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minor : factor out errorOut()

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This commit is contained in:
Yann Collet
2018-05-12 12:34:34 -07:00
parent 50993901b2
commit 3f89cd1081
1 changed files with 9 additions and 8 deletions
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17
tests/paramgrill.c
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@ -886,6 +886,11 @@ int optimizeForSize(const char* inFileName, U32 targetSpeed)
return 0;
}
static void errorOut(const char* msg)
{
DISPLAY("%s \n", msg); exit(1);
}
/*! readU32FromChar() :
* @return : unsigned integer value read from input in `char` format.
* allows and interprets K, KB, KiB, M, MB and MiB suffix.
@ -893,23 +898,19 @@ int optimizeForSize(const char* inFileName, U32 targetSpeed)
* Note : function will exit() program if digit sequence overflows */
static unsigned readU32FromChar(const char** stringPtr)
{
const char errorMsg[] = "error: numeric value too large";
unsigned result = 0;
while ((**stringPtr >='0') && (**stringPtr <='9')) {
unsigned const max = (((unsigned)(-1)) / 10) - 1;
if (result > max) {
DISPLAY("error: numeric value too large \n");
exit(1);
}
if (result > max) errorOut(errorMsg);
result *= 10, result += **stringPtr - '0', (*stringPtr)++ ;
}
if ((**stringPtr=='K') || (**stringPtr=='M')) {
unsigned const maxK = ((unsigned)(-1)) >> 10;
if (result > maxK) errorOut(errorMsg);
result <<= 10;
if (**stringPtr=='M') {
if (result > maxK) {
DISPLAY("error: numeric value too large \n");
exit(1);
}
if (result > maxK) errorOut(errorMsg);
result <<= 10;
}
(*stringPtr)++; /* skip `K` or `M` */