mirror of
https://github.com/oxen-io/session-ios.git
synced 2023-12-13 21:30:14 +01:00
1e9a3e9a46
- dictionaryWithObject -> @{key: val}
- objectAtIndex -> a[i]
- numberWithBool/Int/etc -> @1, @(val)
- Reverted friendly fire on ProtocolBuffers
- Did not do ANY other changes (including changes to make more refactorings succeed)
//FREEBIE
96 lines
2.3 KiB
Objective-C
96 lines
2.3 KiB
Objective-C
#import "NumberUtil.h"
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#import "Constraints.h"
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@implementation NumberUtil
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+(int16_t) congruentDifferenceMod2ToThe16From:(uint16_t)s1 to:(uint16_t)s2 {
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int32_t d = (int32_t)(s2 - s1);
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if (d > INT16_MAX) d -= 1 << 16;
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return (int16_t)d;
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}
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+(int8_t) signOfInt32:(int32_t)value {
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if (value < 0) return -1;
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if (value > 0) return +1;
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return 0;
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}
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+(int8_t) signOfDouble:(double)value {
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if (value < 0) return -1;
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if (value > 0) return +1;
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return 0;
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}
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+(NSUInteger) largestIntegerThatIsAtMost:(NSUInteger)value andIsAMultipleOf:(NSUInteger)multiple {
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require(multiple != 0);
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NSUInteger d = value / multiple;
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d *= multiple;
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if (d > value) d -= multiple;
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return d;
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}
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+(NSUInteger) smallestIntegerThatIsAtLeast:(NSUInteger)value andIsAMultipleOf:(NSUInteger)multiple {
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require(multiple != 0);
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NSUInteger d = value / multiple;
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d *= multiple;
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if (d < value) d += multiple;
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return d;
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}
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+(double) clamp:(double)value toMin:(double)min andMax:(double)max {
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require(min <= max);
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if (value < min) return min;
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if (value > max) return max;
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return value;
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}
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+(NSUInteger) from:(NSUInteger)value subtractWithSaturationAtZero:(NSUInteger)minusDelta {
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return value - MIN(value, minusDelta);
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}
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+(uint8_t) uint8FromLowUInt4:(uint8_t)low4UInt4 andHighUInt4:(uint8_t)highUInt4 {
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require(low4UInt4 < 0x10);
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require(highUInt4 < 0x10);
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return low4UInt4 | (uint8_t)(highUInt4 << 4);
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}
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+(uint8_t) lowUInt4OfUint8:(uint8_t)value {
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return value & 0xF;
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}
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+(uint8_t) highUInt4OfUint8:(uint8_t)value {
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return value >> 4;
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}
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+(NSUInteger) assertConvertIntToNSUInteger:(int) value {
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assert(0 <= value);
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return (NSUInteger)value;
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}
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+(NSInteger) assertConvertUnsignedIntToNSInteger:(unsigned int) value {
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// uint is a subset of NSInteger(long) bounds check is always true
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return (NSInteger)value;
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}
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+(int) assertConvertNSUIntegerToInt:(NSUInteger) value {
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assert(value <= INT32_MAX);
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return (int)value;
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}
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@end
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@implementation NSNumber (NumberUtil)
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-(bool) hasUnsignedIntegerValue {
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return [self isEqual:@([self unsignedIntegerValue])];
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}
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-(bool) hasUnsignedLongLongValue {
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return [self isEqual:@([self unsignedLongLongValue])];
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}
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-(bool) hasLongLongValue {
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return [self isEqual:@([self longLongValue])];
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}
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@end
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