OpenForum RSS: ��

�� (pavlinux)

Wed, 26 Nov 2014 22:58:32 GMT

> �� ceil, �� math.h ��

�� math.h?
[code]

#include <stdio.h>
#define ceil(x) (long long)(x+1)

int main(void)
{
double x = 987.654321;
printf("%lld\n", ceil(x));
return 0;
}
[/code]
:)

�� (skb7)

Tue, 11 Nov 2014 11:50:35 GMT

>>> � �� ,
>>> H=data>>8;
>> unsigned char H = ((data >> 8)|( data << 8));
>> �� Little Endian � Big Endian,
>> � �� .
> �� ceil, �� math.h ��

�� :
[code]
$ man 3 ceil
[/code]

�� :
[code]
NAME
ceil, ceilf, ceill - ceiling function: smallest integral value not less than argument

SYNOPSIS
#include <math.h>

double ceil(double x);
float ceilf(float x);
long double ceill(long double x);

Link with -lm.
[/code]

�.�. �� :
1. �� libm.so
2. �� :

�� :
[code]
#include <math.h>
#include <stdio.h>
#include <stdlib.h>

int main(void)
{
double x = 15.365;

printf("x = %f\n", x);
printf("ceil(x) = %f\n", ceil(x));

return EXIT_SUCCESS;
}
[/code]

��

�� (RedD)

Tue, 11 Nov 2014 09:09:08 GMT

>> � �� ,
>> H=data>>8;
> unsigned char H = ((data >> 8)|( data << 8));
> �� Little Endian � Big Endian,
> � �� .

�� ceil, �� math.h ��

�� (pavlinux)

Wed, 05 Nov 2014 15:58:28 GMT

> ��, �� (�� ).

�� , �� .

�� (skb7)

Tue, 04 Nov 2014 18:24:12 GMT

> �� :-P

�� : "� �� , � �� " :)

> �� ? ��

��, �� /dev/null, �� -�� . Just saying.

�� (skb7)

Tue, 04 Nov 2014 18:13:18 GMT

> �� ! �� .�, �� .h �� !!!

� �� . �� "-x" �� , �� .c, � .h ��. �� ). �� "man gcc":

[code]
-x none
Turn off any specification of a language, so that subsequent files are handled according to their file name suffixes (as they are if -x has not been used at all).
[/code]

��, � �� , �� .h �� , ��. Precompiled headers: https://gcc.gnu.org/onlinedocs/gcc/Precompiled-Headers.html

� .c �� , � �� .c ��; ��. �� :
[code]
grep -r 'include ".*\.c"' drivers/usb/*
[/code]

�� :
http://stackoverflow.com/questions/232693/including-one-c-source-file-in-another/1109255#1109255

� �� ӣ ��

�� (pavlinux)

Tue, 04 Nov 2014 17:11:19 GMT

>> �� .h �� .c
>> �� .h ��, � .c ��?
>> �� .c �� .h ��
> �� .c �� (� �� ), .h �� .

�� ! �� .�, �� .h �� !!!

$ echo 'int main(){ return 0;}' > system32.dll
$ gcc -xc system32.dll
$ ./a.out

$ gcc -xc /dev/null -c
$ objdump -d null.o

objdump -d null.o

null.o: �� elf64-x86-64

�� :)

�� (skb7)

Tue, 04 Nov 2014 16:58:03 GMT

> �� .h �� .c
> �� .h ��, � .c ��?
> �� .c �� .h ��

�� .c �� (� �� ), .h �� . �� "#include" �� .h ��.

�� , �� .h �� .c ��. ��, � �� (.c ��): �� , �� , �� RTC � �.�. �� . �� , �� "common.h":

[code]
#ifndef COMMON_H
#define COMMON_H

#include <stdint.h>

/* Routines to get the high and low byte of 16-bit word */
#define HI(x) ((uint8_t)(x >> 8))
#define LO(x) ((uint8_t)(x))

#endif /* COMMON_H */
[/code]

�� . �� "common.c" ��

�� (RedD)

Tue, 04 Nov 2014 16:00:28 GMT

>[�� ]
>> L = data^0xff00;
>> �� ) �� , ��
>> �� )
>> �� , � �� , �
>> �� ))))
> � �� , �� "�� ", �.�.
> "&", � �� "�� ". ��
> �� ӣ �� . pavlinux ��
> ��, �� (�� , ��
> � ��, � ��).

�� .h �� .c
�� .h ��, � .c ��?
�� .c �� .h ��

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������ (skb7)

������ (skb7)

������ (pavlinux)

������ (skb7)

������ (RedD)

OpenForum RSS: ��

�� (pavlinux)

�� (skb7)

�� (RedD)

�� (pavlinux)

�� (skb7)

�� (skb7)

�� (pavlinux)

�� (skb7)

�� (RedD)