islower 169 core/lib_thumb.c int toupper(int c) { return islower(c) ? c & ~0x20 : c; } islower 15 include/std/ctype.h extern int islower(int c); islower 232 lib/lua/lstrlib.c case 'l' : res = islower(c); break; islower 241 lib/lua/lstrlib.c return (islower(cl) ? res : !res); islower 122 modules/module_exportlist.c islower islower 137 tools/ghidra_scripts/datatypes/fw_functions.h __stdcall int islower(int c);