https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88892
Eric Gallager <egallager at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |egallager at gcc dot gnu.org --- Comment #5 from Eric Gallager <egallager at gcc dot gnu.org> --- This is one of the reasons -Wfloat-conversion exists: $ gcc -c -Wall -Wextra -Wfloat-conversion -Wdouble-promotion -Wunsuffixed-float-constants -pedantic -O2 88892.c 88892.c: In function 'f': 88892.c:4:13: warning: conversion from 'double' to 'float' may change value [-Wfloat-conversion] float f = d; ^ $