fumiama/base16384
1
0
Fork 0
mirror of https://github.com/fumiama/base16384.git synced 2026-06-27 20:20:23 +08:00
Code Activity

优化traditional_ver

Browse Source
This commit is contained in:
源文雨
2022-04-09 12:55:34 +08:00
parent 6e6a6fd9a4
commit 3ad3ab1f0a
6 changed files with 127 additions and 105 deletions
Download Patch File Download Diff File Expand all files Collapse all files

39
traditional_ver/bitio.h
View File

@@ -1,3 +1,5 @@
#ifndef _BITIO_H_
#define _BITIO_H_
//bitio.h
//made by fumiama
//20200413
@@ -12,37 +14,14 @@ struct BIT{
};
typedef struct BIT BIT;
int pushbit(BIT *buffer, const int isture){
if(buffer->p >= BITBUFSIZE * 8) return EOF;
else if(isture) buffer->b[buffer->p / 8] |= 128u >> buffer->p % 8;
else buffer->b[buffer->p / 8] &= ~(128u >> buffer->p % 8);
buffer->p++;
return isture;
}
int pushbit(BIT *buffer, const int isture);
int fpushbit(BIT *buffer, FILE *fp){
memset(buffer, 0, sizeof(BIT));
if((buffer->p = fread(buffer->b, sizeof(char), BITBUFSIZE, fp)) && feof(fp))
buffer->p = (buffer->p - 2) * 8 + buffer->b[buffer->p - 1] + 1;
else buffer->p *= 8;
return buffer->p;
}
int fpushbit(BIT *buffer, FILE *fp);
int changebit(BIT *buffer, const int isture, const int position){
if(position >= buffer->p) return EOF;
else if(isture) buffer->b[position / 8] |= 128u >> position % 8;
else buffer->b[position / 8] &= ~(128u >> position % 8);
buffer->p++;
return isture;
}
int changebit(BIT *buffer, const int isture, const int position);
int readbit(const BIT *buffer, const int position){
if(position >= buffer->p) return EOF;
else return buffer->b[position / 8] & (128u >> position % 8);
}
int readbit(const BIT *buffer, const int position);
int popbit(BIT *buffer){
if(buffer->p >= BITBUFSIZE * 8 || buffer->p < 0) return EOF;
buffer->p--;
return buffer->b[(buffer->p+1) / 8] & (128u >> (buffer->p+1) % 8);
}
int popbit(BIT *buffer);
#endif