fix: Eliminate compiler warnings in image loaders - #100
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- Use size_t for loop counters when comparing with sizeof() - Use JDIMENSION type for JPEG image width comparisons - Mark PNG callback functions as static with proper declarations - Suppress unused parameter warnings with void casts
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Resolves compiler warnings in image loading code:
size_tfor loop counters when comparing withsizeof()JDIMENSIONtype for JPEG image width comparisonsstaticwith forward declarations(void)castsWarnings fixed:
-Wsign-compare,-Wmissing-prototypes,-Wunused-parameterNo functional changes.