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fix warnings due to signed char on some platforms 

some context:
https://stackoverflow.com/a/10186479/1976323
This commit is contained in:
Johannes Ringler 2022-02-22 19:37:18 +01:00 committed by Petteri Aimonen
parent 29ddf649e1
commit 09d10c16d3
1 changed files with 4 additions and 4 deletions
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8
libfixmath/fix16_str.c
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@ -71,7 +71,7 @@ void fix16_to_str(fix16_t value, char *buf, int decimals)
fix16_t fix16_from_str(const char *buf)
{
while (isspace(*buf))
while (isspace((unsigned char) *buf))
buf++;
/* Decode the sign */
@ -82,7 +82,7 @@ fix16_t fix16_from_str(const char *buf)
/* Decode the integer part */
uint32_t intpart = 0;
int count = 0;
while (isdigit(*buf))
while (isdigit((unsigned char) *buf))
{
intpart *= 10;
intpart += *buf++ - '0';
@ -102,7 +102,7 @@ fix16_t fix16_from_str(const char *buf)
uint32_t fracpart = 0;
uint32_t scale = 1;
while (isdigit(*buf) && scale < 100000)
while (isdigit((unsigned char) *buf) && scale < 100000)
{
scale *= 10;
fracpart *= 10;
@ -115,7 +115,7 @@ fix16_t fix16_from_str(const char *buf)
/* Verify that there is no garbage left over */
while (*buf != '\0')
{
if (!isdigit(*buf) && !isspace(*buf))
if (!isdigit((unsigned char) *buf) && !isspace((unsigned char) *buf))
return fix16_overflow;
buf++;