No record locks available */
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const Errno ENOSYS = 38; /* Function not implemented */
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const Errno ENOTEMPTY = 39; /* Directory not empty */
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const Errno ELOOP = 40; /* Too many symbolic links encountered */
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const Errno ENOMSG = 42; /* No message of desired type */
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const Errno EIDRM = 43; /* Identifier removed */
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const Errno ECHRNG = 44; /* Channel number out of range */
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const Errno EL2NSYNC = 45; /* Level 2 not synchronized */
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const Errno EL3HLT = 46; /* Level 3 halted */
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const Errno EL3RST = 47; /* Level 3 reset */
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const Errno ELNRNG = 48; /* Link number out of range */
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const Errno EUNATCH = 49; /* Protocol driver not attached */
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const Errno ENOCSI = 50; /* No CSI structure available */
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const Errno EL2HLT = 51; /* Level 2 halted */
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const Errno EBADE = 52; /* Invalid exchange */
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const Errno EBADR = 53; /* Invalid request descriptor */
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const Errno EXFULL = 54; /* Exchange full */
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const Errno ENOANO = 55; /* No anode */
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const Errno EBADRQC = 56; /* Invalid request code */
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const Errno EBADSLT = 57; /* Invalid slot */
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const Errno EBFONT = 59; /* Bad font file format */
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const Errno ENOSTR = 60; /* Device not a stream */
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const Errno ENODATA = 61; /* No data available */
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const Errno ETIME = 62; /* Timer expired */
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const Errno ENOSR = 63; /* Out of streams resources */
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const Errno ENONET = 64; /* Machine is not on the network */
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const Errno ENOPKG = 65; /* Package not installed */
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const Errno EREMOTE = 66; /* Object is remote */
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const Errno ENOLINK = 67; /* Link has been severed */
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const Errno EADV = 68; /* Advertise error */
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const Errno ESRMNT = 69; /* Srmount error */
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const Errno ECOMM = 70; /* Communication error on send */
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const Errno EPROTO = 71; /* Protocol error */
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const Errno EMULTIHOP = 72; /* Multihop attempted */
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const Errno EDOTDOT = 73; /* RFS specific error */
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const Errno EBADMSG = 74; /* Not a data message */
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const Errno EOVERFLOW = 75; /* Value too large for defined data type */
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const Errno ENOTUNIQ = 76; /* Name not unique on network */
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const Errno EBADFD = 77; /* File descriptor in bad state */
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const Errno EREMCHG = 78; /* Remote address changed */
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const Errno ELIBACC = 79; /* Can not access a needed shared library */
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const Errno ELIBBAD = 80; /* Accessing a corrupted shared library */
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const Errno ELIBSCN = 81; /* .lib section in a.out corrupted */
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const Errno ELIBMAX = 82; /* Attempting to link in too many shared libraries */
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const Errno ELIBEXEC = 83; /* Cannot exec a shared library directly */
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const Errno EILSEQ = 84; /* Illegal byte sequence */
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const Errno ERESTART = 85; /* Interrupted system call should be restarted */
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const Errno ESTRPIPE = 86; /* Streams pipe error */
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const Errno EUSERS = 87; /* Too many users */
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const Errno ENOTSOCK = 88; /* Socket operation on non-socket */
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const Errno EDESTADDRREQ = 89; /* Destination address required */
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const Errno EMSGSIZE = 90; /* Message too long */
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const Errno EPROTOTYPE = 91; /* Protocol wrong type for socket */
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const Errno ENOPROTOOPT = 92; /* Protocol not available */
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const Errno EPROTONOSUPPORT = 93; /* Protocol not supported */
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const Errno ESOCKTNOSUPPORT = 94; /* Socket type not supported */
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const Errno EOPNOTSUPP = 95; /* Operation not supported on transport endpoint */
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const Errno EPFNOSUPPORT = 96; /* Protocol family not supported */
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const Errno EAFNOSUPPORT = 97; /* Address family not supported by protocol */
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const Errno EADDRINUSE = 98; /* Address already in use */
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const Errno EADDRNOTAVAIL = 99; /* Cannot assign requested address */
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const Errno ENETDOWN = 100; /* Network is down */
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const Errno ENETUNREACH = 101; /* Network is unreachable */
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const Errno ENETRESET = 102; /* Network dropped connection because of reset */
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const Errno ECONNABORTED = 103; /* Software caused connection abort */
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const Errno ECONNRESET = 104; /* Connection reset by peer */
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const Errno ENOBUFS = 105; /* No buffer space available */
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const Errno EISCONN = 106; /* Transport endpoint is already connected */
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const Errno ENOTCONN = 107; /* Transport endpoint is not connected */
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const Errno ESHUTDOWN = 108; /* Cannot send after transport endpoint shutdown */
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const Errno ETOOMANYREFS = 109; /* Too many references: cannot splice */
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const Errno ETIMEDOUT = 110; /* Connection timed out */
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const Errno ECONNREFUSED = 111; /* Connection refused */
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const Errno EHOSTDOWN = 112; /* Host is down */
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const Errno EHOSTUNREACH = 113; /* No route to host */
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const Errno EALREADY = 114; /* Operation already in progress */
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const Errno EINPROGRESS = 115; /* Operation now in progress */
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const Errno ESTALE = 116; /* Stale NFS file handle */
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const Errno EUCLEAN = 117; /* Structure needs cleaning */
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const Errno ENOTNAM = 118; /* Not a XENIX named type file */
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const Errno ENAVAIL = 119; /* No XENIX semaphores available */
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const Errno EISNAM = 120; /* Is a named type file */
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const Errno EREMOTEIO = 121; /* Remote I/O error */
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const Errno EDQUOT = 122; /* Quota exceeded */
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const Errno ENOMEDIUM = 123; /* No medium found */
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const Errno EMEDIUMTYPE = 124; /* Wrong medium type */
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const Errno ECANCELED = 125; /* Operation Canceled */
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const Errno ENOKEY = 126; /* Required key not available */
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const Errno EKEYEXPIRED = 127; /* Key has expired */
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const Errno EKEYREVOKED = 128; /* Key has been revoked */
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const Errno EKEYREJECTED = 129; /* Key was rejected by service */
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const Errno EOWNERDEAD = 130; /* Owner died */
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const Errno ENOTRECOVERABLE = 131; /* State not recoverable */
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