?? gcvt.c
字號:
/* * gcvt - Floating output conversion to * minimal length string */char *ecvt();char *gcvt(number, ndigit, buf)double number;char *buf;{ int sign, decpt; register char *p1, *p2; register i; p1 = ecvt(number, ndigit, &decpt, &sign); p2 = buf; if (sign) *p2++ = '-'; for (i=ndigit-1; i>0 && p1[i]=='0'; i--) ndigit--; if (decpt >= 0 && decpt-ndigit > 4 || decpt < 0 && decpt < -3) { /* use E-style */ decpt--; *p2++ = *p1++; *p2++ = '.'; for (i=1; i<ndigit; i++) *p2++ = *p1++; *p2++ = 'e'; if (decpt<0) { decpt = -decpt; *p2++ = '-'; } else *p2++ = '+'; *p2++ = decpt/10 + '0'; *p2++ = decpt%10 + '0'; } else { if (decpt<=0) { if (*p1!='0') *p2++ = '.'; while (decpt<0) { decpt++; *p2++ = '0'; } } for (i=1; i<=ndigit; i++) { *p2++ = *p1++; if (i==decpt) *p2++ = '.'; } if (ndigit<decpt) { while (ndigit++<decpt) *p2++ = '0'; *p2++ = '.'; } } if (p2[-1]=='.') p2--; *p2 = '\0'; return(buf);}
?? 快捷鍵說明
復(fù)制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -