153 lines
4.2 KiB
C
153 lines
4.2 KiB
C
/* stdlib.h: General utilities. */
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#ifndef _STDLIB_H
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#define _STDLIB_H
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#include <bits/attrs.h>
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#include <stddef.h>
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/* The result of a division operation on two integers. */
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typedef struct
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{
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int quot;
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int rem;
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} div_t;
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/* The result of a division operation on two long integers. */
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typedef struct
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{
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long quot;
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long rem;
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} ldiv_t;
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/* The result of a division operation on two long long integers. */
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typedef struct
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{
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long long quot;
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long long rem;
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} lldiv_t;
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#define MB_CUR_MAX 4
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#define RAND_MAX 32767
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#define EXIT_SUCCESS 0
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#define EXIT_FAILURE 1
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/* Return the absolute value of an integer. */
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int abs(int);
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/* Return the absolute value of a long integer. */
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long labs(long);
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/* Return the absolute value of a long long integer. */
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long long llabs(long long);
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/* Return the result of dividing two integers, including the remainder. */
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div_t div(int, int);
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/* Return the result of dividing two long integers, including the remainder. */
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ldiv_t ldiv(long, long);
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/* Return the result of dividing two long long integers, including the remainder. */
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lldiv_t lldiv(long long, long long);
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/* Allocate heap memory. */
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void* malloc(size_t size);
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/* Allocate zero-initialized heap memory. */
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void* calloc(size_t nmemb, size_t size);
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/* Resize allocated heap memory. */
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void* realloc(void* ptr, size_t size);
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/* Free heap memory. */
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void free(void* ptr);
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/* Abort the program without performing any normal cleanup. */
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__noreturn void abort();
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/* Register a handler to be run at normal program termination. */
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int atexit(void (*func)(void));
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/* Parse a decimal integer from a string. */
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int atoi(const char* s);
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/* Parse a decimal integer from a string. */
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long atol(const char* s);
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/* Parse a decimal integer from a string. */
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long long atoll(const char* s);
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/* Parse a floating-point number from a string. */
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double atof(const char* str);
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/* Parse a floating-point number from a string. */
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double strtod(const char* str, char** endptr);
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/* Parse an integer of the specified base from a string, storing the first non-number character in endptr if
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* nonnull. */
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long strtol(const char* str, char** endptr, int base);
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/* Parse an unsigned integer of the specified base from a string, storing the first non-number character in
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* endptr if nonnull. */
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unsigned long strtoul(const char* str, char** endptr, int base);
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#define strtoll strtol
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#define strtoull strtoul
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/* Return the next pseudorandom number. */
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int rand();
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/* Set the pseudorandom number generator's seed, which will determine the sequence of numbers returned by rand(). */
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void srand(unsigned int seed);
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/* Exit the program normally, performing any registered cleanup actions. */
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__noreturn void exit(int status);
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/* Exit the program abnormally, without performing any registered cleanup actions. */
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__noreturn void _Exit(int status);
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/* Execute a shell command. */
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int system(const char* cmd);
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/* Get the value of an environment variable. */
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char* getenv(const char* key);
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/* Set the value of an environment variable. */
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int setenv(const char* key, const char* value, int overwrite);
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/* Remove a variable from the environment. */
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int unsetenv(const char* key);
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/* Clear all environment variables. */
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int clearenv(void);
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/* Sort an array of arbitrary elements using a comparison function. */
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void qsort(void* base, size_t nmemb, size_t size, int (*compar)(const void*, const void*));
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void* bsearch(const void*, const void*, size_t, size_t, int (*)(const void*, const void*));
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/* Convert a multibyte character string to a wide character string. */
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size_t mbstowcs(wchar_t* buf, const char* src, size_t max);
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/* Convert a wide character string to a multibyte character string. */
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size_t wcstombs(char* buf, const wchar_t* src, size_t max);
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/* Create a unique directory from a template string whose last 6 bytes must be XXXXXX. */
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char* mkdtemp(char* _template);
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/* Create a unique file from a template string whose last 6 bytes must be XXXXXX. */
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int mkstemp(char* _template);
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#ifdef __cplusplus
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}
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#endif
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#endif
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