include/nolibc/stdlib.h

81 /* getenv() tries to find the environment variable named <name> in the
158 	 * No need to zero the heap, the MAP_ANONYMOUS in malloc()
193 /* Converts the unsigned long integer <in> to its hex representation into
198  * in a way to optimize the code size and avoid any divide that could add a
202 int utoh_r(unsigned long in, char *buffer)
209 		dig = in >> pos;
210 		in -= (uint64_t)dig << pos;
223 /* converts unsigned long <in> to an hex string using the static itoa_buffer
227 char *utoh(unsigned long in)
229 	utoh_r(in, itoa_buffer);
233 /* Converts the unsigned long integer <in> to its string representation into
235  * trailing zero (21 bytes for 18446744073709551615 in 64-bit, 11 for
236  * 4294967295 in 32-bit). The buffer is filled from the first byte, and the
238  * The function is constructed in a way to optimize the code size and avoid
242 int utoa_r(unsigned long in, char *buffer)
253 		if (digits || in >= lim || !pos) {
254 			for (dig = 0; in >= lim; dig++)
255 				in -= lim;
264 /* Converts the signed long integer <in> to its string representation into
266  * trailing zero (21 bytes for -9223372036854775808 in 64-bit, 12 for
267  * -2147483648 in 32-bit). The buffer is filled from the first byte, and the
271 int itoa_r(long in, char *buffer)
276 	if (in < 0) {
277 		in = -in;
281 	len += utoa_r(in, ptr);
289 char *ltoa_r(long in, char *buffer)
291 	itoa_r(in, buffer);
295 /* converts long integer <in> to a string using the static itoa_buffer and
299 char *itoa(long in)
301 	itoa_r(in, itoa_buffer);
305 /* converts long integer <in> to a string using the static itoa_buffer and
309 char *ltoa(long in)
311 	itoa_r(in, itoa_buffer);
315 /* converts unsigned long integer <in> to a string using the static itoa_buffer
319 char *utoa(unsigned long in)
321 	utoa_r(in, itoa_buffer);
325 /* Converts the unsigned 64-bit integer <in> to its hex representation into
329  * trailing zero) is returned. The function is constructed in a way to optimize
334 int u64toh_r(uint64_t in, char *buffer)
342 			dig = (in >> pos) & 0xF;
345 			uint32_t d = (pos >= 32) ? (in >> 32) : in;
359 /* converts uint64_t <in> to an hex string using the static itoa_buffer and
363 char *u64toh(uint64_t in)
365 	u64toh_r(in, itoa_buffer);
369 /* Converts the unsigned 64-bit integer <in> to its string representation into
373  * trailing zero) is returned. The function is constructed in a way to optimize
378 int u64toa_r(uint64_t in, char *buffer)
389 		if (digits || in >= lim || !pos) {
390 			for (dig = 0; in >= lim; dig++)
391 				in -= lim;
400 /* Converts the signed 64-bit integer <in> to its string representation into
407 int i64toa_r(int64_t in, char *buffer)
412 	if (in < 0) {
413 		in = -in;
417 	len += u64toa_r(in, ptr);
421 /* converts int64_t <in> to a string using the static itoa_buffer and returns
425 char *i64toa(int64_t in)
427 	i64toa_r(in, itoa_buffer);
431 /* converts uint64_t <in> to a string using the static itoa_buffer and returns
435 char *u64toa(uint64_t in)
437 	u64toa_r(in, itoa_buffer);