From dbf5d92605a9db10e3e3cb154d03a515c5d5c5af Mon Sep 17 00:00:00 2001 From: reinelt Date: Sun, 8 May 2005 04:32:45 +0000 Subject: [lcd4linux @ 2005-05-08 04:32:43 by reinelt] CodingStyle added and applied git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@547 3ae390bd-cb1e-0410-b409-cd5a39f66f1f --- qprintf.c | 311 ++++++++++++++++++++++++++++++++------------------------------ 1 file changed, 159 insertions(+), 152 deletions(-) (limited to 'qprintf.c') diff --git a/qprintf.c b/qprintf.c index 530d709..fd5bfd3 100644 --- a/qprintf.c +++ b/qprintf.c @@ -1,4 +1,4 @@ -/* $Id: qprintf.c,v 1.7 2005/01/18 06:30:23 reinelt Exp $ +/* $Id: qprintf.c,v 1.8 2005/05/08 04:32:45 reinelt Exp $ * * simple but quick snprintf() replacement * @@ -26,6 +26,9 @@ * * * $Log: qprintf.c,v $ + * Revision 1.8 2005/05/08 04:32:45 reinelt + * CodingStyle added and applied + * * Revision 1.7 2005/01/18 06:30:23 reinelt * added (C) to all copyright statements * @@ -72,161 +75,165 @@ #include #include -static char *itoa(char* buffer, const size_t size, int value) +static char *itoa(char *buffer, const size_t size, int value) { - char *p; - int sign; - - /* sanity checks */ - if (buffer==NULL || size<2) return (NULL); - - /* remember sign of value */ - sign = 0; - if (value < 0) { - sign = 1; - value = -value; - } - - /* p points to last char */ - p = buffer+size-1; - - /* set terminating zero */ - *p='\0'; - - do { - *--p = value%10 + '0'; - value = value/10; - } while (value!=0 && p>buffer); - - if (sign && p>buffer) - *--p = '-'; - - return p; -} - - -static char *utoa(char* buffer, const size_t size, unsigned int value) + char *p; + int sign; + + /* sanity checks */ + if (buffer == NULL || size < 2) + return (NULL); + + /* remember sign of value */ + sign = 0; + if (value < 0) { + sign = 1; + value = -value; + } + + /* p points to last char */ + p = buffer + size - 1; + + /* set terminating zero */ + *p = '\0'; + + do { + *--p = value % 10 + '0'; + value = value / 10; + } while (value != 0 && p > buffer); + + if (sign && p > buffer) + *--p = '-'; + + return p; +} + + +static char *utoa(char *buffer, const size_t size, unsigned int value) { - char *p; - - /* sanity checks */ - if (buffer==NULL || size<2) return (NULL); - - /* p points to last char */ - p = buffer+size-1; - - /* set terminating zero */ - *p='\0'; - - do { - *--p = value%10 + '0'; - value = value/10; - } while (value!=0 && p>buffer); - - return p; -} - - -static char *utox(char* buffer, const size_t size, unsigned int value) + char *p; + + /* sanity checks */ + if (buffer == NULL || size < 2) + return (NULL); + + /* p points to last char */ + p = buffer + size - 1; + + /* set terminating zero */ + *p = '\0'; + + do { + *--p = value % 10 + '0'; + value = value / 10; + } while (value != 0 && p > buffer); + + return p; +} + + +static char *utox(char *buffer, const size_t size, unsigned int value) { - char *p; - int digit; - - /* sanity checks */ - if (buffer==NULL || size<2) return (NULL); - - /* p points to last char */ - p = buffer+size-1; - - /* set terminating zero */ - *p='\0'; - - do { - digit = value%16; - value = value/16; - *--p = (digit < 10 ? '0' : 'a'-10) + digit; - } while (value!=0 && p>buffer); - - return p; -} - - -int qprintf(char *str, const size_t size, const char *format, ...) { - - va_list ap; - const char *src; - char *dst; - unsigned int len; - - src = format; - dst = str; - len = 0; - - va_start(ap, format); - - /* use size-1 for terminating zero */ - while (len < size-1) { - - if (*src=='%') { - char buf[12], *s; - int d; - unsigned int u; - switch (*++src) { - case 's': - src++; - s = va_arg(ap, char *); - while (len < size-1 && *s != '\0') { - len++; - *dst++ = *s++; - } - break; - case 'd': - src++; - d = va_arg(ap, int); - s = itoa (buf, sizeof(buf), d); - while (len < size && *s != '\0') { - len++; - *dst++ = *s++; - } - break; - case 'u': - src++; - u = va_arg(ap, unsigned int); - s = utoa (buf, sizeof(buf), u); - while (len < size-1 && *s != '\0') { - len++; - *dst++ = *s++; - } - break; - case 'x': - src++; - u = va_arg(ap, unsigned int); - s = utox (buf, sizeof(buf), u); - while (len < size-1 && *s != '\0') { - len++; - *dst++ = *s++; + char *p; + int digit; + + /* sanity checks */ + if (buffer == NULL || size < 2) + return (NULL); + + /* p points to last char */ + p = buffer + size - 1; + + /* set terminating zero */ + *p = '\0'; + + do { + digit = value % 16; + value = value / 16; + *--p = (digit < 10 ? '0' : 'a' - 10) + digit; + } while (value != 0 && p > buffer); + + return p; +} + + +int qprintf(char *str, const size_t size, const char *format, ...) +{ + + va_list ap; + const char *src; + char *dst; + unsigned int len; + + src = format; + dst = str; + len = 0; + + va_start(ap, format); + + /* use size-1 for terminating zero */ + while (len < size - 1) { + + if (*src == '%') { + char buf[12], *s; + int d; + unsigned int u; + switch (*++src) { + case 's': + src++; + s = va_arg(ap, char *); + while (len < size - 1 && *s != '\0') { + len++; + *dst++ = *s++; + } + break; + case 'd': + src++; + d = va_arg(ap, int); + s = itoa(buf, sizeof(buf), d); + while (len < size && *s != '\0') { + len++; + *dst++ = *s++; + } + break; + case 'u': + src++; + u = va_arg(ap, unsigned int); + s = utoa(buf, sizeof(buf), u); + while (len < size - 1 && *s != '\0') { + len++; + *dst++ = *s++; + } + break; + case 'x': + src++; + u = va_arg(ap, unsigned int); + s = utox(buf, sizeof(buf), u); + while (len < size - 1 && *s != '\0') { + len++; + *dst++ = *s++; + } + break; + default: + len++; + *dst++ = '%'; + } + } else { + len++; + *dst++ = *src; + if (*src++ == '\0') + break; } - break; - default: + } + + va_end(ap); + + /* enforce terminating zero */ + if (len >= size - 1 && *(dst - 1) != '\0') { len++; - *dst++ = '%'; - } - } else { - len++; - *dst++ = *src; - if (*src++ == '\0') break; + *dst = '\0'; } - } - - va_end(ap); - - /* enforce terminating zero */ - if (len>=size-1 && *(dst-1)!='\0') { - len++; - *dst='\0'; - } - - /* do not count terminating zero */ - return len-1; -} + /* do not count terminating zero */ + return len - 1; +} -- cgit v1.2.3