no acceptable C compiler found in $PATH
GCC°²×°³É¹¦,ËùÐèÎļþÓÐ:
libf2c-3.3.2-1.i386.rpm
libstdc++-devel-3.3.2-1.i386.rpm
glibc-kernheaders-2.4-8.36.i386.rpm
glibc-headers-2.3.2-101.i386.rpm
glibc-devel-2.3.2-101.i386.rpm
gcc-objc-3.3.2-1.i386.rpm
binutils-2.14.90.0.6-3.i386.rpm
gcc-3.3.2-1.i386.rpm
gcc-c++-3.3.2-1.i386.rpm
automake14-1.4p6-7.noarch.rpm
°²×°±È½Ï¼òµ¥:
#rpm -ivh
rpmÎļþ
------------------------------------------
×Ô¼ºµÄ½â¾ö°ì·¨£º
£¨ÔÚÏß°²×°gcc£©
# yum -y install
gcc
base
100% |=========================| 1.1
kB
00:00
updates
100% |=========================| 951
B
00:00
addons
100% |=========================| 951
B
00:00
extras
100% |=========================| 1.1
kB
00:00
Installed: gcc.i386
0:4.1.2-42.el5
Dependency Installed: cpp.i386 0:4.1.2-42.el5 glibc-devel.i386
0:2.5-24.el5_2.2 glibc-headers.i386 0:2.5-24.el5_2.2
kernel-headers.i386 0:2.6.18-92.1.22.el5 libgomp.i386
0:4.1.2-42.el5
Updated: glibc.i686 0:2.5-24.el5_2.2 glibc-common.i386
0:2.5-24.el5_2.2
Complete!
Ïà¹ØÎĵµ£º
2010-03-16
1£¬×Ö·û´®³£Á¿£º¾ÍÊÇÔÚÔ´³ÌÐòÖб»Ë«ÒýºÅÀ¨ÆðÀ´µÄÒ»´®×Ö·û£¬ÀýÈç“hello”¡£ÔÚÄÚ´æÖдæ6¸ö×Ö½Ú£¬°üÀ¨×îºóÒ»¸öNUL×Ö½Ú£¨¼´‘\0’£©.
2£¬NULÊÇASCii×Ö·û¼¯ÖБ\0’×Ö·ûµÄÃû×Ö£¬ËüµÄ×Ö½ÚģʽΪȫ0. NULLÖ¸Ò»¸öÆäֵΪ0µÄÖ¸Õ룬ËûÃǶ¼ÊÇÕûÐÍÖµ£¬ÇÒÖµ¶¼Ïàͬ£¬ËùÒÔËûÃÇ¿ÉÒÔ»¥»»Ê¹Ó㬵« ......
Ò»¡¢¸ÅÊö
1¡¢C++ËäÈ»ÊÇ´ÓCÓïÑÔÖз¢Õ¹µÄ£¬µ«ÆäÖÐÓÐÐí¶àÒªµã£¬ÊÇCÓïÑÔÖÐËùûÓе쬰üÀ¨ÒýÓã¬ÄÚÁªº¯ÊýµÈ£¬ÔÚ´Ë×öÒ»¸ö½éÉÜ¡£
2¡¢¶ÔÓÚC/C++ÖеĻù´¡ÊDZØÐëÒªÏêϸÁ˽âµÄ£¬Äܹ»Éî¿ÌÀí½âÆäº¬ÒåÒÔ¼°ÆäÀ´Ô´£¬ÊÇÒ»¸öÈËÄÚ¹¦Éî¿ÌµÄ±íÏÖ¡£Èç¹ûһЩ»ù´¡µÄÎÊÌ⣬
¶¼Ëµ²»ÉÏÀ´£¬ÓÖÈçºÎ¸øÈËÒÔÐÅÐÄÄØ¡£
¶þ¡¢³£¼ûµÄÎÊÌâ
1¡¢ÎªÊ²Ã´ÒªÊ¹ ......
ÔÚÇ°ÃæµÄ×¼±¸¹¤×÷Íê³ÉÖ®ºó£¬ÏÈʵÑéһϣ¬Ì¸²»ÉÏÕæÕýµÄÒÆÖ² £¬ÒòΪ´úÂ붼ûÓиĵġ£
Ê×ÏÈÐ޸Ķ¥²ãµÄMakefile£¬ÐÞ¸ÄARCH,CROSS_COMPLIE±äÁ¿¡£
#ARCH ?= $(SUBARCH)
ARCH ?= arm
CROSS_COMPILE ?= arm-linux-
Ö´ÐÐmake smd ......
1.1 ±äÁ¿×÷ÓÃÓò
1.1.1 ¼¸ÖÖ³£¼ûÀàÐͱäÁ¿µÄ×÷ÓÃÓò
×÷ÓÃÓò£¨scope£©»òÕ߿ɼûÐÔÊÇÖ¸±äÁ¿ÔÚ³ÌÐòÄڵĿɼûºÍ¿ÉÒýÓõķ¶Î§¡£
±ÈÈç:
1¡¢ È«¾Ö±äÁ¿ÔÚËùÓеÄÎļþ¶¼¿É¼û£¬ÄÇËûµÄ×÷ÓÃÓò¾ÍÊÇËùÓÐÎļþ£»
2¡¢ static¶¨ÒåµÄÈ«¾Ö±äÁ¿£¬Ö»ÔÚ¶¨ÒåËüµÄÔ´ÎļþÖпɼû£¬ÄÇËûµÄ×÷ÓÃÓò¾ÍÊÇÆäËùÔÚµÄÔ´Îļþ£»
3¡¢ º¯ÊýÄÚ²¿µÄ¾Ö²¿±äÁ¿£¬Ö»ÔÚÆäº¯Êý ......
Ô¤´¦ÀíÆ÷£¨Preprocessor£©
¡¡
¡¡¡¡1 . ÓÃÔ¤´¦ÀíÖ¸Áî#define ÉùÃ÷Ò»¸ö³£Êý£¬ÓÃÒÔ±íÃ÷1ÄêÖÐÓжàÉÙÃ루ºöÂÔÈòÄêÎÊÌ⣩
¡¡
¡¡¡¡#define SECONDS_PER_YEAR £¨60 * 60 * 24 * 365£©
¡¡
¡¡¡¡ÎÒÔÚÕâÏë¿´µ½¼¸¼þÊÂÇ飺
¡ï¡£#define Óï·¨µÄ»ù±¾ÖªÊ¶£¨ÀýÈ磺²»ÄÜÒԷֺŽáÊø£¬À¨ºÅµÄʹÓ㬵ȵȣ©
¡¡
¡ ......