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 30482-15ec328664) Lines: 1467 1530 95.9 % Date: 2025-09-06 09:24:15 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	15273
_sqrtnr	22708
polrootsbound_i	27293
polrootsbound	27300
RgX_normalize1	35887
ZX_realroots_irred	48636
realroots	50627
ZX_sturm_irred	116769
ZX_sturm_i	123164
polsolve	166673
split_pols	166674
splitcauchy	166680
solve_exact_pol	231145
cleanroots	231749
isexactpol	239739
roots_com	239739
roots_aux	239767
checkvalidpol	267046
QX_complex_roots	296374
_gen_zero	326167
fix_roots1	398395
conformal_mapping	467891
split_1	467894
split_0_1	468214
split_0_2	468214
logradius	493942
optimize_split	493946
parameters	493946
split_2	493946
split_fromU	493946
update_radius	493946
split_0	494267
refine_F	502327
dft	502335
all_roots	536066
clean_roots	536110
a_posteriori_errors	537112
fix_roots	537114
mygprec_special	537117
logpre_modulus	606724
logmodulus	606725
abs_update_r	778667
ind_maxlog2	902609
isexactscalar	931700
isreal	961839
initdft	996279
dual_modulus	1012387
usp	1125961
ZX_sturmpart	1128245
check_ab	1178871
tocomplex	1213843
isvalidcoeff	1230095
ZX_Uspensky	1313875
conformal_basecase	1403799
conformal_pol	1403917
fujiwara_bound_real	1406887
split_complete	1525649
homothetie	1610001
append_clone	1613928
logmin_modulus	1614734
root_error	1912279
mygprecrc_special	2178405
ZX_rescale2prim	2233561
cmp_complex_appr	2238465
fujiwara_bound	2271645
checkbound	2354869
refine_H	2460227
scalepol	4289089
mygprec_absolute	4339158
_mp_mul	4373764
logmax_modulus	4450677
splitpoleval	5234255
bkeval_single_power	5234633
newton_polygon	5506975
X2XP1	5989945
_mp_sqr	6297405
dblexp	6548687
quicktofp	6978575
RgX_gtofp_bit	7031175
abs_update	8004377
mydbllogr	9545487
homothetie2n	9957341
_gen_nored	11197907
eval_rel_pol	13137643
fft	14158914
_gen_one	14470144
ZX_to_ZiX	16454146
pol_to_gaussint	17588336
_mp_add	24659006
_mp_cmul	34759164
myshiftrc	35506032
homothetie_gauss	36500902
lower_bound	40956443
findpower	40957464
graeffe	49507101
mydbllog2r	56753139
mygprec	63752884
ZiX_sqr	99041980
myshiftic	135826395
mygprecrc	215166124
mydbllog2i	226435327
dbllog2	302673309

Generated by: LCOV version 1.16