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 30418-83092bf331) Lines: 1467 1530 95.9 % Date: 2025-07-29 09:22:49 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
_intervalcmp	0
_mp_sub	0
scalepol2n	0
ZX_Uspensky_equal_yes	14
polgraeffe	14
ZX_Uspensky_no	21
ZX_Uspensky_equal	28
rootsdeg0	42
FFT	56
FFTinv	56
polmod_to_embed	84
FFT_i	98
sol_ok	3378
ZX_graeffe	5383
ZX_sturm	6395
fft2	7462
roots	8018
ZX_deg1root	15274
_sqrtnr	22709
polrootsbound_i	27293
polrootsbound	27300
RgX_normalize1	35887
ZX_realroots_irred	48621
realroots	50627
ZX_sturm_irred	116759
ZX_sturm_i	123154
polsolve	166628
split_pols	166630
splitcauchy	166638
solve_exact_pol	231040
cleanroots	231644
isexactpol	239634
roots_com	239634
roots_aux	239662
checkvalidpol	266941
QX_complex_roots	290018
_gen_zero	325998
fix_roots1	394082
split_1	467790
conformal_mapping	467792
split_0_1	468112
split_0_2	468112
logradius	493835
update_radius	493837
parameters	493839
split_2	493839
optimize_split	493840
split_fromU	493840
split_0	494161
refine_F	502228
dft	502229
all_roots	529614
clean_roots	529659
fix_roots	530655
a_posteriori_errors	530659
mygprec_special	530664
logpre_modulus	606615
logmodulus	606617
abs_update_r	778426
ind_maxlog2	902427
isexactscalar	931280
isreal	961629
initdft	996066
dual_modulus	1012189
usp	1125931
ZX_sturmpart	1128173
check_ab	1178800
tocomplex	1201028
isvalidcoeff	1229675
ZX_Uspensky	1313777
conformal_basecase	1403486
conformal_pol	1403604
fujiwara_bound_real	1406769
split_complete	1518982
append_clone	1603054
homothetie	1609686
logmin_modulus	1614387
root_error	1899236
mygprecrc_special	2161081
cmp_complex_appr	2231759
ZX_rescale2prim	2233658
fujiwara_bound	2265031
checkbound	2354730
refine_H	2459800
scalepol	4288152
mygprec_absolute	4300500
_mp_mul	4373483
logmax_modulus	4449782
splitpoleval	5223547
bkeval_single_power	5223905
newton_polygon	5505937
X2XP1	5990048
_mp_sqr	6291980
dblexp	6547407
quicktofp	6961063
RgX_gtofp_bit	7023574
abs_update	8003523
mydbllogr	9544303
homothetie2n	9955343
_gen_nored	11175319
eval_rel_pol	13135187
fft	14157445
_gen_one	14443694
ZX_to_ZiX	16455788
pol_to_gaussint	17584993
_mp_add	24651517
_mp_cmul	34729363
myshiftrc	35499711
homothetie_gauss	36492578
lower_bound	40947201
findpower	40947717
graeffe	49496029
mydbllog2r	56779446
mygprec	63701138
ZiX_sqr	99017861
myshiftic	135772257
mygprecrc	215003001
mydbllog2i	226337269
dbllog2	302609123

Generated by: LCOV version 1.16