Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report

Current view: top level - basemath - rootpol.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30480-572da319a6) Lines: 1468 1530 95.9 % Date: 2025-08-27 09:24:05 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	296375
RgX_gtofp_bit	7031308
RgX_normalize1	35887
X2XP1	5990040
ZX_Uspensky	1313803
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15275
ZX_graeffe	5383
ZX_realroots_irred	48633
ZX_rescale2prim	2233630
ZX_sturm	6395
ZX_sturm_i	123163
ZX_sturm_irred	116768
ZX_sturmpart	1128177
ZX_to_ZiX	16455633
ZiX_sqr	99045038
_gen_nored	11198147
_gen_one	14470380
_gen_zero	326160
_intervalcmp	0
_mp_add	24660096
_mp_cmul	34760679
_mp_mul	4373775
_mp_sqr	6297392
_mp_sub	0
_sqrtnr	22710
a_posteriori_errors	537115
abs_update	8004553
abs_update_r	778660
all_roots	536072
append_clone	1613948
bkeval_single_power	5234671
check_ab	1178804
checkbound	2354738
checkvalidpol	267046
clean_roots	536116
cleanroots	231749
cmp_complex_appr	2238457
conformal_basecase	1403830
conformal_mapping	467903
conformal_pol	1403949
dblexp	6548822
dbllog2	302687868
dft	502348
dual_modulus	1012414
eval_rel_pol	13137937
fft	14159019
fft2	7462
findpower	40958373
fix_roots	537115
fix_roots1	398402
fujiwara_bound	2271584
fujiwara_bound_real	1406814
graeffe	49508886
homothetie	1610036
homothetie2n	9957568
homothetie_gauss	36501612
ind_maxlog2	902628
initdft	996303
isexactpol	239739
isexactscalar	931700
isreal	961861
isvalidcoeff	1230095
logmax_modulus	4450808
logmin_modulus	1614785
logmodulus	606743
logpre_modulus	606741
logradius	493955
lower_bound	40957106
mydbllog2i	226450182
mydbllog2r	56754705
mydbllogr	9545780
mygprec	63755004
mygprec_absolute	4339200
mygprec_special	537118
mygprecrc	215183847
mygprecrc_special	2178426
myshiftic	135828272
myshiftrc	35507545
newton_polygon	5507118
optimize_split	493958
parameters	493957
pol_to_gaussint	17588723
polgraeffe	14
polmod_to_embed	84
polrootsbound	27300
polrootsbound_i	27293
polsolve	166676
quicktofp	6978627
realroots	50627
refine_F	502341
refine_H	2460306
root_error	1912294
roots	8018
roots_aux	239767
roots_com	239739
rootsdeg0	42
scalepol	4289196
scalepol2n	0
sol_ok	3378
solve_exact_pol	231145
split_0	494281
split_0_1	468227
split_0_2	468227
split_1	467904
split_2	493957
split_complete	1525675
split_fromU	493957
split_pols	166674
splitcauchy	166681
splitpoleval	5234201
tocomplex	1213846
update_radius	493956
usp	1125953

Generated by: LCOV version 1.16