Dedo

■stdio.h
■ctype.h
■string.h
■math.h
■stdlib.h
■assert.h
■setjmp.h
■signal.h
■time.h
Input and Output: <stdio.h>
■FILE *fopen(const char *filename, const char *mode)
■FILE *freopen(const char *filename, const char *mode, FILE *stream)
■int fflush(FILE *stream)
■int fclose(FILE *stream)
■int remove(const char *filename)
■int rename(const char *oldname, constchar *newname)
■FILE *tmpfile(void)
■char *tmpnam(char s[L_tmpnam])
■int setvbuf(FILE *stream, char *buf, int mode, size_t size)
■void setbuf(FILE *stream, char *buf)
■int fprint(FILE *stream, const char *format, …)
■int sprintf(char *s, const char *format, …)
■vprintf(const char *format, va_list arg)
■vfprintf(FILE *stream, const char *format, va_list arg)
■vsprintf(char *s, constchar *format, va_list arg)
■int fscanf(FILE *stream, const char *format, …)
■int scanf(const char *format, …)
■int sscanf(char *s, const char *format, …)
■int fgetc(FILE *stream)
■char *fgets(char *s, int n, FILE *stream)
■int fputc(int c, FILE *stream)
■int fputs(const char *s, FILE *stream)
■int getc(FILE *stream)
■int getchar(void)
■char *gets(char *s)
■int putc(int c,FILE *stream)
■int putchar(int c)
■int ungetc(int c, FILE *stream)
■size_t fread(void *ptr, size_t size, size_t nobj, FILE *stream)
■size_t fwrite(const void *ptr, size_t size, size_t nobj, FILE *stream)
■int fseek(FILE *stream, long offset, int orogin)
■long ftell(FILE *stream)
■void rewind(FILE *stream)
■int fgetpos(FILE *stream, fpos_t *ptr)
■int fsetpos(FILE *stream, constfpos_t *ptr)
■void clearerr(FILE *stream)
■int feof(FILE *stream)
■int ferror(FILE *stream)
■void perror(const char *s)

Character Class Tests: <ctype.h>
■isalnum(c)
■isalpha(c)
■iscntrl(c)
■isdigit(c)
■isgraph(c)
■islower(c)
■isprint(c)
■ispunct(c)
■isspace(c)
■isupper(c)
■isxdigit(c)

String Functions: <string.h>
■char *strcpy(s , ct)
■char*strncpy(s , ct , n)
■char *strcat(s , ct)
■char *strncat(s , ct , n)
■int strcmp(cs , ct)
■int strncmp(cs , ct ,n)
■char *strchr(cs , c)
■char *strrchr(cs , c)
■size_t strspn(cs , ct)
■size_t strcspn(cs , ct)
■char *strstr(cs , ct)
■size_t strlen(cs)
■char *strerror(n)
■char *strtok(s , ct)

Mathematical Functions: <math.h>
■sin(x)
■cos(x)
■tan(x)
■asin(x)■acos(x)
■atan(x)
■atan2(x)
■sinh(x)
■cosh(x)
■tanh(x)
■exp(x)
■log(x)
■log10(x)
■pow(x,y)
■sqrt(x)
■ceil(x)
■floor(x)
■fabs(x)
■ldexp(x)
■frexp(x,double *ip)
■modf(x,double *ip)
■fmod(x,y)

Utility Functions: <stdlib.h>
■double atof(const char *s)
■int atoi(const char *s
■long atol(const char *s)
■double strrod(const char *s, char **endp)
■longstrtol(const char *s, char **endp, int base)
■unsigned long strtoul(const char *s, char **endp, int base)
■int rand(void)
■void srand(unsigned int seed)
■void *calloc(size_t nobj, size_t size)
■void *malloc(size_t size)
■void *realloc(void *p, size_t size)
■void free(void *p)
■void abort(void)
■void exit(int status)
■int atexit(void (*fcn)(void))
■int system(const char *s)■char *getenv(const char *name)
■void *bsearch(const void *key, const void *base, size_t n, size_t size, int (*cmp)(const void *keyval, const void *datum))
■void qsort(void *base, size_t n, size_t size, int (*cmp)(const void *, const void *))
■int abs(int n)
■long labs(long n)
■div_t div(int num, int denom)
■ldiv_t ldiv(long num , long denom)

Diagnostics: <assert.h>
■voidassert(int expression)

Non-local Jumps: <setjmp.h>
■int setjmp(jmp_buf env)
■void longjmp(jmp_buf env, int val)

Signals: <signal.h>
■void (*signal(int sig, void (*handler)(int)))(int)

Data and Time Functions: <time.h>
■clock_t clock(void)
■time_t time(time_t , *tp)
■double difftime(time_t time2 , time_t time1)
■time_t mktime(struct tm *tp)
■char...