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c_libraries.md

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ctype.h

int isalnum(int);
int isalpha(int);
int isblank(int);
int iscntrl(int);
int isdigit(int);
int isgraph(int);
int islower(int);
int isprint(int);
int ispunct(int);
int isspace(int);
int isupper(int);
int isxdigit(int);
int tolower(int);
int toupper(int);
int isascii(int);
int toascii(int);

errno.h

Not implemented

math.h

float acos(float);
float asin(float);
float atan(float);
float atan2(float, float);
float ceil(float);
float cos(float);
float cosh(float);
float exp(float);
float fabs(float);
float floor(float);
float fmod(float, float);
float frexp(float, int *);
float ldexp(float, int);
float log(float);
float log10(float);
float modf(float, float *);
float pow(float,float);
float round(float);
float sin(float);
float sinh(float);
float sqrt(float);
float tan(float);
float tanh(float);

stdbool.h

The type bool, and values true and false are globally defined.

stdio.h

int printf(char *, ...);

stdlib.h

float atof(char *);
float strtod(char *,char **);
int atoi(char *);
int atol(char *);
int strtol(char *,char **,int);
int strtoul(char *,char **,int);
void *malloc(int);
void *calloc(int,int);
void *realloc(void *,int);
void free(void *);
int rand();
void abort();
void exit(int);
int abs(int);
int labs(int);

Notes:

  1. Parameter base of strtol() and strtoul() is currently ignored and these functions only support conversion of base-10 numbers by now.
  2. There is no way to actually free a memory block created by malloc() or calloc(); free() is equal to realloc(ptr, 0). Use these dynamic memory allocation functions with caution.
  3. srand() is not supported because it may interfere with the random number generator used by the variable memory system; The random number generator is automatically seeded by the current system counter on startup.

string.h

void *memcpy(void *,void *,int);
void *memmove(void *,void *,int);
void *memchr(char *,int,int);
int memcmp(void *,void *,int);
void *memset(void *,int,int);
char *strcat(char *,char *);
char *strncat(char *,char *,int);
char *strchr(char *,int);
char *strrchr(char *,int);
int strcmp(char *,char *);
int strncmp(char *,char *,int);
char *strcpy(char *,char *);
char *strncpy(char *,char *,int);
int strlen(char *);
int strspn(char *,char *);
int strcspn(char *,char *);
char *strpbrk(char *,char *);
char *strstr(char *,char *);
char *strtok(char *,char *);

time.h

Not implemented

unistd.h

Not implemented