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* Added gcvt() implementation - this fixes bug #1757.

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* Added gcvt(), ecvt(), and fcvt() prototypes to stdlib.h - they are all
  marked legacy, but are still part of the POSIX standard, so we might want
  to implement them if the need arises.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23896 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2008-02-06 17:11:02 +00:00
parent b2b8943d50
commit 392eb518d5
3 changed files with 35 additions and 6 deletions
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22
headers/posix/stdlib.h
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@ -1,5 +1,5 @@
/* /*
* Copyright 2002-2007, Haiku Inc. All Rights Reserved. * Copyright 2002-2008, Haiku Inc. All Rights Reserved.
* Distributed under the terms of the MIT License. * Distributed under the terms of the MIT License.
*/ */
#ifndef _STDLIB_H_ #ifndef _STDLIB_H_
@ -66,6 +66,11 @@ extern int system(const char *command);
extern char *mktemp(char *name); extern char *mktemp(char *name);
extern int mkstemp(char *templat); extern int mkstemp(char *templat);
extern char *ecvt(double value, int digits, int *_decimalPoint, int *_sign);
extern char *fcvt(double value, int precision, int *_decimalPoint,
int *_sign);
extern char *gcvt(double value, int digits, char *buffer);
/* environment variables */ /* environment variables */
extern char **environ; extern char **environ;
extern char *getenv(const char *name); extern char *getenv(const char *name);
@ -131,11 +136,16 @@ typedef int (*_compare_function)(const void *, const void *);
extern void *bsearch(const void *key, const void *base, size_t numElements, extern void *bsearch(const void *key, const void *base, size_t numElements,
size_t sizeOfElement, _compare_function); size_t sizeOfElement, _compare_function);
extern int heapsort(void *base, size_t numElements, size_t sizeOfElement, _compare_function); extern int heapsort(void *base, size_t numElements, size_t sizeOfElement,
extern int mergesort(void *base, size_t numElements, size_t sizeOfElement, _compare_function); _compare_function);
extern void qsort(void *base, size_t numElements, size_t sizeOfElement, _compare_function); extern int mergesort(void *base, size_t numElements, size_t sizeOfElement,
extern int radixsort(u_char const **base, int numElements, u_char const *table, u_int endByte); _compare_function);
extern int sradixsort(u_char const **base, int numElements, u_char const *table, u_int endByte); extern void qsort(void *base, size_t numElements, size_t sizeOfElement,
_compare_function);
extern int radixsort(u_char const **base, int numElements,
u_char const *table, u_int endByte);
extern int sradixsort(u_char const **base, int numElements,
u_char const *table, u_int endByte);
/* misc math functions */ /* misc math functions */
extern int abs(int number); extern int abs(int number);

1
src/system/libroot/posix/stdlib/Jamfile
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@ -12,6 +12,7 @@ MergeObject posix_stdlib.o :
div.c div.c
env.c env.c
exit.c exit.c
gcvt.c
heapsort.c heapsort.c
merge.c merge.c
mktemp.c mktemp.c

18
src/system/libroot/posix/stdlib/gcvt.c Normal file
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@ -0,0 +1,18 @@
/*
* Copyright 2008, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#include <stdlib.h>
char *
gcvt(double value, int digits, char *buffer)
{
sprintf(buffer, "%.*g", digits, value);
return buffer;
}
// TODO: eventually add ecvt(), and fcvt() as well, if needed.