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Remove magic numbers.

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rafagafe 2017-05-20 00:21:27 +02:00
parent e628e40f01
commit 529f854675
1 changed files with 9 additions and 12 deletions
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21
tiny-json.c
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@ -75,14 +75,10 @@ json_t const* json_create( char* str, json_t mem[], unsigned int qty ) {
* @return The character code. */
static char getEscape( char ch ) {
static struct { char ch; char code; } const pair[] = {
{ '\"', '\"' },
{ '\\', '\\' },
{ '/', '/' },
{ 'b', '\b' },
{ 'f', '\f' },
{ 'n', '\n' },
{ 'r', '\r' },
{ 't', '\t' },
{ '\"', '\"' }, { '\\', '\\' },
{ '/', '/' }, { 'b', '\b' },
{ 'f', '\f' }, { 'n', '\n' },
{ 'r', '\r' }, { 't', '\t' },
};
unsigned int i;
for( i = 0; i < sizeof pair / sizeof *pair; ++i )
@ -282,14 +278,14 @@ static char* numValue( char* ptr, json_t* property ) {
if ( JSON_INTEGER == property->type ) {
char const* value = property->u.value;
bool const negative = *value == '-';
unsigned int const maxdigits = negative ? 20: 19;
static char const min[] = "-9223372036854775808";
static char const max[] = "9223372036854775807";
unsigned int const maxdigits = ( negative? sizeof min: sizeof max ) - 1;
unsigned int const len = ptr - value;
if ( len > maxdigits ) return 0;
if ( len == maxdigits ) {
char const tmp = *ptr;
*ptr = '\0';
char const* const min = "-9223372036854775808";
char const* const max = "9223372036854775807";
char const* const threshold = negative ? min: max;
if ( 0 > strcmp( threshold, value ) ) return 0;
*ptr = tmp;
@ -298,6 +294,7 @@ static char* numValue( char* ptr, json_t* property ) {
ptr = setToNull( ptr );
return ptr;
}
/** Add a property to a JSON object or array.
* @param obj The handler of the JSON object or array.
* @param property The handler of the property to be added. */
@ -453,4 +450,4 @@ static char* setToNull( char* ch ) {
/** Indicate if a character is the end of a primitive value. */
static bool isEndOfPrimitive( char ch ) {
return ch == ',' || isOneOfThem( ch, blank ) || isOneOfThem( ch, endofblock );
}
}